Synthesis, structural characterization and dynamic behavior of Group 12 metals containing the sterically hindered ligand [N(t-Bu)CH(t-Bu)CHN-t-Bu]−
摘要:
The reaction of two molar equivalents of the alkyl-substituted (E)-4-lithio-1,4-diazabut-1-ene, Li[mu -N(t-Bu)CH(t-Bu)CHN-t- Bu], with zinc dichloride, cadmium dibromide, or mercury dibromide in diethyl ether yields zinc M{[mu -N(t-Bu)CH(t-Bu)CHN-t-Bu][N(t-Bu)CH(t-Bu)CHN-t-Bu)}. [M=Zn (1)], cadmium M[mu -N(t-Bu)CH(t-Bu)CHN-t-Bu](2)- [M=Cd (2)], or mercury M ([mu -N(t-Bu)CH(t-Bu)CHN-t-Bu][N(t-Bu)CH(t-Bu)CHN-t-Bu]} [M = Hg (3)]. respectively, as colorless crystals. In the solid state, the central metal of 2 possesses a coordination number of four; compounds 1 and 3 display the rather unusual coordination number of three. (C) 2001 Elsevier Science Ltd. All rights reserved.