Synthesis and Characterization of an Organothallium-Phosphorus Adduct: Crystal Structure of (Me 3 SiCH 2 ) 3 Tl·P(SiMe 3 ) 3

Abstract

The organothallium phosphorus adduct (Me₃ SiCH₂)₃Tl·P(SiMe₃)₃ (1) was prepared by combining (Me₃SiCH₂)₃Tl and P(SiMe₃)₃ at room temperature. Compound 1 was characterized by ¹H, ¹³C{¹H}, and ³¹P{¹H} NMR, partial elemental analysis, EI mass spectrometry, and single-crystal X-ray analysis, the first to be reported for a thallium-group 15 adduct. Crystal data for 1: trigonal system, space group P 3₁ with a =16.063(6) Å, c = 12.148(3) Å, D_calcd = 1.315 g cm⁻³, and V = 2714.3(11) ų for Z =3. Refinement converged at R =0.042 (R_w =0.045). The Tl-P bond length in 1, previously unreported for compounds of this type, was found to be 1.922(3) Å.