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- W2003802248 abstract "Functionally substituted triorganotin halides V–IX of type R2Sn(X)(CH2)2P(O)PhR′ (R = Me, t-Bu; Rt́ = OEt, t-Bu; X = Cl, Br) have been synthesized by halogen cleavage of the corresponding tetraorganotin compounds R2R2Sn(CH2)2P(O)PhR′ (R2 = Me or Ph), I–IV. The solid state structure of Me2Sn (Br) (CH2)2P(O)PhBu-t (IX), determined by X-ray diffraction, shows a distorted trigonal-bipyramidal structure at the tin atom, with intramolecular coordination of the PO group. Spectroscopic data are in agreement with such a structure in solution for compounds V–IX. Upon varying the temperature, concentration or solvent in solutions of compounds V–IX a stereoisomerization is observed. On the basis of NMR 1H, 13C, 31P, 119Sn), IR and conductivity studies, it is suggested that this stereoisomerization involves a hexacoordinated transition state at the tin atom." @default.
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- W2003802248 date "1982-11-01" @default.
- W2003802248 modified "2023-10-11" @default.
- W2003802248 title "Synthesis, molecular structure and stereoisomerization of 2-phosphinyl and 2-phosphonylethyl diorganotin halides" @default.
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- W2003802248 doi "https://doi.org/10.1016/s0022-328x(00)83797-3" @default.
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