New triorganotin(IV) complexes of polyfunctional S,N,O-ligands: Supramolecular structures based on π⋯π and/or C–H⋯π interactions
摘要:
A series of new triorganotin(IV) complexes with 4-hydroxy-2-mercapto-6-methylpyrimidine ((LH2)-H-1), 4-hydroxy-2-mercapto-pyrimidine ((LH2)-H-2), 2,4(1H,3H)-pyrimidinedithione ((LH2)-H-3) (Scheme 1) of the type R3SnLSnR3 (R = Me 1, 4, 7; R = Ph 2, 5, 8; R = PhCH2 3, 6, 9) have been synthesized by reactions of triorganotin(IV) chloride and corresponding ligands. All complexes are characterized by elemental analyses, IR spectra and NMR spectra analyses. Among them, complexes 2, 5 and 8 are also characterized by X-ray crystallography diffraction analyses. Significant pi center dot center dot center dot pi stacking, C-H center dot center dot center dot pi interactions and intramolecular hydrogen bonds stabilize these structures. (c) 2006 Elsevier B.V. All rights reserved.