期刊
INORGANIC CHEMISTRY
卷 52, 期 2, 页码 540-542出版社
AMER CHEMICAL SOC
DOI: 10.1021/ic3020404
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资金
- National Science Foundation through the MRSEC Program [NSF DMR-1121053]
- ConvEne-IGERT Program [NSF-DGE 0801627]
- Alexander von Humboldt Foundation
- German Academic Exchange Service
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [0843934] Funding Source: National Science Foundation
Chromium tetraboride [orthorhombic, space group Pnnm (No. 58), a = 474.65(9) pm, b = 548.0(1) pm, c = 286.81(5) pm, and R value (all data) = 0.041], formerly described in space group Immm, was found not to be superhard, despite several theory-based prognoses. CrB4 shows an almost temperature-independent paramagnetism, consistent with low-spin Cr-I in a metallic compound. Conductivity measurements confirm the metallic character.
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