Synthesis and Characterization of Organotin(IV) 2,4‐Dinitrophenoxides

Abstract

Complexes of the composition [R₃Sn(DNP)] and [n‐Bu₂SnCl_2 − x(DNP)_x] (R = Ph and Me; x = 1 and 2; DNP = anion of 2,4‐dinitrophenol) have been synthesized by the silver metathesis method, involving the reaction of Ph₃SnCl, Me₃SnCl and n‐Bu₂SnCl₂ with the silver salt of 2,4‐dinitrophenol in tetrahydrofuran at room temperature and were characterized by elemental analyses, conductivity measurements, IR, and ¹H NMR studies. The IR spectral studies suggest a bidentate mode of coordination of phenol in these complexes. Double phenoxides of the type M₂[R₃Sn(DNP)₃] (M = Na and K) have also been obtained by reacting the parent triorganotin(IV) phenoxides with alkali metal derivatives of the phenol in 1:2 molar ratio. Thermal investigations of these complexes depicted quite interesting behaviour, as the decomposition did not yield any residue, contrary to previous reports. The thermal behaviour of these complexes has shown their ability as high‐energy materials.

Acknowledgments

The authors are grateful to Prof. M.S. Hundal, Department of Chemistry, Guru Nanak Dev University, Amritsar, for obtaining the FTIR spectra.