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Title: The Coordination Behaviour of CuI Photosensitizers Bearing Multidentate Ligands Investigated by X-ray Absorption Spectroscopy

Abstract

A systematic series of four novel homo- and heteroleptic CuI photosensitizers based on tetradentate 1,10-phenanthroline ligands of the type X^N^N^X containing two additional donor moieties in the 2,9-position (X=SMe or OMe) were designed. Their solid-state structures were assessed by X-ray diffraction. Cyclic voltammetry, UV-vis absorption, emission and X-ray absorption spectroscopy were then used to determine their electrochemical, photophysical and structural features in solution. Following, time-resolved X-ray absorption spectroscopy in the picosecond time scale, coupled with time-dependent density functional theory calculations, provided in-depth information on the excited state electron configurations. For the first time, a significant shortening of the Cu–X distance and a change in the coordination mode to a pentacoordinated geometry is shown in the excited states of the two homoleptic complexes. These findings are important with respect to a precise understanding of the excited state structures and a further stabilization of this type of photosensitizers.

Authors:
 [1];  [2];  [3];  [4]; ORCiD logo [3];  [1];  [4]; ORCiD logo [1]; ORCiD logo [2]
  1. Univ. of Stuttgart (Germany)
  2. IMDEA Nanosciencia, Madrid (Spain)
  3. Ulm Univ. (Germany)
  4. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS); IMDEA Nanoscience Inst., Madrid (Spain); Univ. of Stuttgart (Germany)
Sponsoring Org.:
USDOE Office of Science (SC); German Research Foundation (DFG); Instituto IMDEA Nanociencia; Acciones de Dinamizacijn Europa Investigacion; Spanish Ministerio de Ciencia; Baden- Werttemberg Foundation; Ayudante de Investigacion; Ministry of Science and Innovation (Spain); Community of Madrid (Spain)
OSTI Identifier:
1658815
Alternate Identifier(s):
OSTI ID: 1646610
Grant/Contract Number:  
AC02-06CH11357; SEV-2016-0686; EIN2019-103399; PID2019-111086RA-I00; TS 330/4-1; KA 4671/2-1; TS 330/3-1; PEJ-2019-AI/AMB-13038
Resource Type:
Accepted Manuscript
Journal Name:
Chemistry - A European Journal
Additional Journal Information:
Journal Volume: 26; Journal Issue: 43; Journal ID: ISSN 0947-6539
Publisher:
ChemPubSoc Europe
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; copper photosensitizers; excited state structures; multidentate ligands; time-dependent density functional theory; time-resolved X-ray absorption spectroscopy

Citation Formats

Rentschler, Martin, Iglesias, Sirma, Schmid, Marie‐Ann, Liu, Cunming, Tschierlei, Stefanie, Frey, Wolfgang, Zhang, Xiaoyi, Karnahl, Michael, and Moonshiram, Dooshaye. The Coordination Behaviour of CuI Photosensitizers Bearing Multidentate Ligands Investigated by X-ray Absorption Spectroscopy. United States: N. p., 2020. Web. https://doi.org/10.1002/chem.201905601.
Rentschler, Martin, Iglesias, Sirma, Schmid, Marie‐Ann, Liu, Cunming, Tschierlei, Stefanie, Frey, Wolfgang, Zhang, Xiaoyi, Karnahl, Michael, & Moonshiram, Dooshaye. The Coordination Behaviour of CuI Photosensitizers Bearing Multidentate Ligands Investigated by X-ray Absorption Spectroscopy. United States. https://doi.org/10.1002/chem.201905601
Rentschler, Martin, Iglesias, Sirma, Schmid, Marie‐Ann, Liu, Cunming, Tschierlei, Stefanie, Frey, Wolfgang, Zhang, Xiaoyi, Karnahl, Michael, and Moonshiram, Dooshaye. Thu . "The Coordination Behaviour of CuI Photosensitizers Bearing Multidentate Ligands Investigated by X-ray Absorption Spectroscopy". United States. https://doi.org/10.1002/chem.201905601. https://www.osti.gov/servlets/purl/1658815.
@article{osti_1658815,
title = {The Coordination Behaviour of CuI Photosensitizers Bearing Multidentate Ligands Investigated by X-ray Absorption Spectroscopy},
author = {Rentschler, Martin and Iglesias, Sirma and Schmid, Marie‐Ann and Liu, Cunming and Tschierlei, Stefanie and Frey, Wolfgang and Zhang, Xiaoyi and Karnahl, Michael and Moonshiram, Dooshaye},
abstractNote = {A systematic series of four novel homo- and heteroleptic CuI photosensitizers based on tetradentate 1,10-phenanthroline ligands of the type X^N^N^X containing two additional donor moieties in the 2,9-position (X=SMe or OMe) were designed. Their solid-state structures were assessed by X-ray diffraction. Cyclic voltammetry, UV-vis absorption, emission and X-ray absorption spectroscopy were then used to determine their electrochemical, photophysical and structural features in solution. Following, time-resolved X-ray absorption spectroscopy in the picosecond time scale, coupled with time-dependent density functional theory calculations, provided in-depth information on the excited state electron configurations. For the first time, a significant shortening of the Cu–X distance and a change in the coordination mode to a pentacoordinated geometry is shown in the excited states of the two homoleptic complexes. These findings are important with respect to a precise understanding of the excited state structures and a further stabilization of this type of photosensitizers.},
doi = {10.1002/chem.201905601},
journal = {Chemistry - A European Journal},
number = 43,
volume = 26,
place = {United States},
year = {2020},
month = {3}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Figures / Tables:

Scheme 1 Scheme 1: General structures of the homo- (left) and heteroleptic (right) CuI complexes C1–C4 investigated in this study. The numbering on the left side presents the different substituent positions at the 1,10-phenanthroline ligand.

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Works referenced in this record:

Catalyst: Chemistry’s Role in Providing Clean and Affordable Energy for All
journal, October 2016


[Cu(N^N)(P^P)] + complexes with 2,2′:6′,2′′-terpyridine ligands as the N^N domain
journal, January 2015

  • Murray, Niamh S.; Keller, Sarah; Constable, Edwin C.
  • Dalton Transactions, Vol. 44, Issue 16
  • DOI: 10.1039/C5DT00517E

Re-evaluating the Cu K pre-edge XAS transition in complexes with covalent metal–ligand interactions
journal, January 2015

  • Tomson, Neil C.; Williams, Kamille D.; Dai, Xuliang
  • Chemical Science, Vol. 6, Issue 4
  • DOI: 10.1039/C4SC03294B

Characterization of the Excited State Properties of Some New Photosensitizers of the Ruthenium (Polypyridine) Family
journal, November 1981

  • Juris, Alberto; Balzani, Vincenzo; Belser, Peter
  • Helvetica Chimica Acta, Vol. 64, Issue 7
  • DOI: 10.1002/hlca.19810640723

A series of luminescent Cu(i) mixed-ligand complexes containing 2,9-dimethyl-1,10-phenanthroline and simple diphosphine ligands
journal, January 2006

  • Saito, Ken; Arai, Takashi; Takahashi, Naoki
  • Dalton Transactions, Issue 37
  • DOI: 10.1039/b608641a

Death and Rebirth: Photocatalytic Hydrogen Production by a Self-Organizing Copper–Iron System
journal, April 2014

  • Fischer, Steffen; Hollmann, Dirk; Tschierlei, Stefanie
  • ACS Catalysis, Vol. 4, Issue 6
  • DOI: 10.1021/cs500387e

Insights into the Mechanism of Photocatalytic Water Reduction by DFT-Supported In Situ EPR/Raman Spectroscopy
journal, August 2011

  • Hollmann, Dirk; Gärtner, Felix; Ludwig, Ralf
  • Angewandte Chemie International Edition, Vol. 50, Issue 43
  • DOI: 10.1002/anie.201103710

Photochemistry of transition metal complexes. Mechanism and efficiency of energy conversion by electron-transfer quenching
journal, May 1975

  • Bock, C. R.; Meyer, T. J.; Whitten, D. G.
  • Journal of the American Chemical Society, Vol. 97, Issue 10
  • DOI: 10.1021/ja00843a055

Photoactive mono- and polynuclear Cu(i)–phenanthrolines. A viable alternative to Ru(ii)–polypyridines?
journal, January 2001

  • Armaroli, Nicola
  • Chemical Society Reviews, Vol. 30, Issue 2
  • DOI: 10.1039/b000703j

Copper-Based Photosensitisers in Water Reduction: A More Efficient In Situ Formed System and Improved Mechanistic Understanding
journal, December 2015

  • Lennox, Alastair J. J.; Fischer, Steffen; Jurrat, Mark
  • Chemistry - A European Journal, Vol. 22, Issue 4
  • DOI: 10.1002/chem.201503812

Future Global Energy Prosperity: The Terawatt Challenge
journal, June 2005


Determination of side products in the photocatalytic generation of hydrogen with copper photosensitizers by resonance Raman spectroelectrochemistry
journal, January 2016

  • Zhang, Ying; Heberle, Martin; Wächtler, Maria
  • RSC Advances, Vol. 6, Issue 107
  • DOI: 10.1039/C6RA21469J

Nickel–Thiolate Complex Catalyst Assembled in One Step in Water for Solar H 2 Production
journal, December 2011

  • Zhang, Wei; Hong, Jindui; Zheng, Jianwei
  • Journal of the American Chemical Society, Vol. 133, Issue 51
  • DOI: 10.1021/ja208555h

Improving the photoresponse of copper(i) dyes in dye-sensitized solar cells by tuning ancillary and anchoring ligand modules
journal, January 2013

  • Bozic-Weber, Biljana; Brauchli, Sven Y.; Constable, Edwin C.
  • Dalton Transactions, Vol. 42, Issue 34
  • DOI: 10.1039/c3dt51416a

Chromium(0), Molybdenum(0), and Tungsten(0) Isocyanide Complexes as Luminophores and Photosensitizers with Long-Lived Excited States
journal, April 2017

  • Büldt, Laura A.; Wenger, Oliver S.
  • Angewandte Chemie International Edition, Vol. 56, Issue 21
  • DOI: 10.1002/anie.201701210

An Efficient Homogeneous Intermolecular Rhenium-Based Photocatalytic System for the Production of H 2
journal, March 2009

  • Probst, Benjamin; Kolano, Christoph; Hamm, Peter
  • Inorganic Chemistry, Vol. 48, Issue 5
  • DOI: 10.1021/ic8013255

“Shine & Click” Photo-Induced Interfacial Unmasking of Strained Alkynes on Small Water-Soluble Gold Nanoparticles
journal, November 2016

  • Luo, Wilson; Gobbo, Pierangelo; McNitt, Christopher D.
  • Chemistry - A European Journal, Vol. 23, Issue 5
  • DOI: 10.1002/chem.201603398

Heteroleptic Copper Photosensitizers: Why an Extended π-System Does Not Automatically Lead to Enhanced Hydrogen Production
journal, December 2016

  • Heberle, Martin; Tschierlei, Stefanie; Rockstroh, Nils
  • Chemistry - A European Journal, Vol. 23, Issue 2
  • DOI: 10.1002/chem.201604005

Probing the Diphosphine Ligand’s Impact within Heteroleptic, Visible-Light-Absorbing Cu(I) Photosensitizers for Solar Fuels Production
journal, December 2018

  • Saeedi, Sima; Xue, Congcong; McCullough, Bradley J.
  • ACS Applied Energy Materials, Vol. 2, Issue 1
  • DOI: 10.1021/acsaem.8b02098

Redox-coupled structural changes in copper chemistry: Implications for atom transfer catalysis
journal, November 2018


Heteroleptic diimine copper(i) complexes with large extinction coefficients: synthesis, quantum chemistry calculations and physico-chemical properties
journal, January 2013

  • Sandroni, Martina; Kayanuma, Megumi; Rebarz, Mateusz
  • Dalton Transactions, Vol. 42, Issue 40
  • DOI: 10.1039/c3dt51288f

Retardation of Back Electron Transfer in Photoredox Processes by the Addition of Surfactant Micelles
journal, August 1985


Highly Efficient Photocatalytic Water Reduction with Robust Iridium(III) Photosensitizers Containing Arylsilyl Substituents
journal, September 2013

  • Whang, Dong Ryeol; Sakai, Ken; Park, Soo Young
  • Angewandte Chemie, Vol. 125, Issue 44
  • DOI: 10.1002/ange.201305684

[Cu(P^P)(N^N)][PF 6 ] compounds with bis(phosphane) and 6-alkoxy, 6-alkylthio, 6-phenyloxy and 6-phenylthio-substituted 2,2′-bipyridine ligands for light-emitting electrochemical cells
journal, January 2018

  • Alkan-Zambada, Murat; Keller, Sarah; Martínez-Sarti, Laura
  • Journal of Materials Chemistry C, Vol. 6, Issue 31
  • DOI: 10.1039/C8TC02882F

X-ray absorption near-edge spectroscopy in bioinorganic chemistry: Application to M–O2 systems
journal, January 2013


Photocatalytic Hydrogen Production with Copper Photosensitizer-Titanium Dioxide Composites
journal, August 2013


Ultrafast Excited-State Dynamics of Copper(I) Complexes
journal, February 2015

  • Iwamura, Munetaka; Takeuchi, Satoshi; Tahara, Tahei
  • Accounts of Chemical Research, Vol. 48, Issue 3
  • DOI: 10.1021/ar500353h

Designing Highly Efficient Cu I Photosensitizers for Photocatalytic H 2 Evolution from Water
journal, April 2017


New luminescent copper(I) complexes with extended π-conjugation
journal, February 2018


Homogeneous photocatalytic production of hydrogen from water by a bioinspired [Fe 2 S 2 ] catalyst with high turnover numbers
journal, January 2010

  • Zhang, Pan; Wang, Mei; Na, Yong
  • Dalton Trans., Vol. 39, Issue 5
  • DOI: 10.1039/B923159P

Mechanistic Evaluation of a Nickel Proton Reduction Catalyst Using Time-Resolved X-ray Absorption Spectroscopy
journal, September 2016

  • Moonshiram, Dooshaye; Guda, Alexander; Kohler, Lars
  • The Journal of Physical Chemistry C, Vol. 120, Issue 36
  • DOI: 10.1021/acs.jpcc.6b06883

Solution and solid-state conformations of 1,5-pyridine and 1,5-phenanthroline-bridged p-tert-butylcalix[8]arene derivatives
journal, September 2013


Biomimetic and Microbial Approaches to Solar Fuel Generation
journal, December 2009

  • Magnuson, Ann; Anderlund, Magnus; Johansson, Olof
  • Accounts of Chemical Research, Vol. 42, Issue 12
  • DOI: 10.1021/ar900127h

Neutral copper( i ) dipyrrin complexes and their use as sensitizers in dye-sensitized solar cells
journal, January 2014

  • Hewat, Tracy E.; Yellowlees, Lesley J.; Robertson, Neil
  • Dalton Trans., Vol. 43, Issue 10
  • DOI: 10.1039/C3DT53334D

Fast synthesis of a tris(N,N-diimine)chromium( iii ) complex by a microwave-assisted approach
journal, January 2014

  • Silvero, M. Jazmín; Peláez, Walter José; Garcia, Pablo F.
  • RSC Adv., Vol. 4, Issue 30
  • DOI: 10.1039/C3RA45842C

Projection, size factors, and reaction dynamics of colloidal redox catalysts mediating light induced hydrogen evolution from water
journal, November 1979

  • Kiwi, J.; Graetzel, M.
  • Journal of the American Chemical Society, Vol. 101, Issue 24
  • DOI: 10.1021/ja00518a015

Oxygen Gas Sensing by Luminescence Quenching in Crystals of Cu(xantphos)(phen) + Complexes
journal, October 2010

  • Smith, Conor S.; Branham, Charles W.; Marquardt, Brian J.
  • Journal of the American Chemical Society, Vol. 132, Issue 40
  • DOI: 10.1021/ja103112m

Heteroleptic Copper(I) Complexes Prepared from Phenanthroline and Bis-Phosphine Ligands
journal, September 2013

  • Kaeser, Adrien; Mohankumar, Meera; Mohanraj, John
  • Inorganic Chemistry, Vol. 52, Issue 20
  • DOI: 10.1021/ic4020042

Estimation of excited-state redox potentials by electron-transfer quenching. Application of electron-transfer theory to excited-state redox processes
journal, August 1979

  • Bock, C. R.; Connor, J. A.; Gutierrez, A. R.
  • Journal of the American Chemical Society, Vol. 101, Issue 17
  • DOI: 10.1021/ja00511a007

A distorted tetrahedral copper(II) complex of a tetradentate Schiff base ligand
journal, March 1979

  • Elder, R. C.; Hill, Michael C.
  • Inorganic Chemistry, Vol. 18, Issue 3
  • DOI: 10.1021/ic50193a041

Reductive Side of Water Splitting in Artificial Photosynthesis: New Homogeneous Photosystems of Great Activity and Mechanistic Insight
journal, November 2010

  • McCormick, Theresa M.; Calitree, Brandon D.; Orchard, Alexandra
  • Journal of the American Chemical Society, Vol. 132, Issue 44
  • DOI: 10.1021/ja1057357

Rapid Excited-State Structural Reorganization Captured by Pulsed X-rays
journal, September 2002

  • Chen, Lin X.; Jennings, Guy; Liu, Tao
  • Journal of the American Chemical Society, Vol. 124, Issue 36
  • DOI: 10.1021/ja017214g

MLCT State Structure and Dynamics of a Copper(I) Diimine Complex Characterized by Pump−Probe X-ray and Laser Spectroscopies and DFT Calculations
journal, June 2003

  • Chen, Lin X.; Shaw, George B.; Novozhilova, Irina
  • Journal of the American Chemical Society, Vol. 125, Issue 23
  • DOI: 10.1021/ja0294663

Heteroleptic [Cu(P^P)(N^N)][PF6] Compounds with Isomeric Dibromo-1,10-Phenanthroline Ligands
journal, January 2020


Design of a Long-Lifetime, Earth-Abundant, Aqueous Compatible Cu(I) Photosensitizer Using Cooperative Steric Effects
journal, July 2013

  • McCusker, Catherine E.; Castellano, Felix N.
  • Inorganic Chemistry, Vol. 52, Issue 14
  • DOI: 10.1021/ic401213p

Elucidating the Nature of the Excited State of a Heteroleptic Copper Photosensitizer by using Time-Resolved X-ray Absorption Spectroscopy
journal, April 2018

  • Moonshiram, Dooshaye; Garrido-Barros, Pablo; Gimbert-Suriñach, Carolina
  • Chemistry - A European Journal, Vol. 24, Issue 24
  • DOI: 10.1002/chem.201800330

Towards Artificial Leaves for Solar Hydrogen and Fuels from Carbon Dioxide
journal, March 2012


Three-Dimensional Local Structure of Photoexcited Cu Diimine Complex Refined by Quantitative XANES Analysis
journal, June 2008

  • Smolentsev, Grigory; Soldatov, Alexander V.; Chen, Lin X.
  • The Journal of Physical Chemistry A, Vol. 112, Issue 24
  • DOI: 10.1021/jp801410a

The Future of Energy Supply: Challenges and Opportunities
journal, January 2007

  • Armaroli, Nicola; Balzani, Vincenzo
  • Angewandte Chemie International Edition, Vol. 46, Issue 1-2
  • DOI: 10.1002/anie.200602373

Powering the planet: Chemical challenges in solar energy utilization
journal, October 2006

  • Lewis, N. S.; Nocera, D. G.
  • Proceedings of the National Academy of Sciences, Vol. 103, Issue 43, p. 15729-15735
  • DOI: 10.1073/pnas.0603395103

Electronic Structures of Metal Sites in Proteins and Models:  Contributions to Function in Blue Copper Proteins
journal, February 2004

  • Solomon, Edward I.; Szilagyi, Robert K.; DeBeer George, Serena
  • Chemical Reviews, Vol. 104, Issue 2
  • DOI: 10.1021/cr0206317

Isocyanid-Komplexe von Cr 0 , Mo 0 und W 0 als Leuchtstoffe und Photosensibilisatoren mit langlebigen angeregten Zuständen
journal, April 2017


Energy alternatives: Electricity without carbon
journal, August 2008

  • Schiermeier, Quirin; Tollefson, Jeff; Scully, Tony
  • Nature, Vol. 454, Issue 7206
  • DOI: 10.1038/454816a

Homogeneous Photocatalytic Hydrogen Production Using π-Conjugated Platinum(II) Arylacetylide Sensitizers
journal, February 2011

  • Wang, Xianghuai; Goeb, Sébastien; Ji, Zhiqiang
  • Inorganic Chemistry, Vol. 50, Issue 3
  • DOI: 10.1021/ic101731j

Powering the future of molecular artificial photosynthesis with light-harvesting metallosupramolecular dye assemblies
journal, January 2013

  • Frischmann, Peter D.; Mahata, Kingsuk; Würthner, Frank
  • Chem. Soc. Rev., Vol. 42, Issue 4
  • DOI: 10.1039/C2CS35223K

Highly Efficient Photocatalytic Water Reduction with Robust Iridium(III) Photosensitizers Containing Arylsilyl Substituents
journal, September 2013

  • Whang, Dong Ryeol; Sakai, Ken; Park, Soo Young
  • Angewandte Chemie International Edition, Vol. 52, Issue 44
  • DOI: 10.1002/anie.201305684

Advances in the light conversion properties of Cu(I)-based photosensitizers
journal, November 2014


Coherent Nuclear Dynamics in Ultrafast Photoinduced Structural Change of Bis(diimine)copper(I) Complex
journal, May 2011

  • Iwamura, Munetaka; Watanabe, Hidekazu; Ishii, Kunihiko
  • Journal of the American Chemical Society, Vol. 133, Issue 20
  • DOI: 10.1021/ja108645x

XANES spectra of copper(II) complexes: correlation of the intensity of the 1s .fwdarw. 3d transition and the shape of the complex
journal, February 1992

  • Sano, Mitsuru; Komorita, Seiko; Yamatera, Hideo
  • Inorganic Chemistry, Vol. 31, Issue 3
  • DOI: 10.1021/ic00029a022

Einblicke in den Mechanismus der photokatalytischen Wasserreduktion durch DFT-gestützte In-situ-EPR/Raman-Spektroskopie
journal, August 2011

  • Hollmann, Dirk; Gärtner, Felix; Ludwig, Ralf
  • Angewandte Chemie, Vol. 123, Issue 43
  • DOI: 10.1002/ange.201103710

Making Hydrogen from Water Using a Homogeneous System Without Noble Metals
journal, July 2009

  • Lazarides, Theodore; McCormick, Theresa; Du, Pingwu
  • Journal of the American Chemical Society, Vol. 131, Issue 26
  • DOI: 10.1021/ja903044n

Metal-complex chromophores for solar hydrogen generation
journal, January 2017

  • Yuan, Yong-Jun; Yu, Zhen-Tao; Chen, Da-Qin
  • Chemical Society Reviews, Vol. 46, Issue 3
  • DOI: 10.1039/C6CS00436A

Solvent-Induced Luminescence Quenching: Static and Time-Resolved X-Ray Absorption Spectroscopy of a Copper(I) Phenanthroline Complex
journal, May 2013

  • Penfold, T. J.; Karlsson, S.; Capano, G.
  • The Journal of Physical Chemistry A, Vol. 117, Issue 22
  • DOI: 10.1021/jp403751m

Solar Electricity and Solar Fuels: Status and Perspectives in the Context of the Energy Transition
journal, November 2015

  • Armaroli, Nicola; Balzani, Vincenzo
  • Chemistry - A European Journal, Vol. 22, Issue 1
  • DOI: 10.1002/chem.201503580

A pentanuclear iron catalyst designed for water oxidation
journal, February 2016

  • Okamura, Masaya; Kondo, Mio; Kuga, Reiko
  • Nature, Vol. 530, Issue 7591
  • DOI: 10.1038/nature16529

Interplays of excited state structures and dynamics in copper(I) diimine complexes: Implications and perspectives
journal, January 2015

  • Mara, Michael W.; Fransted, Kelly A.; Chen, Lin X.
  • Coordination Chemistry Reviews, Vol. 282-283
  • DOI: 10.1016/j.ccr.2014.06.013

Tracking the Structural and Electronic Configurations of a Cobalt Proton Reduction Catalyst in Water
journal, August 2016

  • Moonshiram, Dooshaye; Gimbert-Suriñach, Carolina; Guda, Alexander
  • Journal of the American Chemical Society, Vol. 138, Issue 33
  • DOI: 10.1021/jacs.6b05680

Electron Transfer by Copper Centers
journal, February 2004

  • Rorabacher, David B.
  • Chemical Reviews, Vol. 104, Issue 2, p. 651-698
  • DOI: 10.1021/cr020630e

σ-Hammett parameter: a strategy to enhance both photo- and electro-luminescence features of heteroleptic copper( i ) complexes
journal, January 2017

  • Weber, Michael D.; Viciano-Chumillas, Marta; Armentano, Donatella
  • Dalton Transactions, Vol. 46, Issue 19
  • DOI: 10.1039/C7DT00810D

Photocatalytic CO 2 Reduction Using Cu(I) Photosensitizers with a Fe(II) Catalyst
journal, March 2016

  • Takeda, Hiroyuki; Ohashi, Kenji; Sekine, Akiko
  • Journal of the American Chemical Society, Vol. 138, Issue 13
  • DOI: 10.1021/jacs.6b01970

Photoinduced Structural Dynamics of Molecular Systems Mapped by Time-Resolved X-ray Methods
journal, May 2017


Review of photocatalytic water-splitting methods for sustainable hydrogen production: Review: photocatalysis for sustainable hydrogen
journal, May 2016

  • Acar, Canan; Dincer, Ibrahim; Naterer, Greg F.
  • International Journal of Energy Research, Vol. 40, Issue 11
  • DOI: 10.1002/er.3549

Recent developments in hydrogen evolving molecular cobalt(II)–polypyridyl catalysts
journal, December 2015

  • Queyriaux, Nicolas; Jane, Reuben T.; Massin, Julien
  • Coordination Chemistry Reviews, Vol. 304-305
  • DOI: 10.1016/j.ccr.2015.03.014

An element of surprise—efficient copper-functionalized dye-sensitized solar cells
journal, January 2008

  • Bessho, Takeru; Constable, Edwin C.; Graetzel, Michael
  • Chemical Communications, Issue 32
  • DOI: 10.1039/b808491b

Photocatalytic Water Reduction with Copper-Based Photosensitizers: A Noble-Metal-Free System
journal, October 2012

  • Luo, Shu-Ping; Mejía, Esteban; Friedrich, Aleksej
  • Angewandte Chemie, Vol. 125, Issue 1
  • DOI: 10.1002/ange.201205915

Using Scanning Electrochemical Microscopy to Examine Copper(I) Sensitizers for Dye-Sensitized Solar Cells
journal, May 2014

  • Martin, Colin J.; Bozic-Weber, Biljana; Constable, Edwin C.
  • The Journal of Physical Chemistry C, Vol. 118, Issue 30
  • DOI: 10.1021/jp500409c

Redox Properties of Copper(I) Complex Bearing 4,7-Diphenyl-2,9-dimethyl-1,10-phenanthroline and 1,4-Bis(diphenylphosphino)butane Ligands and Effects of Light in the Presence of Chloroform
journal, March 2017

  • Nishikawa, Michihiro; Kakizoe, Daichi; Saito, Yuma
  • Bulletin of the Chemical Society of Japan, Vol. 90, Issue 3
  • DOI: 10.1246/bcsj.20160339

Influence of Ligand Substitution on Excited State Structural Dynamics in Cu(I) Bisphenanthroline Complexes
journal, November 2010

  • Lockard, Jenny V.; Kabehie, Sanaz; Zink, Jeffrey I.
  • The Journal of Physical Chemistry B, Vol. 114, Issue 45
  • DOI: 10.1021/jp102278u

Substitution-Controlled Excited State Processes in Heteroleptic Copper(I) Photosensitizers Used in Hydrogen Evolving Systems
journal, September 2014

  • Tschierlei, Stefanie; Karnahl, Michael; Rockstroh, Nils
  • ChemPhysChem, Vol. 15, Issue 17
  • DOI: 10.1002/cphc.201402585

Dye-Sensitized Solar Cell Studies of a Donor-Appended Bis(2,9-dimethyl-1,10-phenanthroline) Cu(I) Dye Paired with a Cobalt-Based Mediator
journal, February 2013

  • Ashbrook, Lance N.; Elliott, C. Michael
  • The Journal of Physical Chemistry C, Vol. 117, Issue 8
  • DOI: 10.1021/jp3123693

Understanding and exploiting long-lived near-infrared emission of a molecular ruby
journal, March 2018


A Noble-Metal-Free System for Photocatalytic Hydrogen Production from Water
journal, October 2013

  • Mejía, Esteban; Luo, Shu-Ping; Karnahl, Michael
  • Chemistry - A European Journal, Vol. 19, Issue 47
  • DOI: 10.1002/chem.201302091

Eisencarbonyle: effiziente Katalysatoren für die lichtgetriebene Wasserstofferzeugung aus Wasser
journal, November 2009

  • Gärtner, Felix; Sundararaju, Basker; Surkus, Annette-Enrica
  • Angewandte Chemie, Vol. 121, Issue 52
  • DOI: 10.1002/ange.200905115

Hydrogen Generation by Visible Light Irradiation of Aqueous Solutions of Metal Complexes. An approach to the photochemical conversion and storage of solar energy
journal, June 1979

  • Kirch, Michele; Lehn, Jean-Marie; Sauvage, Jean-Pierre
  • Helvetica Chimica Acta, Vol. 62, Issue 4
  • DOI: 10.1002/hlca.19790620449

Visible Light-Driven Hydrogen Production from Aqueous Protons Catalyzed by Molecular Cobaloxime Catalysts
journal, June 2009

  • Du, Pingwu; Schneider, Jacob; Luo, Genggeng
  • Inorganic Chemistry, Vol. 48, Issue 11
  • DOI: 10.1021/ic900389z

Vibrational Energy Flow Controls Internal Conversion in a Transition Metal Complex
journal, September 2010

  • Hedley, Gordon J.; Ruseckas, Arvydas; Samuel, Ifor D. W.
  • The Journal of Physical Chemistry A, Vol. 114, Issue 34
  • DOI: 10.1021/jp101087v

X-ray absorption edge determination of the oxidation state and coordination number of copper. Application to the type 3 site in Rhus vernicifera laccase and its reaction with oxygen
journal, October 1987

  • Kau, Lung Shan; Spira-Solomon, Darlene J.; Penner-Hahn, James E.
  • Journal of the American Chemical Society, Vol. 109, Issue 21
  • DOI: 10.1021/ja00255a032

Photocatalytic Hydrogen Generation from Water with Iron Carbonyl Phosphine Complexes: Improved Water Reduction Catalysts and Mechanistic Insights
journal, April 2011

  • Gärtner, Felix; Boddien, Albert; Barsch, Enrico
  • Chemistry – A European Journal, Vol. 17, Issue 23
  • DOI: 10.1002/chem.201003564

Photocatalytic Water Reduction with Copper-Based Photosensitizers: A Noble-Metal-Free System
journal, October 2012

  • Luo, Shu-Ping; Mejía, Esteban; Friedrich, Aleksej
  • Angewandte Chemie International Edition, Vol. 52, Issue 1
  • DOI: 10.1002/anie.201205915

Photochemistry and photophysics of Ru(II)polypyridine complexes in the Bologna group. From early studies to recent developments
journal, January 2001


Light-Driven Hydrogen Generation: Efficient Iron-Based Water Reduction Catalysts
journal, December 2009

  • Gärtner, Felix; Sundararaju, Basker; Surkus, Annette-Enrica
  • Angewandte Chemie International Edition, Vol. 48, Issue 52
  • DOI: 10.1002/anie.200905115

A Multiplet Analysis of Fe K-Edge 1s → 3d Pre-Edge Features of Iron Complexes
journal, July 1997

  • Westre, Tami E.; Kennepohl, Pierre; DeWitt, Jane G.
  • Journal of the American Chemical Society, Vol. 119, Issue 27
  • DOI: 10.1021/ja964352a

Cu( i ) vs. Ru( ii ) photosensitizers: elucidation of electron transfer processes within a series of structurally related complexes containing an extended π-system
journal, January 2018

  • Zhang, Ying; Traber, Philipp; Zedler, Linda
  • Physical Chemistry Chemical Physics, Vol. 20, Issue 38
  • DOI: 10.1039/C8CP04595J

Copper Photosensitizers Containing P^N Ligands and Their Influence on Photoactivity and Stability
journal, November 2017

  • Giereth, Robin; Frey, Wolfgang; Junge, Henrik
  • Chemistry - A European Journal, Vol. 23, Issue 69
  • DOI: 10.1002/chem.201703672

Photocatalytic hydrogen production
journal, January 2011

  • Teets, Thomas S.; Nocera, Daniel G.
  • Chemical Communications, Vol. 47, Issue 33
  • DOI: 10.1039/c1cc12390d

Heteroleptic bis-diimine copper(I) complexes for applications in solar energy conversion
journal, January 2016


Light Induced Redox Reactions of Water Soluble Porphyrins, sensitization of hydrogen generation from water by zincporphyrin derivatives
journal, March 1980


The role of the bridging ligand in photocatalytic supramolecular assemblies for the reduction of protons and carbon dioxide
journal, August 2012

  • Schulz, Martin; Karnahl, Michael; Schwalbe, Matthias
  • Coordination Chemistry Reviews, Vol. 256, Issue 15-16
  • DOI: 10.1016/j.ccr.2012.02.016

Die Zukunft der Energieversorgung – Herausforderungen und Chancen
journal, January 2007


Imidazo-Phenanthroline Ligands as a Convenient Modular Platform for the Preparation of Heteroleptic Cu(I) Photosensitizers
journal, December 2018