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The helical structure induced by metal–organic complexes: synthesis and characterization of a novel layered vanadate complex containing double helical chains

2004; Elsevier BV; Volume: 707; Issue: 1-3 Linguagem: Inglês

10.1016/j.molstruc.2004.07.011

1872-8014

Dong‐Rong Xiao, Enbo Wang, Haiyan An, Lin Xu, Changwen Hu,

Vanadium and Halogenation Chemistry

Abstract A novel two-dimensional inorganic–organic hybrid vanadate complex [Co(2,2′-bpy) 2 V 3 O 8.5 ] 1 (2,2′-bpy, 2,2′-bipyridine) has been hydrothermally synthesized and characterized by the elemental analyses, XPS spectra, TG analysis, IR spectrum and the single-crystal X-ray diffraction. Crystal data for 1 : monoclinic, space group P 2 1 /c, a =15.612(3) A, b =14.830(3) A, c =10.548(2) A, β =91.90(3)°, V =2440.8(8) A 3 , Z =4, and R 1 [ I >2 σ ( I )]=0.0367. The title compound consists of an unusual two-dimensional vanadate network grafted with [Co(2,2′-bpy) 2 ] 2+ complexes. Moreover, compound 1 contains left-handed and right-handed helical chains, which are built up from only vanadium-oxide building blocks and further interconnected to form the double helical chains.