Perfluormethyl-Element-Liganden, XXV [1] Organozinnverbindungen als Reagenzien, IV: Spaltungsreaktionen der Element-Element-Bindung in Komplexen des Typs M(CO)₅ER₂ER′₂ bzw. M(CO)₅ER₂E′R′ mit Trimethylstannan (R, R′ = CH₃, CF₃; E = P, As; E′ = S, Se, Te; M = Cr, Mo) / Perfluoromethyl-Element Ligands, X X V [1] Organotin Compounds as Reagents, IV:Cleavage Reactions of the Element-Element Bond in Complexes of the Type M(CO)₅ER₂ER′₂ and M(CO)₅ER₂E′R′ , Respectively, with Trimethylstannane (R, R′ = CH₃, CF₃; E = P, As; E′ = S, Se, Te; M = Cr, Mo)

Abstract

Abstract The cleavage of element-element bonds in ligands of the type R 2 EER′ 2 and R 2 EE′R′ (R, R′ = CH 3 , CF 3 ; E = P, As; E′ = S, Se, Te) coordinated to M(CO) 5 -fragments (M = Cr, Mo) by Me 3 SnH (Me = CH 3 ) has been studied in some detail by NMR spectroscopic measurements ( 1 H, 19 F). In comparison with the analogous reactions of the free ligands, the rate of reaction is considerably reduced, wheras the cleavage direction is generally retained. Possible reaction intermediates have been synthesized by independent routes and tested under comparable conditions.