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Title: Intramolecular sensitization of americium luminescence in solution: shining light on short-lived forbidden 5f transitions

Journal Article · · Dalton Transactions
DOI:https://doi.org/10.1039/c6dt00328a· OSTI ID:1454447
 [1];  [2];  [3];  [1]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Chemical Sciences Division
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Aix-Marseille Univ., CNRS, CINaM UMR, Marseille (France)

In this study, the photophysical properties and solution thermodynamics of water soluble trivalent americium (AmIII) complexes formed with multidentate chromophore-bearing ligands, 3,4,3-LI(1,2-HOPO), Enterobactin, and 5-LIO(Me-3,2-HOPO), were investigated. The three chelators were shown to act as antenna chromophores for AmIII, generating sensitized luminescence emission from the metal upon complexation, with very short lifetimes ranging from 33 to 42 ns and low luminescence quantum yields (10–3 to 10–2%), characteristic of Near Infra-Red emitters in similar systems. The specific emission peak of AmIII assigned to the 5D17F1 f–f transition was exploited to characterize the high proton-independent stability of the complex formed with the most efficient sensitizer 3,4,3-LI(1,2-HOPO), with a log β110 = 20.4 ± 0.2 value. In addition, the optical and solution thermodynamic features of these AmIII complexes, combined with density functional theory calculations, were used to probe the influence of electronic structure on coordination properties across the f-element series and to gain insight into ligand field effects.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER); USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division; USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC02-05CH11231; AC52-06NA25396
OSTI ID:
1454447
Alternate ID(s):
OSTI ID: 1246892
Report Number(s):
LA-UR-16-20418; ICHBD9; ark:/13030/qt2xf4r3h7
Journal Information:
Dalton Transactions, Vol. 45, Issue 24; Related Information: © 2016 The Royal Society of Chemistry.; ISSN 1477-9226
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 19 works
Citation information provided by
Web of Science

References (44)

Photoluminescence of americium(III) in aqueous and organic solutions journal December 1990
Generalized Gradient Approximation Made Simple journal October 1996
Lanthanide 4f-electron binding energies and the nephelauxetic effect in wide band gap compounds journal April 2013
Understanding the Solution Behavior of Minor Actinides in the Presence of EDTA 4– , Carbonate, and Hydroxide Ligands journal June 2012
Some recent advances in the study and characterization of f-element materials via optical spectroscopy journal July 1995
A systematic analysis of the spectra of trivalent actinide chlorides in D 3 h site symmetry journal June 1992
Dose-Dependent Efficacy and Safety Toxicology of Hydroxypyridinonate Actinide Decorporation Agents in Rodents: Towards a Safe and Effective Human Dosing Regimen journal February 2013
Spectroscopic Properties and Hydration of the Cm(III) Aqua Ion from 10 to 85 °C journal March 2011
Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides journal September 1976
Separation of Americium from Curium by Oxidation and Ion Exchange journal July 2012
Highly Luminescent and Stable Hydroxypyridinonate Complexes: A Step Towards New Curium Decontamination Strategies journal July 2014
The future of nuclear energy in the world journal June 1998
Differentiating between Trivalent Lanthanides and Actinides journal June 2012
Luminescence study on determination of the hydration number of Cm(III) journal October 1994
Chemistry with ADF journal January 2001
3,4,3-LI(1,2-HOPO): In vitro formation of highly stable lanthanide complexes translates into efficacious in vivo europium decorporation journal January 2011
Tendency of the Nephelauxetic Effect to Vary in a Series of Lanthanide Complexes with Allyl Acetoacetate journal January 2015
Charge transfer excited states sensitization of lanthanide emitting from the visible to the near-infra-red journal August 2012
Photoluminescence and Raman Studies of Curium and Americium Complexes of 6-Methyl 2-(2-Pyridyl)-benzimidazole:  Evidence for an Efficient Intramolecular Energy Transfer journal November 2003
Some aspects of actinide speciation by laser-induced spectroscopy journal April 2006
Alternatives to HDEHP and DTPA for Simplified TALSPEAK Separations journal June 2011
Interpretation of europium(III) spectra journal July 2015
Prospects for Nuclear Power journal February 2012
Developments in the photophysics and photochemistry of actinide ions and their coordination compounds journal August 2012
Siderocalin-mediated recognition, sensitization, and cellular uptake of actinides journal August 2015
On the determination of the number of water molecules, q, coordinated to europium(III) ions in solution from luminescence decay lifetimes journal November 2002
Spectroscopic Studies and Crystal-Field Analyses of Am3+: LiYF4 journal March 1997
f-State luminescence of trivalent lanthanide and actinide ions in solution journal June 1994
Spectral-luminescent properties of actinides in elpasolite structure journal November 1990
Investigation of equilibria in solution. Determination of equilibrium constants with the HYPERQUAD suite of programs journal October 1996
New Insights into Structure and Luminescence of Eu III and Sm III Complexes of the 3,4,3-LI(1,2-HOPO) Ligand journal February 2015
First fluorescence spectroscopic investigation of Am(III) complexation with an organic carboxylic ligand, pyromellitic acid journal January 2011
Spectroscopic study of americium(III) complexes with nitrogen containing organic model ligands journal November 2013
Luminescence Analysis of Actinides: Instrumentation, Applications, Quantification, Future Trends, and Quality Assurance book January 2008
Optimized Slater-type basis sets for the elements 1-118 journal May 2003
Luminescence study on determination of the inner-sphere hydration number of Am(III) and Nd(III) journal June 1998
Using the Antenna Effect as a Spectroscopic Tool: Photophysics and Solution Thermodynamics of the Model Luminescent Hydroxypyridonate Complex [Eu III (3,4,3-LI(1,2-HOPO))] journal December 2009
Hyperquad simulation and speciation (HySS): a utility program for the investigation of equilibria involving soluble and partially soluble species journal April 1999
The role of carboxylic acids in TALSQuEAK separations journal August 2012
Structural characterization of Am incorporated into calcite: A TRLFS and EXAFS study journal October 2006
Sensitizing Curium Luminescence through an Antenna Protein To Investigate Biological Actinide Transport Mechanisms
  • Sturzbecher-Hoehne, Manuel; Goujon, Christophe; Deblonde, Gauthier J. -P.
  • Journal of the American Chemical Society, Vol. 135, Issue 7 https://doi.org/10.1021/ja310957f
journal February 2013
Relativistic regular two‐component Hamiltonians journal September 1993
Ytterbium-Based Bioprobes for Near-Infrared Two-Photon Scanning Laser Microscopy Imaging journal May 2012
Nephelauxetic Effect and Hypersensitivity in the Optical Spectra of Actinides journal December 1997

Cited By (9)

Spectroscopic and Computational Characterization of Diethylenetriaminepentaacetic Acid/Transplutonium Chelates: Evidencing Heterogeneity in the Heavy Actinide(III) Series journal March 2018
The coordination chemistry of lanthanide and actinide metal ions with hydroxypyridinone-based decorporation agents: orbital and density based analyses journal January 2018
An Americium‐Containing Metal–Organic Framework: A Platform for Studying Transplutonium Elements journal September 2019
Ultra-selective ligand-driven separation of strategic actinides journal June 2019
Comparing the 2,2′-Biphenylenedithiophosphinate Binding of Americium with Neodymium and Europium journal September 2016
An Americium‐Containing Metal–Organic Framework: A Platform for Studying Transplutonium Elements journal November 2019
Spectroscopic and Computational Characterization of Diethylenetriaminepentaacetic Acid/Transplutonium Chelates: Evidencing Heterogeneity in the Heavy Actinide(III) Series journal March 2018
Spontaneous Chelation‐Driven Reduction of the Neptunyl Cation in Aqueous Solution journal February 2020
Comparing the 2,2′-Biphenylenedithiophosphinate Binding of Americium with Neodymium and Europium journal September 2016

Figures / Tables (6)