Structure and elementary properties of the new Ir hollandite Rb 0.17IrO2

Leslie M. Schoop; Jason W. Krizan; Quinn D. Gibson; R. J. Cava

doi:10.1016/j.jssc.2013.10.001

Structure and elementary properties of the new Ir hollandite Rb _0.17IrO₂

Leslie M. Schoop, Jason W. Krizan, Quinn D. Gibson, R. J. Cava

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

We report the synthesis and structural characterization of the new Ir holladite, Rb_0.17IrO₂. Rb_0.17IrO₂ crystallizes in the tetragonal hollandite structure. In contrast to the previously reported monoclinic Ir hollandite K_0.25IrO₂, we do not observe a difference in Ir-O bond lengths in Rb_0.17IrO ₂ and thus find Ir in an average oxidation state of + 3.83. We also report and compare the electronic and magnetic properties of Rb _0.17IrO₂ and K_0.25IrO₂, finding that they are both metallic and Pauli paramagnets further supporting that the electrons are delocalized in the Ir 5d states.

Original language	English (US)
Pages (from-to)	37-41
Number of pages	5
Journal	Journal of Solid State Chemistry
Volume	209
DOIs	https://doi.org/10.1016/j.jssc.2013.10.001
State	Published - 2014

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

Keywords

Hollandites
Iridates
RbIrO

Access to Document

10.1016/j.jssc.2013.10.001

Cite this

@article{69be125b34df4f959dc3934b41577046,

title = "Structure and elementary properties of the new Ir hollandite Rb 0.17IrO2",

abstract = "We report the synthesis and structural characterization of the new Ir holladite, Rb0.17IrO2. Rb0.17IrO2 crystallizes in the tetragonal hollandite structure. In contrast to the previously reported monoclinic Ir hollandite K0.25IrO2, we do not observe a difference in Ir-O bond lengths in Rb0.17IrO 2 and thus find Ir in an average oxidation state of + 3.83. We also report and compare the electronic and magnetic properties of Rb 0.17IrO2 and K0.25IrO2, finding that they are both metallic and Pauli paramagnets further supporting that the electrons are delocalized in the Ir 5d states.",

keywords = "Hollandites, Iridates, RbIrO",

author = "Schoop, {Leslie M.} and Krizan, {Jason W.} and Gibson, {Quinn D.} and Cava, {R. J.}",

note = "Funding Information: This research was supported by the US National Science Foundation , Grant NSF DMR-1005438 . The authors thank the 11-BM team at the Advanced Photon Source for their excellent synchrotron diffraction data. Use of the Advanced Photon Source at Argonne National Laboratory was supported by the U.S. Department of Energy, Office of Basic Energy Sciences , under Contract no. DE-AC02-06CH11357 . ",

year = "2014",

doi = "10.1016/j.jssc.2013.10.001",

language = "English (US)",

volume = "209",

pages = "37--41",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

publisher = "Academic Press Inc.",

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TY - JOUR

T1 - Structure and elementary properties of the new Ir hollandite Rb 0.17IrO2

AU - Schoop, Leslie M.

AU - Krizan, Jason W.

AU - Gibson, Quinn D.

AU - Cava, R. J.

N1 - Funding Information: This research was supported by the US National Science Foundation , Grant NSF DMR-1005438 . The authors thank the 11-BM team at the Advanced Photon Source for their excellent synchrotron diffraction data. Use of the Advanced Photon Source at Argonne National Laboratory was supported by the U.S. Department of Energy, Office of Basic Energy Sciences , under Contract no. DE-AC02-06CH11357 .

PY - 2014

Y1 - 2014

N2 - We report the synthesis and structural characterization of the new Ir holladite, Rb0.17IrO2. Rb0.17IrO2 crystallizes in the tetragonal hollandite structure. In contrast to the previously reported monoclinic Ir hollandite K0.25IrO2, we do not observe a difference in Ir-O bond lengths in Rb0.17IrO 2 and thus find Ir in an average oxidation state of + 3.83. We also report and compare the electronic and magnetic properties of Rb 0.17IrO2 and K0.25IrO2, finding that they are both metallic and Pauli paramagnets further supporting that the electrons are delocalized in the Ir 5d states.

AB - We report the synthesis and structural characterization of the new Ir holladite, Rb0.17IrO2. Rb0.17IrO2 crystallizes in the tetragonal hollandite structure. In contrast to the previously reported monoclinic Ir hollandite K0.25IrO2, we do not observe a difference in Ir-O bond lengths in Rb0.17IrO 2 and thus find Ir in an average oxidation state of + 3.83. We also report and compare the electronic and magnetic properties of Rb 0.17IrO2 and K0.25IrO2, finding that they are both metallic and Pauli paramagnets further supporting that the electrons are delocalized in the Ir 5d states.

KW - Hollandites

KW - Iridates

KW - RbIrO

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U2 - 10.1016/j.jssc.2013.10.001

DO - 10.1016/j.jssc.2013.10.001

M3 - Article

AN - SCOPUS:84887033914

SN - 0022-4596

VL - 209

SP - 37

EP - 41

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

ER -