78887-95-3Relevant academic research and scientific papers
On Heterocyclic Systems Containing Tin, IX. Methylphenylstannocanes, Transannular Interactions Sn***O and Sn***S at Asymmetrically Substituted Tin
Draeger, Martin
, p. 1511 - 1514 (2007/10/02)
Methylphenyl oxadithia and trithiastannocane have been synthesized from MePhSnCl2 and the respective disodium dithiolate.The crystal structure of the oxadithiastannocane has been determined (R = 0.0535).The coordination geometry is midway between a tetrahedron and a trigonal bipyramid (equatorial Sn-S 241.4(3) and 240.5(3), Sn-Me 212.7(8) pm; axial Sn-Ph 215.0(6), Sn***O 267.6(6) pm).By using the bond angles this coordination case is inserted in a series of analogous compounds and compared with vibrational data. - Keywords: Tin, Extended Coordination Sphere
UEBER ZINN-HALTIGE HETEROCYCLEN. V. Sn-PHENYL-SUBSTITUIERTE STANNOCANE, UEBERGAENGE VON TETRAEDRISCHER 4-ZU TRIGONAL-BIPYRAMIDALER 5-KOORDINATION
Draeger, Martin,Guttmann, Hans-Juergen
, p. 171 - 182 (2007/10/02)
A complete series of diphenyl and mixed methyl/chlorine/bromine/iodinephenyl substituted oxadithia- and trithiastannocanes has been prepared by reactions between the respective disodium dithiolates and tin dihalides.The 13C NMR chemical shifts of these compounds and the coupling constants J(119Sn-13C) are dependent upon the magnetic anisotropy of the substituents and the bond angles at the tin atom.The crystal structure of 2,2-diphenyl-1,3,6-trithia-2-stannocane has been determined and refined to R=0.039.The environment of Sn is a monocapped tetrahedron (transannular distance Sn...S 324.6(1) pm).This type of coordination, intermediate between a tetrahedron and a trigonal bipyramid, is discussed quantitatively and compared with a series of analogous compounds.The eight-membered ring has the boat-chair conformation.
