Polymeric dimethylytterbium and the terminal methyl complex (TptBu,Me)Yb(CH3)(thf)

Pyrophoric redox-sensitive [YbMe2]n is obtained from [Yb{N(SiMe3)2}2]2 and methyllithium and its existence proven by 171Yb CP/MAS NMR spectroscopy and distinct methane elimination reactions.

Synthesis, characterization and crystal structure of a 2-(diethylaminomethyl)indole ligated dimethylaluminium complex

The title compound, [Al(CH3)2(C13H17N2)] (systematic name; {2-[(diethylamino)methyl]indol-1-yl-κ2N,N′}dimethylaluminium), was prepared by methane elimination from the reaction of 2-(diethylaminomethyl)indole and trimethylaluminium. The complex crystallizes readily from a concentrated toluene solution in high yield. The asymmetric unit contains two crystallographically independent molecules. Each molecule has a four-coordinate aluminium atom that has pseudo-tetrahedral geometry. C—H...π interactions link the independent molecules into chains extending along theb-axis direction.