Solvent-shielding allows the self- assembly of supramolecular 1D barium vanadate chains

被引：13

作者：

Kastner, Katharina ^{[1
]}

Streb, Carsten ^{[1
,2
]}

机构：

[1] Univ Erlangen Nurnberg, Dept Chem & Pharm, D-91058 Erlangen, Germany

[2] Univ Ulm, Inst Inorgan Chem 1, D-89081 Ulm, Germany

来源：

CRYSTENGCOMM | 2013年 / 15卷 / 24期

关键词：

AG-I INTERACTIONS; POLYOXOMETALATE CLUSTERS; BUILDING-BLOCKS; ORGANIC FRAMEWORKS; MOLECULAR GROWTH; VANADIUM-OXIDE; ARCHITECTURES; CHEMISTRY; LIGANDS; HYBRIDS;

D O I：

10.1039/c3ce40536b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A proof of principle study is reported which introduces a new synthetic route for the assembly of 1-dimensional barium-linked polyoxovanadate chains. Bulky coordinating solvents featuring a binding site and a blocking site are employed and allow the controlled linkage of decavanadate clusters, [V10O28](6-), by barium(II) centres. Using the bulky solvent N-methyl-2-pyrrolidone (NMP), it is shown that a complex supramolecular architecture, {[Ba(nmp)(4)(H2O)](2)[H4V10O28]}{[Ba(nmp)(3)(H2O)(2)][H3V10O28]}(2)center dot 2H(2)O center dot 10 NMP}(infinity) (1) can be accessed where mono-and dinuclear barium units link decavanadate clusters into a linear chain. Using N, N-dimethyl formamide (DMF), a less complex architecture, [(Ba(dmf)(4)](2)[H2V10O28] (2), is formed where only dinuclear barium(II) linkages are observed. Theoretical Hirshfeld-analysis of the crystal lattices is used to examine the 'shielding' effect of the bulky ligands. ESI-mass-spectrometric studies give insight into potential fragments formed in solutions of 1 and 2.

引用

页码：4948 / 4955

页数：8

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