Germyl bromide

Hydrogen bromide cleaves digermyl tellurium compounds to germyl bromides with elimination of tellurium as hydrogen telluride2. 

Germyl bromide reacts with bis(trimethylgermyl)mercury to exchange either one or both MejGe groups ... 

The reaction of [Mn(CH3)(CO)5] with Na[M(CO)5] (M = Mn, Re) followed by CH3OSO2F gives bimetallic carbene complexes [(CO)sMMn- C(0CH3)(CH3) (C0)4] (90). The reaction of [Mn(CH3)(CO)s] with OH followed by allyl bromide led to the formation of [Mn(i7 -C3H5)(CO)4] and reductive elimination of methane (91) (Scheme 7). The reaction of [Mn(CH3)(CO)5] with germyl lithium species gave anionic compounds [Eq. (28)] which were either isolated as tetraethylammonium salts or al-... 

Reactions of methyllithium or methyl Grignard reagents resulted in the formation of optically active silyl anions which were characterized after hydrolysis and reaction with allyl bromide (243). The observed overall predominant retention of configuration provides evidence for the optical stability of silyl anions. Their first preparation was reported by Sommer and Mason (245) and they appeared configurationally less stable than the chiral germyl anions (31). 

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