Selective deprotonation of amidinate ligand in lutetium dinitrogen complex [{Cp*{MeC(NiPr)2}Lu}2(μ2-η2:η2-N2)][K(crypt)] (Cp* = (C5Me5)-, crypt = 2,2,2-cryptand) afforded the novel Cp*/enolamido lutetium dinitrogen complex [{Cp*{H2C=C(NiPr)2}Lu}2(μ2-η2:η2-N2)K][K(crypt)]. Due to the skeleton tension, a...