| Literature DB >> 22725845 |
Qiang Zheng1, Miroslav Kohout, Roman Gumeniuk, Nikolay Abramchuk, Horst Borrmann, Yurii Prots, Ulrich Burkhardt, Walter Schnelle, Lev Akselrud, Hui Gu, Andreas Leithe-Jasper, Yuri Grin.
Abstract
The ternary boron compounds TM(7)TM'(6)B(8) (TM = Ta, Nb; TM' = Ru, Rh, Ir) were prepared by high-temperature thermal treatment of mixtures of the elements. An analysis of the chemical bonding by the electron density/electron localizability approach reveals formation of covalently bonded polyanions [B(6)] and [TM'(6)B(2)]. The cationic part of the structure contains separated TM cations. In agreement with the chemical bonding analysis and band structure calculations, all TM(7)TM'(6)B(8) compounds are metallic Pauli-paramagnets (TM' = Ru, Rh) or diamagnets (TM' = Ir).Year: 2012 PMID： 22725845 DOI： 10.1021/ic201978n
Source DB: PubMed Journal: Inorg Chem ISSN： 0020-1669 Impact factor: 5.165