Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, Campus Universitario de Ciudad Real, 13071-Ciudad Real, Spain.
Chem Commun (Camb). 2013 Oct 7;49(77):8701-3. doi: 10.1039/c3cc44952a.
The complex [Nb(NMe2)2{(NMe2)C=N(t)Bu}{N(2,6-(i)Pr2C6H3)}] reacts with trialkylguanidines and undergoes a room temperature C-N bond cleavage of the iminocarbamoyl moiety. This reaction affords the guanidinate complexes [Nb(NMe2)2{N(2,6-(i)Pr2C6H3)}{(N(i)Pr)2C(NH(i)Pr)}] or [Nb(NMe2)2{N(2,6-(i)Pr2C6H3)}{(N(i)Pr)2C(NH(n)Bu)}] and free isocyanide. The first crystal structure of a niobium iminocarbamoyl complex is reported.
该配合物[Nb(NMe2)2{(NMe2)C=N(t)Bu}{N(2,6-(i)Pr2C6H3)}]与三烷基胍反应，并在室温下发生亚氨基羰基亚胺键的 C-N 键断裂。该反应生成胍盐配合物[Nb(NMe2)2{N(2,6-(i)Pr2C6H3)}{(N(i)Pr)2C(NH(i)Pr)}]或[Nb(NMe2)2{N(2,6-(i)Pr2C6H3)}{(N(i)Pr)2C(NH(n)Bu)}]和游离异氰化物。首次报道了铌亚氨基羰基亚胺配合物的晶体结构。
