Synthesis, spectroscopic and magnetic properties of linear nickel(II) and cobalt(II) trimers containing substituted 1,2,4-triazoles and fluoride as bridging ligands. The X-ray structure of bis [(μ-fluoro)bis(μ-3, 4, 5-trimethyl-1,2, 4-triazole-N1,N2)bis-(thiocyanato-N)(aqua)cobalt(II)-F,N1,N1′,] cobalt(II) tetrahydrate
作者:Frederik J. Rietmeijer、Jaap G. Haasnoot、Adrianus J. Den Hartog、Jan Reedijk
DOI:10.1016/s0020-1693(00)82237-9
日期:1986.3
respectively. The X-ray analysis was done using counter data (3642 significant reflections). The structure was solved by the heavy atom method and refined by full-matrix least- squares methods to a final R of 0.034 (Rw = 0.045). Neighbouring Co(II) ions in the linear trimer are linked by two 1,2-bidentate triazole ligands and one fluoride anion. The coordination sphere of the terminal Co(II) ions is completed
摘要介绍了一系列以Co(II)和Ni(II)为金属离子的三唑和氟桥联三聚体新化合物的制备和性能。这些化合物的通式为M3L4F2(NCS)4(H2O)x,其中L表示3,5-二甲基-1,2,4-三唑(dmtrH,C4H7N3),4-氨基-3,5-二甲基-1, 2,4-三唑(admtr,C4H8N4),3,4,5-三甲基-1,2,4-三唑(tmtr,C5H9N3)和4-氨基-3,5-二乙基-1,2,4-三唑( adetr,C6H12N4)和x = 2–6。[Co3(tmtr)4F2(NCS)4(H2O)2](H2O)4的深红色晶体为单斜晶系,空间群P21 / n,a = 9.834(2),b = 12.106(1),c = 18.657 (2)A,β= 99.60(1)o,V = 2190 A3和Z = 2; 测量和计算的密度分别为1.52(1)和1.52 Mg m-3。X射线分析是使用计数器数