Synthesis and Characterization of Ba3Mo18O28: A Metal-Metal-Bonded Oligomer Containing Four Trans Edge-Shared Molybdenum Octahedra

Schimek, George L.; Nagaki, Dick A.; McCarley, Robert E.

doi:10.1021/ic00085a009

Cited by 31 publications

(13 citation statements)

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“…Close compositions reported in literature are M x Mo 2 O 4 and M x Mo 4 O 6 with M = K, Ba, Li, Na, In, and Sn. [38][39][40][41] However, neither of these compounds Table I. have similar diffraction patterns nor physical properties as follow.…”

Section: Resultsmentioning

confidence: 90%

Unconventional metallic behavior and superconductivity in the K-Mo-O system

et al. 2010

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Transport properties and magnetization measurements of the K x MoO 2−␦ ͑0 Յ x Յ 0.25͒ compound are reported. The compound crystallizes in the oxygen deficient MoO 2 monoclinic structure with potassium atoms occupying interstitial positions. An unconventional metallic behavior with power-law temperature dependence is related to a magnetic ordering. Superconducting transition with small volume fraction is also observed near 7 K for a sample with low potassium composition.

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Section: Resultsmentioning

confidence: 90%

Unconventional metallic behavior and superconductivity in the K-Mo-O system

et al. 2010

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“…The short bond distance between Mo cations of 2.58 Å small enough to result in direct Mo-Mo bonding, which is supported by the preponderance of molybdenum, as well as other refractory metals such as rhenium, to form direct metal-metal bonds. 186,187 As such, the lattice distorts so as to 16 E. This particular kind of lattice distortion is not limited to cluster units, and has become of particular interest in S = 1 kagome lattice materials. 188,189 An emergent lattice of Mo 3 O 13 clusters acts as frustrated triangular lattice instead of a kagome one, and the trimers in this material contract upon cooling, further pushing this material more towards the triangular lattice limit.…”

Section: Synthetic Herbertsmithite Zncumentioning

confidence: 99%

The Chemistry of Quantum Spin Liquids

Chamorro,

Tran,

McQueen

2020

Preprint

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Quantum spin liquids are an exciting playground for exotic physical phenomena and emergent many-body quantum states. The realization and discovery of quantum spin liquid candidate materials and associated phenomena lie at the intersection of solid-state chemistry, condensed matter physics and materials science and engineering.In this review, we provide the current status of the crystal chemistry, synthetic techniques, physical properties, and research methods in the field of quantum spin liquids.We also highlight a number of specific quantum spin liquid candidate materials and their structure-property relationships, elucidating their fascinating behavior and connecting it to the intricacies of their structures. Furthermore, we share our thoughts on defects and their inevitable presence in materials, of which quantum spin liquids are no exception, which can complicate the interpretation of characterization of these materials, and urge the community to extend their attention to materials preparation and data analysis, cognizant of the impact of defects. This review was written with

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“…The edgesharing condensation of Mo 6 octahedra is observed in the reduced molybdenum oxides where the Mo 6 clusters are edge-bridged by the oxygens. This process leads to columnar bi [4], tri [5], tetra [6] and penta-octahedral [7] oligomers that are observed for example in the series M n-x Mo 4n+2 O 6n+4 (n = 2, 3, 4 and 5). The ultimate step of the edge-sharing-condensation process corresponds to the infinite Mo2Mo4/2 ∞ 1 chain of trans-edge-sharing Mo 6 octahedra that was first observed in NaMo 4 O 6 [8] and subsequently in the isostructural M x Mo 4 O 6 (M = K [9], Ba [10], In [11], Sn [12] or Pb) compounds and in the four other structure-types Sc 0.75 Zn 1.…”

Section: Introductionmentioning

confidence: 99%