Issue 34, 2010

Tailoring microstructures of isopolymolybdates: regular tuning of the ligand spacer length and metal coordination preferences

Abstract

Four new isopolymolybdate compounds based on two kinds of isomers, [CuI2bte][a-Mo3O10] (1), [CuI2btp][b-Mo3O10]·H2O (2), [CuII(bte)1.5(H2O)][γ-Mo8O26]0.5 (3) and [CuII(btp)2(H2O)][β-Mo8O26]0.5·2H2O (4) [bte = 1,2-bis(1,2,4-triazol-1-yl)ethane, btp = 1,3-bis(1,2,4-triazol-1-yl)propane], were obtained under hydrothermal conditions, indicating that isopolymolybdate clusters can be tailored by regular tuning of the spacer length of the flexible ligands and the metal coordination preferences. In compound 1, wave-like a-[Mo3O10]2− chains intersect with [CuI2bte]2+ chains by sharing CuI cations, forming a 3D framework. Compound 2, with a similar 3D structure but different ligand (btp) to 1, is based on linear b-[Mo3O10]2− chains. In compound 3, γ-[Mo8O26]4− chains insert into the rectangular windows of parallel [CuII2bte]4+ sheets and connect them via four CuII–O bonds, leading to a 3D framework. Compound 4 is an unusual 2D→3D polycatenated array of a [CuII(btp)2(H2O)][β-Mo8O26] pillar-layered framework. The thermal stability and luminescent properties of compounds 1–4 were investigated in the solid state.

Graphical abstract: Tailoring microstructures of isopolymolybdates: regular tuning of the ligand spacer length and metal coordination preferences

Supplementary files

Article information

Article type
Paper
Submitted
01 Feb 2010
Accepted
08 Jun 2010
First published
04 Aug 2010

Dalton Trans., 2010,39, 7993-7999

Tailoring microstructures of isopolymolybdates: regular tuning of the ligand spacer length and metal coordination preferences

C. Zhang, H. Pang, Q. Tang, H. Wang and Y. Chen, Dalton Trans., 2010, 39, 7993 DOI: 10.1039/C002037K

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