结构化学
結構化學
결구화학
CHINESE JOURNAL OF STRUCTURAL CHEMISTRY
2004年
6期
535-538
,共4页
何瑞娟%杨智%赵晨%王积涛%唐良富
何瑞娟%楊智%趙晨%王積濤%唐良富
하서연%양지%조신%왕적도%당량부
bis(pyrazol-1-yl)methane%organotin(Ⅳ)%tungsten%X-ray structure
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 P1 with a = 9.755(3), b = 13.696(4), c = 14.359(5) A, α = 96.202(7), β= 93.313(6), γ=94.845(6)°, V = 1896(1) A3, Z = 2, Dc = 1.571 g/cm3, λ(MoKα) = 0.71073 A, μ= 3.728 mm-1,F(000) = 881, R = 0.0491 and wR = 0.0856 for 4242 observed reflections (I≥2σ(I)). The crystalstructural 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.
