Diorganotin compounds {[R2Sn(ON=CHC6H5)]2O}2 [R=C6H5CH2 (1), 2-FC6H4CH2 (2), 4-FC6H4CH2 (3), 2-ClC6H4CH2 (4), 4-ClC6H4CH2 (5)] were synthesized by the reaction of R2SnO with HON=CHC6H5 in 1∶1 mo-lar ratio in refluxin...Diorganotin compounds {[R2Sn(ON=CHC6H5)]2O}2 [R=C6H5CH2 (1), 2-FC6H4CH2 (2), 4-FC6H4CH2 (3), 2-ClC6H4CH2 (4), 4-ClC6H4CH2 (5)] were synthesized by the reaction of R2SnO with HON=CHC6H5 in 1∶1 mo-lar ratio in refluxing anhydrous benzene or toluene. They were characterized by elemental analysis, IR, 1H NMR and 119Sn NMR spectroscopy. And two sets of 119Sn chemical shifts were observed in the 119Sn NMR spectra of these compounds, indicating the presence of two types of environment around the tin atoms. The crystal structure of compound 1 was determined by X-ray single crystal diffraction analysis. The results showed that the crystal of com-pound 1 belongs to a monoclinic system with space group P21/c and unit cell dimensions: a=1.0718(9) nm, b=1.9666(17) nm, c=2.0480(17) nm, =96.4371(14)? Dc=1.450 g/cm3, Z=2, F(000)=1888, V=4.290(6) nm3, =1.206 mm-1, R1=0.0405, wR2=0.0786. The compound 1 belongs to centrosymmetric dimer structure mode with a four-membered central endo-cyclic Sn2O2 unit in which the bridging oxygen atoms are tri-coordinated. Each bridging oxygen atom also connects with an exo-cyclic tin atom. The endo- and exo-cyclic tin atoms are both five-coordinated, and have coordination geometry of distorted trigonal bipyramid.展开更多
Fourteen bis (substituted silylmethylene)tin arylcarboxylates have been synthesized by the reaction of bis(substituted silylmethylene)tin dichloride with arylcarboxylic acids, and characterized by IR, 1H NMR, 13C NMR,...Fourteen bis (substituted silylmethylene)tin arylcarboxylates have been synthesized by the reaction of bis(substituted silylmethylene)tin dichloride with arylcarboxylic acids, and characterized by IR, 1H NMR, 13C NMR, MS and elemental analysis. The preliminary bioassay tests showed that (RMe2SiCH2)2Sn(OOCAr)2 and (RMe2SiCH2)2 SnCl2 had a good antitumour activity in vitro.展开更多
Three diorganotin compounds containing silicon and their phenanthroline complexes have been synthesized.Their structures were characterized by elemental analsis,IR and NMR(1H,13C).The results indicated that in the com...Three diorganotin compounds containing silicon and their phenanthroline complexes have been synthesized.Their structures were characterized by elemental analsis,IR and NMR(1H,13C).The results indicated that in the complexes the two donor N atoms of the ligand coordinate to Sn atom,gave the struture of six-coordinated distorted octahedron.展开更多
基金Project supported by the National Natural Science Foundation of China (No. 20271025) and the Natural Science Foundation of Shandong Province (No. L2003B01).
文摘Diorganotin compounds {[R2Sn(ON=CHC6H5)]2O}2 [R=C6H5CH2 (1), 2-FC6H4CH2 (2), 4-FC6H4CH2 (3), 2-ClC6H4CH2 (4), 4-ClC6H4CH2 (5)] were synthesized by the reaction of R2SnO with HON=CHC6H5 in 1∶1 mo-lar ratio in refluxing anhydrous benzene or toluene. They were characterized by elemental analysis, IR, 1H NMR and 119Sn NMR spectroscopy. And two sets of 119Sn chemical shifts were observed in the 119Sn NMR spectra of these compounds, indicating the presence of two types of environment around the tin atoms. The crystal structure of compound 1 was determined by X-ray single crystal diffraction analysis. The results showed that the crystal of com-pound 1 belongs to a monoclinic system with space group P21/c and unit cell dimensions: a=1.0718(9) nm, b=1.9666(17) nm, c=2.0480(17) nm, =96.4371(14)? Dc=1.450 g/cm3, Z=2, F(000)=1888, V=4.290(6) nm3, =1.206 mm-1, R1=0.0405, wR2=0.0786. The compound 1 belongs to centrosymmetric dimer structure mode with a four-membered central endo-cyclic Sn2O2 unit in which the bridging oxygen atoms are tri-coordinated. Each bridging oxygen atom also connects with an exo-cyclic tin atom. The endo- and exo-cyclic tin atoms are both five-coordinated, and have coordination geometry of distorted trigonal bipyramid.
文摘Fourteen bis (substituted silylmethylene)tin arylcarboxylates have been synthesized by the reaction of bis(substituted silylmethylene)tin dichloride with arylcarboxylic acids, and characterized by IR, 1H NMR, 13C NMR, MS and elemental analysis. The preliminary bioassay tests showed that (RMe2SiCH2)2Sn(OOCAr)2 and (RMe2SiCH2)2 SnCl2 had a good antitumour activity in vitro.
文摘Three diorganotin compounds containing silicon and their phenanthroline complexes have been synthesized.Their structures were characterized by elemental analsis,IR and NMR(1H,13C).The results indicated that in the complexes the two donor N atoms of the ligand coordinate to Sn atom,gave the struture of six-coordinated distorted octahedron.
