Synthesis, properties and X-ray crystal structure of a new heteropolyacid supermolecular charge-transfer complex [(VB1)(2)DMFHPMo12O40 center dot 5DMF]


Autoria(s): Liu SZ; Li JP; Feng XH; Cao ZT; Zhang ZW; Wang Z; Xing Y; Jia HQ; Lin YH
Data(s)

2002

Resumo

The title complex [(VB1)(2)DMFHPMo12O40.5DMF, VB1 = vitamin B-1 (thiamine chloride), DMF = N,N-dimethylformamide] has been synthesized and characterized by elemental analysis, IR, UV-Vis, electron spin resonance, X-ray photoelectron spectroscopy and cyclic voltammetry methods. The X-ray crystal structure revealed that there is one independent molecule in the unit cell of the title complex that contains one mixed-valence heteropolyanion, two VB1+ cations and six DMF molecules. The title complex possesses a centrosymmetrical arrangement in the unit cell, with the P atom at the symmetry center of the heteropolyanion and with eight O atoms surrounding the central P atom, such that two sets of PO4 tetrahedra are formed. The PO4 tetrahedra and MoO66-(7-) octahedra are disordered in the heteropolyanion. The bond distances of P-O-a and Mo=O-d are in the ranges 1.57 (4)-1.70 (4) Angstrom and 1.61 (2)-1.67 (2) Angstrom, respectively.

Identificador

http://ir.ciac.jl.cn/handle/322003/18331

http://www.irgrid.ac.cn/handle/1471x/153843

Idioma(s)

英语

Fonte

Liu SZ;Li JP;Feng XH;Cao ZT;Zhang ZW;Wang Z;Xing Y;Jia HQ;Lin YH.Synthesis, properties and X-ray crystal structure of a new heteropolyacid supermolecular charge-transfer complex [(VB1)(2)DMFHPMo12O40 center dot 5DMF],ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE,2002,58():803-807

Tipo

期刊论文