【摘 要】
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标题化合物[Ni（tacn）2]2·[Co（dmg）2Cl2]4·4H2O（C56H112Cl8Co4N28Ni2O20）是由NiCl2·6H2O、CoCl2·6H2O、tacn·3HCl和dmg（丁二酮肟）在甲醇溶液中反应而得。结构通过经石墨单色器单
【机 构】
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南开大学化学系,南开大学化学系,南开大学化学系,南开大学化学系,南开大学化学系,南开大学化学系 天津300071,天津300071,天津300071,天津300071,天津300071,天津30007
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标题化合物[Ni（tacn）2]2·[Co（dmg）2Cl2]4·4H2O（C56H112Cl8Co4N28Ni2O20）是由NiCl2·6H2O、CoCl2·6H2O、tacn·3HCl和dmg（丁二酮肟）在甲醇溶液中反应而得。结构通过经石墨单色器单色化的MoKα射线（λ=0.71073A）衍射法测定,共收集到16173个衍射点,其中独立衍射点14816个。解析结果表明,晶体属于三斜晶系,空间群为P1,晶胞参数为a=14.771（4）,b=18.297（5）,c=19.214（5）A,α=118.035（4）,β=97.545（5）,γ=91.273（5）°,V=4523（2）A3,Z=2。Mr=2102.48,Dc=1.544g/cm3,μ（MoKα）=1.435mm-1,F（000）=2176。晶体用直接法解出,经过最小二乘法对原子参数进行修正,最终的偏离因子为R=0.0884,wR=0.2239。分子中[Ni（tacn）2]2+阳离子和[Co（dmg）2Cl2]-阴离子间是通过静电才互作用结合在一起的。
The title compound [Ni (tacn) 2] 2 · [Co (dmg) 2Cl2] 4 · 4H2O (C56H112Cl8Co4N28Ni2O20) was prepared by the reaction of NiCl2 · 6H2O, CoCl2 · 6H2O, tacn · 3HCl and dmg (dimethylglyoxime) in methanol And got it. The structure was determined by the diffraction of MoKα radiation (λ = 0.71073A) monochromated by graphite monochromator. A total of 16,173 diffraction spots were collected, of which 14816 were independent diffraction spots. The analytical results show that the crystal belongs to the triclinic system and the space group is P1. The unit cell parameters are a = 14.771 (4), b = 18.297 (5), c = 19.214 (5) A, = 97.545 (5), γ = 91.273 (5) °, V = 4523 (2) A3, Z = 2. Mr = 2102.48, Dc = 1.544 g / cm3, μ (MoKα) = 1.435 mm-1, F (000) = 2176. The crystal was solved by the direct method and the atomic parameters were corrected by the least square method. The final deviation factor was R = 0.0884 and wR = 0.2239. Molecules in the [Ni (tacn) 2] 2+ cation and [Co (dmg) 2Cl2] - anion by electrostatic interaction only together.
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