Synthesis and structural features of 1,3,2,5-dioxaboraphosphorinane complexes with Pt(II) and Pd(II) salts
摘要:
Complexes of composition L2MCl2 [M = Pt, R = H (I), Me (II), Ph (III)] and LMCl2 [M = Pd, R = H (IV)] are prepared by reaction of 4,6-R2-2,5-diphenyl-1,3,2,5-dioxaboraphosphorinanes (L) with MCl2. Far-IR and P-31 NMR spectroscopy are used to demonstrate that I is cis whereas II and III are trans complexes in the solid. The conformational behavior of I is studied by P-31 and H-1 NMR. The asymmetric form of I exhibits anomalous stability.