19F NMR study of the polarization direction and polarity of tin-hydrogen and tin-transition metal bonds in tris(4-fluorophenyl)stannane and its organometallic derivatives

A series of (4-FC₆H₄)₃SnML _n compounds containing tin-transition metal bonds were synthesized. Based on¹⁹F NMR data for these compounds, (4-FC₆H₄)₃SnSn(C₆H₄F-4)₃, and (4-FC₆H₄)₃SnH, conclusions were drawn concerning the polarization direction and relative polarity of the tin-hydrogen and tin-metal bonds in the above compounds and in the hydrides L _n MH and R₃SnH. It was found that, in the general case, the group electronegativities of the L _n M groups do not vary similarly to the electronegativities of the central metal atoms.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 11, pp. 1933–1937, November, 1994.