摘要:
The compound di-n-butylbis(2,4-dihydroxybenzoato)tin(IV), (C4H9)(2)Sn[2,4-(OH)(2)C6H3COO](2) has been synthesized and characterized by elemental analysis, IR and NMR (H-1, C-13 and Sn-119) spectroscopy and X-ray diffraction techniques. The compound is monomeric with the Sn atom existing in a skew-trapezoidal bipyramidal geometry, in which the asymmetrically chelating carboxylate ligands comprise the trapezoidal plane and the butyl groups occupy the axial positions with the C-Sn-C angle 139.0(3)degrees. Both of the oxygen atoms from the hydroxy groups residing on the ligand do not participate in bonding to the tin atom. However, in the crystal lattice, there are intermolecular hydrogen bonds of OH...O' type which bond the related molecules together. (C) 1997 Elsevier Science Ltd.