N heterocyclic carbene analogues with low valent group 13 and group 14 elements syntheses, structures, and reactivities of a new generation of multitalented ligands†

... once again with the assistance of theoretical calculations The Raman spectrum of 29 8a was also measured and compared with the silicon analogue.297 These studies are all based on the unsaturated and. .. General structures of group 14 element(II) Nheterocycles Low-Valent Group 13 and 14 NHC Analogues Scheme appear to be of great importance because analogues with isopropyl and cyclohexyl groups... [{(tmeda)KGa(Ar-DAB)}2], 61 [{(Et2O)KGa(Ar-DAB)}2], 62 [Mg(THF)3{Ga(Ar-DAB)}2], 67 [Mg(DipNacnac)(κ1-tmeda){Ga(Ar-DAB)}], 68 [Ca(THF)4{Ga(Ar-DAB)}2], 69 [M(tmeda)2{Ga(Ar-DAB)}2] (M ) Ca, Sr or Ba),