摘要
The reaction of triphenylstannyl-bis(3,5-dimethyl-4-ethylpyrazol-1-yl)methane with W(CO)5THF yields the title compound (C37.5H39.5N4O3SnW, Mr = 896.79) which is of triclinic, space group P with a = 9.755(3), b = 13.696(4), c = 14.359(5) , a = 96.202(7), b = 93.313(6), g = 94.845(6)o, V = 1896(1) 3, Z = 2, Dc = 1.571 g/cm3, l(MoKa) = 0.71073 , m = 3.728 mm-1, F(000) = 881, R = 0.0491 and wR = 0.0856 for 4242 observed reflections (I≥2s(I)). The crystal structural analysis indicates that bis(3,5-dimethyl-4-ethylpyrazol-1-yl)methide acts as a tridentate monoanionic k3-[N,C,N] chelating ligand, and four-membered metallacycles are found in this heterodinuclear complex.
The reaction of triphenylstannyl-bis(3,5-dimethyl-4-ethylpyrazol-1-yl)methane with W(CO)5THF yields the title compound (C37.5H39.5N4O3SnW, Mr = 896.79) which is of triclinic, space group P with a = 9.755(3), b = 13.696(4), c = 14.359(5) , a = 96.202(7), b = 93.313(6), g = 94.845(6)o, V = 1896(1) 3, Z = 2, Dc = 1.571 g/cm3, l(MoKa) = 0.71073 , m = 3.728 mm-1, F(000) = 881, R = 0.0491 and wR = 0.0856 for 4242 observed reflections (I≥2s(I)). The crystal structural analysis indicates that bis(3,5-dimethyl-4-ethylpyrazol-1-yl)methide acts as a tridentate monoanionic k3-[N,C,N] chelating ligand, and four-membered metallacycles are found in this heterodinuclear complex.
基金
the National Natural Science Foundation of China (No. 20172029)
