Self-assembled pentagonal bipyramidal and skew trapezoidal organotin(IV) complexes of substituted benzoic acids: Their antibacterial, antifungal, cytotoxic, insecticidal and urease inhibition activities
摘要:
Fourteen di- and triorganotin(IV) derivatives with pentagonal bipyramidal and skew trapezoidal geometries have been synthesized and characterized. Dimethylstannyl bis[3-amino-4-chlorophenylcarboxylate] (1), bis[3-amino-4-chlorophenylcarboxylato] tetraethyldistannoxane] (2) and bis[3,5-dinitro-4-chlorophenylcarboxylato] tetra-n-butyldistannoxane (10) are dinuclear and tetranuclear complexes of bidentate ligands. The crystal structure of (1) is dimeric in which each Sn atom is seven coordinated. Study of weak intramolecular Sn center dot center dot center dot O interactions is very important to decide geometry around tin. Furthermore, it has been investigated that these compounds exhibit fairly good antibacterial, antifungal, cytotoxic, insecticidal and antiurease activities. (C) 2011 Elsevier B.V. All rights reserved.