Tris(trifluoromethyl)tellurate(II), [Te(CF3)3]−, the dimeric bis(trifluoromethyl)chlorotellurate(II), [(CF3)2TeCl]22−, and bis(trifluoromethyl)iodate(I), [I(CF3)2]−: the first hypervalent alkyl [10-Te-3] and [12-Te-4] species and a novel [10-I-2] compound
作者： Natalya V. Kirij , Yurii L. Yagupolskii , Nicola Maggiarosa , Wieland Tyrra , Dieter Naumann
DOI: 10.1016/S0022-1139(01)00524-3
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摘要: Abstract The reactions of (CH 3 ) SiCF /[(CH 4 N]F with Te(CF 2 and CF I, respectively in THF or glyme at −60 °C yield [(CH N][Te(CF ] N][I(CF ]. Both salts were isolated as colorless extremely reactive solids. NMR spectra are discussed; the 1 J F,C coupling constants groups linear TeCF ICF units exhibit high values. Under comparable conditions also CH Cl ambient temperature, anion [(CF TeCl] − formed from , [TAS][(CH SiF ]/(CH SiCl [PNP]Cl, respectively. crystal structure (triclinic; P -1) [TAS] Te(μ-Cl) exhibits dimeric chloro-bridged TeCl units.
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