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三核铬配合物[Cr3（μ3-O）（μ-OOCH）6（OOCH）-（H2O）2]·3H2O的晶体结构
Crystal Structure of Trinuclear Chromium Complex [Cr3（μ3-O）（μ-OOCH）6（H2O）2（OOCH）]·3H2O
【摘要】 标题三核铬配合物,C7H17Cr3O20,Mr=577.2,属三斜晶系,空间群P,a=6.654（1）,b=11.129（3）,c=13.906（2）,α=103.2188（3）,β=103.5362（3）,γ=92.0429（3）°;V=970.2（7） 3。Z=2。Dc=1.976g.cm-3。原子位置由直接法（MULTAN-82）和差Fourier法解出,经全矩阵最小二乘法精修,对于2801个I≥3σ（I）的独立衍射点,最后R=0.077。分子结构属于一般三核金属配合物构型,其显著特点是:有一个端基-HCOO单齿配位在一个Cr原子上,形成中性三核铬配合物。
【Abstract】 The title trinuclear chromium complex, C7H17Cr3O20, crystallizes in space group P1 with a = 6. 654(1), 6 = 11. 129(3), c=13. 906(2) (?) ,β=103. 2188(3), γ=103. 5362(3) ,* = 92. 0429 (3)°, Vc=970. 2(7)(?)3, Z = 2, Dc=1. 976g/cm3, Mr = 577. 2. The structure was solved by direct methods (MULTAN-82) and refined by full-matrix least squares techniques to final R = 0. 077 for 2801 reflections [I≥3σ(I)]. The results of the structure determination reveal that there is a terminal -HCOO group rnonodentately is coordinated to Cr(1) atom in the title molecule.
- 【文献出处】 结构化学 ,Chinese Journal of Structural Chemistry , 编辑部邮箱 ,1992年03期
- 【被引频次】5
- 【下载频次】144