摘要：

Organostannatranes, RSn(OC2H4)3N, which are pentacoordinated complexes of tin containing an intramolecular dative bond between nitrogen and tin, are prepared by transesterification of RSn(OC2H5)3 and triethanolamine. The compounds are white solids which are monomers in the vapor state and in solution. Pentavalency is confirmed by proton NMR and relative rates of quaternization with methyl iodide. IR and mass spectral data are presented. Evidence for an equilibrium between the pentacoordinated and uncoordinated structure in solution is discussed.

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