The twinned structure of the μ-isopropoxidodiisopropoxido(p-tolylimido)vanadium(V) dimer, twin refinement against CCD area-detector data
The twinned structure of the μ-isopropoxidodiisopropoxido(p-tolylimido)vanadium(V) dimer, twin refinement against CCD area-detector data
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μ-异丙氧基二异丙氧基(对甲基亚氨基)钒(V)二聚体的孪生结构，针对 CCD 面探测器数据的孪生精修
DOI：
10.1107/s0108270199003728
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
G. Koten
中科院分区：
文献类型：
--
作者：
M. Lutz;H. Hagen;A. Schreurs;A. Spek;G. Koten
标题化合物[V 2 (c7h7n) 2 (c3h7o) 6]在三斜空间群P1中结晶为非异向孪晶。孪生操作是围绕倒数[110]方向的两次旋转，导致分裂反射。对这两个双畴的强度分别进行了评估，结构优化得到的总体比为72.6(1):27.4(1)。这种二聚体化合物的分子几何形状与文献中发现的类似钒化合物一致。钒呈扭曲的三角-双锥体结构。该二聚体由两个键长分别为1.8560（13）和2.2151 (13)A的异丙氧基不对称桥接而成。
The title compound, [V 2 (C 7 H 7 N) 2 (C 3 H 7 O) 6 ], crystallizes as a non-merohedrical twin in the triclinic space group P1. The twin operation is a twofold rotation around the reciprocal [110] direction, leading to split reflections. The intensities of both twin domains were evaluated separately and the structure refinement resulted in a population ratio of 72.6(1):27.4(1). The molecular geometry of this dimeric compound is in line with similar vanadium compounds found in the literature. The vanadium is in a distorted trigonal-bipyramidal environment. The dimer is formed by the asymmetric bridging of two isopropoxido groups with bond lengths of 1.8560(13) and 2.2151 (13)A.