V1+xNb1-xIrB2(x≈ 0.1), The First Quaternary Metal-Rich Boride Adopting The Mo2IrB2-Type Structure: Synthesis, Crystal and Electronic Structure and Bonding Analysis
V1+xNb1-xIrB2(x≈ 0.1), The First Quaternary Metal-Rich Boride Adopting The Mo2IrB2-Type Structure: Synthesis, Crystal and Electronic Structure and Bonding Analysis
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V1 xNb1-xIrB2(xâ 0 1),第一个采用Mo2IrB2型结构的四元富金属硼化物:合成、晶体和电子结构以及成键分析
DOI:
10.1002/zaac.201200439
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发表时间:
2013
期刊:
影响因子:
--
通讯作者:
B. P. T. Fokwa
中科院分区:
文献类型:
--
作者:
C. Goerens;B. P. T. Fokwa
Polycrystalline samples and single crystals of the new metal‐rich boride V1+xNb1–xIrB2(x≈ 0.1), were synthesized by arc‐melting the elements in a water‐cooled copper crucible under an argon atmosphere and characterized by X‐ray diffraction and EDX measurements. The crystal structure was refined on the basis of single crystal data. The new phase adopts the Mo2IrB2‐type structure (space groupPnnm, no. 58) with the lattice parametersa= 7.301(7) Å,b= 9.388(9) Å andc= 3.206(5) Å. It is the first quaternary representative of Mo2IrB2‐type structure. The structure contains zigzag B4‐fragments with boron–boron distances of 1.83–1.85 Å. The electronic density of states and crystal orbital Hamilton population (for bonding analysis) were calculated, using the linear muffin‐tin orbital atomic sphere approximation (LMTO‐ASA) method. According to these calculations, this metal‐rich compound should be metallic, as expected. Furthermore, very strong boron–boron interactions are observed in the zigzag B4‐fragment and two significantly different Ir–B interactions are observed in the new phase and the prototype Mo2IrB2.
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影响因子:
3.3
作者:
C. Goerens;B. P. T. Fokwa
通讯作者:
B. P. T. Fokwa
DOI:
--
发表时间:
1998
期刊:
影响因子:
--
作者:
H. Hillebrecht;Martin Ade
通讯作者:
Martin Ade
DOI:
--
发表时间:
1980
期刊:
影响因子:
--
作者:
H. Ku;G. Meisner;F. Acker;D. Johnston
通讯作者:
D. Johnston
影响因子:
4.6
作者:
Z. Malik;O. Sologub;A. Grytsiv;G. Giester;P. Rogl
通讯作者:
P. Rogl
DOI:
10.1007/bf00905170
发表时间:
1972
期刊:
Monatshefte für Chemie / Chemical Monthly
影响因子:
--
作者:
P. Rogl;F. Benesovsky;H. Nowotny
通讯作者:
H. Nowotny