Xi-Jie Liu

Technical Institute of Physics and Chemistry, Peping, Beijing, China

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Publications (2)2.96 Total impact

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    ABSTRACT: The diorganotin(IV) complexes of N-(3,5-dibromosalicylidene)--amino acid, R′2Sn(2-O-3,5-Br2C6H2CHNCHRCOO)(where R=H, Me, i-Pr, Bz; R′ =n-Bu, Cy), were synthesized by the reactions of diorganotin dichlorides with in situ formed potassium salt of N-(3,5-dibromosalicylidene)--amino acid and characterized by elemental analysis, IR and NMR (1H, 13C and 119Sn) spectra. The crystal structures of n-Bu2Sn(2-O-3,5-Br2C6H2CHNCHRCOO)(R=i-Pr, Bz) and Cy2Sn(2-O-3,5-Br2C6H2CHNCHRCOO)(R=Me, Bz) were determined by X-ray single crystal diffraction and showed that the tin atoms are in a distorted trigonal bipyramidal geometry to form five- and six-membered chelate rings with the tridentate ligand. Bioassay results indicated that the compounds possess better in vitro antitumour activity against three human tumour cell lines, HeLa, CoLo205 and MCF-7, than cis-platin and moderate anti-bacterial activity against two bacteria, E. coli and S. aureus.
    Chinese Journal of Chemistry 03/2007; 25(3):312 - 318. · 0.92 Impact Factor
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    ABSTRACT: The title compounds, (−)-MenOCOCH2CH2SnClnPh3−n (n=0, 1; 1, 2; 2, 3; 3, 4) and [(−)-MenOCOCH2CH2Sn(OH)Cl2]2·2(C2H5)2O (5·2(C2H5)2O) were synthesized and characterized by means of elemental analysis, IR and NMR (1H, 13C and 119Sn) spectra. The solid-state structures of the compounds 1, 3, 4 and 5·2(C2H5)2O have been determined by X-ray diffraction methods. The tin atom in 1 possesses a distorted tetrahedral geometry with an intramolecular weak CO⋯Sn interaction of 3.342(4)Å. The compounds 3 and 4 have distorted trigonal bipyramidal geometry, in which there is an intramolecular carbonyl-to-tin coordination. The tin atom in 5·2(C2H5)2O approximates to octahedral geometry via an intramolecular carbonyl-to-tin coordination and hydroxo-bridging. The strengths of the interaction between CO and Sn generally increase in the order 1
    Polyhedron 01/2005; 24(15):2027-2034. · 2.05 Impact Factor