Solvothermal Synthesis of a 24-Nuclear, Cube-Shaped Squarato-oxovanadium(IV) Framework: [N(nBu)4 ]8 [V24 O24 (C4 O4 )12 (OCH3 )32 ]

Angew Chem Int Ed Engl. 2001 Nov 5;40(21):4018-4020. doi: 10.1002/1521-3773(20011105)40:21<4018::AID-ANIE4018>3.0.CO;2-7.

Abstract

Polydentate bridging ligands can be used to link small polyoxo-alkoxo-metalate units to form supramolecular clusters. In the title compound, twelve μ4 -bridging squarato groups connect eight trinuclear methoxo-oxo-vanadate units to form a tetradodecanuclear cubic framework, in whose cavity six n-butyl groups of the tetra-n-butylammonium cations are anchored.

Keywords: cage compounds; polyoxometalates; solvothermal synthesis; squarates; structure elucidation; vanadium.