A Series of Inorganic−Organic Hybrid Composite Solids Based on Molybdenum Oxide Chains

Abstract

Six inorganic-organic compounds based on [Mo x O y ] nchains, [Ag 2 (quinoxaline) 2 Mo 4 O 13 ] (1), [Cu 2 (DMPz) 2 Mo 4 O 13 ] (2) (DMPz ) 2,5-dimethylpyrazine), [Cu 2 (4-PBIM) 2 Mo 4 O 13 ] (3) [4-PBIM ) 2-(4-pyridyl)benzimidazole], [Cu(OPBIM)(H 2 O) Mo 3 O 10 ]‚H 2 O (4) [OPBIM ) 2-(2-ol-3-pyridinio)benzimidazole], [Co(3-HPBIM) 2 (H 2 O) 2 Mo 6 O 20 ] (5) [3-HPBIM ) 2-(3-pyridyl)benzimidazolium], [Ni(3-HPBIM) 2 (H 2 O) 2 Mo 6 O 20 ] (6), have been hydrothermally synthesized and characterized by single-crystal X-ray diffraction. Compounds 1 and 2 represent the first two examples of three-dimensional frameworks constructed from [Mo 8 O 26 ] n 4nanion chains integrated by M-L polymeric cation chains. Compounds 3 and 4 reveal the peripheral decorated [Mo 8 O 26 ] n 4nand [Mo 3 O 10 ] n 2none-dimensional chains, respectively. The isostructural compounds 5 and 6 feature two-dimensional networks formed from [Mo 3 O 10 ] 2n 4ninfinite chains linked by [Co(3-HPBIM) 2 ] 4+ fragments. The molybdate chains in compounds 1-3 and 4-6 represent three isomeric forms of [Mo 8 O 26 ] n 4nand two [Mo 3 O 10 ] n 2nchains, respectively.

Self-assembly of polymer and molybdenum oxide into lamellar hybrid materials

“…It was found that these characteristic peaks of CMC tend to be stronger as the content of the organic species increases. Meanwhile, the absorption around 500 cm −1 , which corresponds to inorganic molybdenum oxide [26][27][28], decreases when the composition of organic polymer increases.…”

A new 3D hybrid network based on octamolybdates: The coexistence of common helix and meso-helix

“…In comparison with the pure btb ligand, the origin of the emission for compound 1 can be tentatively attributable to a joint contribution of ligand-to-metal charge transfer (LMCT) (377 nm) and intraligand π* → π transitions of the neutral ligand (ca. 456 nm) [44,45]. What's worth mentioning is that the intensity of the strong emission band of 1 is obvious enhancement, which is attributed to an internal heavy metal effect.…”

2-(4-Pyridinio)benzimidazolium tetrachloridopalladium(II)

“…For related structures, see: Alcade et al (1992); Chen et al (2006); Huang et al (2004); Wang et al (1999).…”