Mixed distannoxane dimers [ClR2SnOSnR'2Cl]2 were synthesized by the reaction of R2SnO (R = Bu, Pr) and R2SnCl2 (R = Me, Ph, Cy, Oct). The crystal structures of compound 1 and 5 show they are ladder-type dimers th...Mixed distannoxane dimers [ClR2SnOSnR'2Cl]2 were synthesized by the reaction of R2SnO (R = Bu, Pr) and R2SnCl2 (R = Me, Ph, Cy, Oct). The crystal structures of compound 1 and 5 show they are ladder-type dimers that contain a central planar Sn2O2 four-membered ring. Both endo- and exo-Sn atoms are five-coordinate.展开更多
Three distannoxane dimers [(PhCH 2) 2(Cl)SnOSn(X)(CH 2Ph) 2] 2 (X=Cl, OMe, OEt) were prepared by the hydrolytic reaction of (PhCH 2) 2SnCl 2 with sodium alkoxides. The compounds are assigned tetranuclear dista...Three distannoxane dimers [(PhCH 2) 2(Cl)SnOSn(X)(CH 2Ph) 2] 2 (X=Cl, OMe, OEt) were prepared by the hydrolytic reaction of (PhCH 2) 2SnCl 2 with sodium alkoxides. The compounds are assigned tetranuclear distannoxane structures in solid state, which contain the so called ladder arrangement with a central planar Sn 2O 2 four membered ring. The endo and exo cyclic Sn atoms are both five coordinate, and have distorted trigonal bipyramidal geometries. A variety of hydrolyses of (PhCH 2) 2SnCl 2 were performed and these dimers were characterized by IR, 1H NMR spectroscopy and X ray diffraction analysis.展开更多
基金This work was supported by the National Natural Science Foundation of China(No. 29972025).
文摘Mixed distannoxane dimers [ClR2SnOSnR'2Cl]2 were synthesized by the reaction of R2SnO (R = Bu, Pr) and R2SnCl2 (R = Me, Ph, Cy, Oct). The crystal structures of compound 1 and 5 show they are ladder-type dimers that contain a central planar Sn2O2 four-membered ring. Both endo- and exo-Sn atoms are five-coordinate.
文摘Three distannoxane dimers [(PhCH 2) 2(Cl)SnOSn(X)(CH 2Ph) 2] 2 (X=Cl, OMe, OEt) were prepared by the hydrolytic reaction of (PhCH 2) 2SnCl 2 with sodium alkoxides. The compounds are assigned tetranuclear distannoxane structures in solid state, which contain the so called ladder arrangement with a central planar Sn 2O 2 four membered ring. The endo and exo cyclic Sn atoms are both five coordinate, and have distorted trigonal bipyramidal geometries. A variety of hydrolyses of (PhCH 2) 2SnCl 2 were performed and these dimers were characterized by IR, 1H NMR spectroscopy and X ray diffraction analysis.
