结构化学
結構化學
결구화학
CHINESE JOURNAL OF STRUCTURAL CHEMISTRY
2000年
2期
81-85
,共5页
刘家成%宋友%庄金钟%游效曾%黄小荥%HUANG Zi-Xiang
劉傢成%宋友%莊金鐘%遊效曾%黃小滎%HUANG Zi-Xiang
류가성%송우%장금종%유효증%황소형%HUANG Zi-Xiang
trinickel (Ⅱ) complex,4-amino-3,5-dimethyl-1,2,4-triazole,thiocyanate,crystal structure
Reaction of nickel (Ⅱ) perchlorate with 4-amino-3,5-dimethyl-1,2,4-triaxole(admt)and NG4NCS gave a trinuclear complex Ni3(admtrz)6
(NCS)6·C2H5OH·2H2O,C32H58N30Ni3O3S6.The compound crystallizes in the orthorhombic space group Pbca(#61) with a=13. 551(3) , b=25.146(6), c=16.553(4) A, V=5640(2)A 3, Z=4, Mr=1279.47, Dc=1. 507 g/cm3; μ(Mo-Kα)=12.70 cm-1 and F(000) = 2656. The final refinement with 2543 observed reflections is converged with R= 0. 058 and Rw= 0. 069. In the Ni3 (admt)6 (NCS)6 molecule, the central nickel atom is coordinated in a distorted octahedral environment by four triazole bridges and two thiocyanate bridges. The terminal nickel atoms are in addition coordinated by two thiocyanate and one admtrz ligand, and thus also have a distorted octahedral geometry.Ni-N distances are 2.040(7)-2. 222(7) A, Ni-Ni distances are 3. 411(1) A.
