J. Beckmann et al., New insights in asymmetric tetraorganodistannoxane ladder formation. A NMR-spectroscopic and crystallographic study, Z ANORG A C, 627(3), 2001, pp. 458-464
Citations number
26
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
The syntheses of the asymmetrically substituted tetraorganodistannoxanes [t
-Bu-2(X)SnOSn(Y)(CH2SiMe3)(2)](2) (1, X = Y = OH; 2, X = Cl, Y = OH; 3, X =
Y = Cl) are re ported-and their structures in solution and in the solid st
ate are characterized by multinuclear NMR spectroscopy and single crystal X
-ray analyses. In toluene, the tetrahydroxy-substituted derivative 1 is in
equilibrium with the organotin oxides : cyclo-[t-Bu2Sn{OSn(CH2SiMe3)(2)}(2)
O] (4), cyclo-[(Me3SiCH2)(2)Sn(OSnt-Bu-2)(2)O] (5), and cyclo-(t-Bu2SnO)(3)
, and some additional, undefined species containing pentacoordinated tin at
oms. In contrast, the dihydroxydichlorosubstituted derivative 2 is inert in
solution.