Germylone-bridged bimetallic Ir and Rh complexes

Abstract

The reactions of germylone 1 with one equivalent of [M(COD)Cl]2 (M = Ir, Rh) afforded the germylone-bridged bimetallic complexes 2 and 3, which have been spectroscopically and structurally characterized.

(N,N′-Di-tert-butyl-S-phenylsulfinimidamidato-κN,κN′)-chlorogermanium-κGe-chloro(η2,η2-cycloocta-1,5-diene)rhodium

“…The rhodium atom exhibits a distorted planar square geometry. The Ge-Rh bond length [2.3924( 4) Å] of 2, which lies within the range of previously reported germylene-Rh(I) complexes [2.3366(9)-2.4499( 8) Å] [34][35][36][37][38][39]. The Ge-Cl bond length [2.2620( 6) Å] of 2 is somewhat shorter than that of the starting 1 [2.3498(19) Å] [33].…”

Heavier element-containing aromatics of [4n+2]-electron systems

“…The ligand behaviours of 5CNGe11 towards transition metals have also been examined. 134,135 Treatment of 5CNGe11 with M(CO)5(thf) (M = Cr, Mo, W) resulted in the formation of the corresponding germylone-metal complexes 5CNGe11-M(CO)5 (Scheme 3-24 C). Germylone-bridged bimetallic Ir and Rh complexes 5CNGe11-(M(cod)Cl)2 were synthesized by the reaction of 5CNGe11 with one equivalent of [M(COD)Cl]2 (M = Ir, Rh) (Scheme 3-24 D).…”

Base-stabilized formally zero-valent mono and diatomic molecular main-group compounds

“…The molecular structure reveals that complex 130 contains two germylone units and three Rh metals featuring a Rh-Ge-Rh-Ge-Rh chain (Scheme 38). 142,143 The strong σ-donation ability of NHSi is well known. 18 The Driess group utilized a bis-NHSi donor and Fe(CO) 4 -acceptor to isolate germylone (132) (Scheme 39).…”