Unusual Coexistence of Nickel(II) and Nickel(IV) in the Quadruple Perovskite Ba4Ni2Ir2O12 Containing Ir2NiO12 Mixed-Metal-Cation Trimers

Ferreira, Timothy; Heald, Steve M.; Smith, Mark. D.; zur Loye, Hans-Conrad

doi:10.1021/acs.inorgchem.8b00249

Title: Unusual Coexistence of Nickel(II) and Nickel(IV) in the Quadruple Perovskite Ba₄Ni₂Ir₂O₁₂ Containing Ir₂NiO₁₂ Mixed-Metal-Cation Trimers

Abstract

In this paper, the crystal chemistry and magnetic properties of two hexagonal nickel(IV)-containing perovskites, Ba₄Ni_1.94Ir_2.06O₁₂ and BaNiO₃, are reported. The 12R perovskite, Ba₄Ni_1.94Ir_2.06O₁₂, possesses an unexpected coexistence of nickel(II) and nickel(IV). This quadruple perovskite structure contains Ir₂NiO₁₂ mixed-metal-cation units in which direct metal–metal bonding between nickel(IV) and iridium(V) is inferred. Finally, X-ray absorption near-edge spectroscopy and X-ray photoelectron spectroscopy measurements were conducted to confirm the simultaneous presence of nickel(II) and nickel(IV).

Authors:

Ferreira, Timothy ^[1]; Heald, Steve M. ^[2]; Smith, Mark. D. ^[1];

^[1]

Univ. of South Carolina, Columbia, SC (United States). Dept. of Chemistry and Biochemistry
Argonne National Lab. (ANL), Argonne, IL (United States). X-ray Science Division, Advanced Photon Source (APS)

Publication Date:: 2018-03-02

Research Org.:: Argonne National Laboratory (ANL), Argonne, IL (United States); Univ. of South Carolina, Columbia, SC (United States)

Sponsoring Org.:: USDOE Office of Science (SC); National Science Foundation (NSF)

OSTI Identifier:: 1433915

Grant/Contract Number:: AC02-06CH11357; DMR-1301757; OIA-1655740

Resource Type:: Accepted Manuscript

Journal Name:: Inorganic Chemistry

Additional Journal Information:: Journal Volume: 57; Journal Issue: 6; Journal ID: ISSN 0020-1669

Publisher:: American Chemical Society (ACS)

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats


                    Ferreira, Timothy, Heald, Steve M., Smith, Mark. D., and zur Loye, Hans-Conrad. Unusual Coexistence of Nickel(II) and Nickel(IV) in the Quadruple Perovskite Ba4Ni2Ir2O12 Containing Ir2NiO12 Mixed-Metal-Cation Trimers.  United States: N. p., 2018. 
Web.  doi:10.1021/acs.inorgchem.8b00249.

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                    Ferreira, Timothy, Heald, Steve M., Smith, Mark. D., & zur Loye, Hans-Conrad. Unusual Coexistence of Nickel(II) and Nickel(IV) in the Quadruple Perovskite Ba4Ni2Ir2O12 Containing Ir2NiO12 Mixed-Metal-Cation Trimers.  United States.  https://doi.org/10.1021/acs.inorgchem.8b00249

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                    Ferreira, Timothy, Heald, Steve M., Smith, Mark. D., and zur Loye, Hans-Conrad. Fri .  
"Unusual Coexistence of Nickel(II) and Nickel(IV) in the Quadruple Perovskite Ba4Ni2Ir2O12 Containing Ir2NiO12 Mixed-Metal-Cation Trimers".  United States.  https://doi.org/10.1021/acs.inorgchem.8b00249.  https://www.osti.gov/servlets/purl/1433915.

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@article{osti_1433915,

  title        = {Unusual Coexistence of Nickel(II) and Nickel(IV) in the Quadruple Perovskite Ba4Ni2Ir2O12 Containing Ir2NiO12 Mixed-Metal-Cation Trimers},

  author       = {Ferreira, Timothy and Heald, Steve M. and Smith, Mark. D. and zur Loye, Hans-Conrad},

  abstractNote = {In this paper, the crystal chemistry and magnetic properties of two hexagonal nickel(IV)-containing perovskites, Ba4Ni1.94Ir2.06O12 and BaNiO3, are reported. The 12R perovskite, Ba4Ni1.94Ir2.06O12, possesses an unexpected coexistence of nickel(II) and nickel(IV). This quadruple perovskite structure contains Ir2NiO12 mixed-metal-cation units in which direct metal–metal bonding between nickel(IV) and iridium(V) is inferred. Finally, X-ray absorption near-edge spectroscopy and X-ray photoelectron spectroscopy measurements were conducted to confirm the simultaneous presence of nickel(II) and nickel(IV).},

  doi          = {10.1021/acs.inorgchem.8b00249},

  journal      = {Inorganic Chemistry},

  number       = 6,

  volume       = 57,

  place        = {United States},

  year         = {2018},

  month        = {3}

}

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https://doi.org/10.1021/acs.inorgchem.8b00249

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Cited by: 6 works

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Figure 1: (Left) Polyhedral representation of Ba₄Ni_1.94Ir_2.06O₁₂ with Ni(II) shown in light green, Ni(IV) shown in dark green, Ir(V) shown in grey, Ba shown in blue and O shown in red. (Right) Local coordination environment of Ni(IV) octahedra, shown in dark green, face shared to two distorted Ir(V) octahedra, shownmore »

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Works referenced in this record:

Observation of a d-wave gap in electron-doped Sr2IrO4
journal, October 2015

Kim, Y. K.; Sung, N. H.; Denlinger, J. D.
Nature Physics, Vol. 12, Issue 1
DOI: 10.1038/nphys3503

Mott physics and band topology in materials with strong spin–orbit interaction
journal, March 2010

Pesin, Dmytro; Balents, Leon
Nature Physics, Vol. 6, Issue 5
DOI: 10.1038/nphys1606

Spin-Liquid State in the $S = 1 / 2$ Hyperkagome Antiferromagnet ${Na}_{4} {Ir}_{3} O_{8}$
journal, September 2007

Okamoto, Yoshihiko; Nohara, Minoru; Aruga-Katori, Hiroko
Physical Review Letters, Vol. 99, Issue 13
DOI: 10.1103/PhysRevLett.99.137207

Pressure Tuning of the Spin-Orbit Coupled Ground State in ${Sr}_{2} {IrO}_{4}$
journal, July 2012

Haskel, D.; Fabbris, G.; Zhernenkov, Mikhail
Physical Review Letters, Vol. 109, Issue 2
DOI: 10.1103/PhysRevLett.109.027204

Spin-orbit coupling in iridium-based 5 $d$ compounds probed by x-ray absorption spectroscopy
journal, November 2012

Clancy, J. P.; Chen, N.; Kim, C. Y.
Physical Review B, Vol. 86, Issue 19
DOI: 10.1103/PhysRevB.86.195131

Tuning Magnetic Coupling in ${Sr}_{2} {IrO}_{4}$ Thin Films with Epitaxial Strain
journal, April 2014

Lupascu, A.; Clancy, J. P.; Gretarsson, H.
Physical Review Letters, Vol. 112, Issue 14
DOI: 10.1103/PhysRevLett.112.147201

New material for probing spin-orbit coupling in iridates
journal, April 2015

Phelan, Brendan F.; Krizan, Jason; Xie, Weiwei
Physical Review B, Vol. 91, Issue 15
DOI: 10.1103/PhysRevB.91.155117

Spin-Orbit Physics Giving Rise to Novel Phases in Correlated Systems: Iridates and Related Materials
journal, March 2016

Rau, Jeffrey G.; Lee, Eric Kin-Ho; Kee, Hae-Young
Annual Review of Condensed Matter Physics, Vol. 7, Issue 1
DOI: 10.1146/annurev-conmatphys-031115-011319

Structure and Properties of Ir-Containing Oxides with Large Spin–Orbit Coupling: Ba ₂ In _{2– x} Ir _x O _5+δ
journal, March 2016

Flynn, Joshua; Li, Jun; Sleight, Arthur W.
Inorganic Chemistry, Vol. 55, Issue 6
DOI: 10.1021/acs.inorgchem.5b02501

Synthesis, Structure, and Unexpected Magnetic Properties of La ₃ Re ₂ O ₁₀
journal, September 2007

Cuthbert, Heather L.; Greedan, John E.; Vargas-Baca, Ignacio
Inorganic Chemistry, Vol. 46, Issue 21
DOI: 10.1021/ic701011r

Synthesis, Crystal Structures, and Magnetic Properties of New 12L-Perovskites Ba ₄ LnRu ₃ O ₁₂ (Ln = Lanthanides)
journal, July 2008

Shimoda, Yuki; Doi, Yoshihiro; Hinatsu, Yukio
Chemistry of Materials, Vol. 20, Issue 13
DOI: 10.1021/cm800708g

Crystal Structures and Characterizations of Mixed Valence 12 l -Perovskites Ba ₄ EuM ₃ O ₁₂ (M = Ru and Ir)
journal, September 2009

Shimoda, Yuki; Doi, Yoshihiro; Wakeshima, Makoto
Inorganic Chemistry, Vol. 48, Issue 20
DOI: 10.1021/ic9009652

Magnetic and electrical properties of quadruple perovskites with 12 layer structures Ba4LnM3O12 (Ln=rare earths; M=Ru, Ir): The role of metal–metal bonding in perovskite-related oxides
journal, September 2010

Shimoda, Yuki; Doi, Yoshihiro; Wakeshima, Makoto
Journal of Solid State Chemistry, Vol. 183, Issue 9
DOI: 10.1016/j.jssc.2010.06.023

Complex 5d Magnetism in a Novel S = 1/2 Trimer System, the 12L Hexagonal Perovskite Ba ₄ BiIr ₃ O ₁₂
journal, October 2013

Miiller, Wojciech; Dunstan, Matthew T.; Huang, Zixin
Inorganic Chemistry, Vol. 52, Issue 21
DOI: 10.1021/ic4014619

Structural Predictions in the ABO3 Phase Diagram
journal, April 1994

Giaquinta, Daniel M.; zur Loye, Hans-Conrad
Chemistry of Materials, Vol. 6, Issue 4
DOI: 10.1021/cm00040a007

Synthesis, Structure, and Magnetic Properties of Sr₂NiOsO₆ and Ca₂NiOsO₆: Two New Osmium-Containing Double Perovskites
journal, November 2005

Macquart, René; Kim, Seung-Joo; Gemmill, William R.
Inorganic Chemistry, Vol. 44, Issue 26
DOI: 10.1021/ic051045+

Flux growth and characterization of Sr2NiWO6 single crystals
journal, July 2015

Blum, C. G. F.; Holcombe, A.; Gellesch, M.
Journal of Crystal Growth, Vol. 421
DOI: 10.1016/j.jcrysgro.2015.04.004

Crystal growth, structure and magnetic properties of the double perovskites Ln2MgIrO6 (Ln=Pr, Nd, Sm–Gd)
journal, February 2010

Mugavero III, Samuel J.; Fox, Adam H.; Smith, Mark D.
Journal of Solid State Chemistry, Vol. 183, Issue 2
DOI: 10.1016/j.jssc.2009.11.025

Low temperature structural phase transition of Ba3NaIr2O9
journal, March 2009

zur Loye, Hans-Conrad; Kim, Seung-Joo; Macquart, Rene
Solid State Sciences, Vol. 11, Issue 3
DOI: 10.1016/j.solidstatesciences.2008.12.010

Nd ₂ K ₂ IrO ₇ and Sm ₂ K ₂ IrO ₇ : Iridium(VI) Oxides Prepared under Ambient Pressure
journal, November 2008

Mugavero, Samuel J.; Smith, Mark D.; Yoon, Won-Sub
Angewandte Chemie International Edition, Vol. 48, Issue 1
DOI: 10.1002/anie.200804045

The crystal growth and magnetic properties of Ln2LiIrO6 (Ln=La, Pr, Nd, Sm, Eu)
journal, January 2005

Mugavero, Samuel J.; Smith, Mark D.; zur Loye, Hans-Conrad
Journal of Solid State Chemistry, Vol. 178, Issue 1
DOI: 10.1016/j.jssc.2004.10.033

La2.50K1.50IrO7: An example of an member of the [AnBn−1O3n][] family of perovskite-related oxides
journal, October 2005

Mugavero, Samuel J.; Smith, Mark D.; zur Loye, Hans-Conrad
Journal of Solid State Chemistry, Vol. 178, Issue 10
DOI: 10.1016/j.jssc.2005.07.031

The magnetic properties of iridium in mixed-metal oxides
journal, November 1993

Powell, A. V.; Gore, J. G.; Battle, P. D.
Journal of Alloys and Compounds, Vol. 201, Issue 1-2
DOI: 10.1016/0925-8388(93)90864-J

Novel Mixed-Valent (V/VI) Triple Perovskite Ruthenates: Observation of a Complex Low-Temperature Structural and Magnetic Transition
journal, November 2002

Stitzer, Katharine E.; Smith, Mark D.; Gemmill, William R.
Journal of the American Chemical Society, Vol. 124, Issue 46
DOI: 10.1021/ja0271781

Prediction of the crystal structures of perovskites using the software program SPuDS
journal, November 2001

Lufaso, Michael W.; Woodward, Patrick M.
Acta Crystallographica Section B Structural Science, Vol. 57, Issue 6
DOI: 10.1107/S0108768101015282

Electronic structure, local magnetism, and spin-orbit effects of Ir(IV)-, Ir(V)-, and Ir(VI)-based compounds
journal, June 2015

Laguna-Marco, M. A.; Kayser, P.; Alonso, J. A.
Physical Review B, Vol. 91, Issue 21
DOI: 10.1103/PhysRevB.91.214433

Design and Crystal Growth of Magnetic Double Perovskite Iridates: Ln ₂ MIrO ₆ ( Ln = La, Pr, Nd, Sm-Gd; M = Mg, Ni)
journal, April 2016

Ferreira, Timothy; Morrison, Gregory; Yeon, Jeongho
Crystal Growth & Design, Vol. 16, Issue 5
DOI: 10.1021/acs.cgd.6b00121

Ferromagnetism Induced by Substitution of the Iron(IV) Ion by an Unusual High-Valence Nickel(IV) Ion in Antiferromagnetic SrFeO ₃
journal, December 2015

Seki, Hayato; Hosaka, Yoshiteru; Saito, Takashi
Angewandte Chemie International Edition, Vol. 55, Issue 4
DOI: 10.1002/anie.201509195

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Title: Unusual Coexistence of Nickel(II) and Nickel(IV) in the Quadruple Perovskite Ba4Ni2Ir2O12 Containing Ir2NiO12 Mixed-Metal-Cation Trimers

Abstract

Citation Formats

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