Synthesis and Crystal Structure of a Novel Ladder-like Organooxotin Cluster from 2,4,6-Trimethylbenzolic Acid and N-Benzylhydroxylamine

The title complex {[(C6H5CH2)4Sn2(OOCC9H11)(ONHCH2C6H5)]O}2 (C9H11COO= 2,4,6- trimethylbenzolicate) has been synthesized by the reaction of bis-benzyltin oxide with 2,4,6-trimethylbenzolic acid and N-benzylhydroxylamine in 1:1:1 molar radio (C45H47NO4Sn2) and characterized by IR,1H NMR spectra and elemental analysis,and its crystal structure was determined by X-ray diffraction.It crystallizes in monoclinic,space group P21/c with a = 1.5654(5),b = 1.6467(6),c = 1.7433(6) nm,β = 111.729(5)°,Z= 2,V= 4.175(2) nm3,Mr = 903.22,Dc = 1.437g/cm3,μ = 1.238 mm-1,F(000) = 1824,R = 0.0440 and wR = 0.0906.The structure shows that the central tin atom is five-coordinated to assume a distorted trigonal bipyramidal configuration.The compound belongs to centrosymmetric dimer structure with four-membered central endo-cyclic Sn2O2 units in which the bridging oxygen atoms are tri-coordinated.