Di-μ-oxido-bis[bis(diisopropylacetamidinato)-κN;κ2 N,N′-germanium(IV)]

Di-μ-oxido-bis[bis(diisopropylacetamidinato)-κN;κ2 N,N′-germanium(IV)]
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二-γ-氧化-双[双(二异丙基乙脒)-γN;γ2 N,Nβ-锗(IV)]

DOI:
10.1107/s1600536813032133
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发表时间:
2013
期刊:
Acta Crystallographica Section E: Structure Reports Online
影响因子:
--
通讯作者:
Frank T. Edelmann
Frank T. Edelmann
中科院分区:
--
文献类型:
--
作者:
Ronny Syre;Nancy Frenzel;Cristian-G. Hrib;Edmund P. Burte;Frank T. Edelmann

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标题化合物,[Ge 2(C8 H 17 N2)4 O2],结晶与强加的双重对称性,这使得单齿脒基配体以顺式方式排列。中心Ge_2O_2环内的独立Ge-O距离(r.m.s.偏差= 0.039 μ m)分别为1.7797(8)和1.8568(8)μ m。    锗中心采用扭曲的三角双锥几何形状,由两个O原子和一个双齿和一个单齿脒基配体(三个N原子)协调。一个N-异丙基在两个位置上是无序的;这些位置是相互排斥的,因为等价的甲基之间的“碰撞”,因此每个位置都有0.5的占有率。
The title compound, [Ge2(C8H17N2)4O2], crystallizes with imposed twofold symmetry, which allows the monodentate amidinate ligands to be arranged in a cisoid fashion. The independent Ge—O distances within the central Ge2O2 ring, which is essentially planar (r.m.s. deviation = 0.039 Å), are 1.7797 (8) and 1.8568 (8) Å. The germanium centres adopt a distorted trigonal–bipyramidal geometry, being coordinated by the two O atoms and by one bidentate and one monodentate amidinate ligand (three N atoms). One N-isopropyl group is disordered over two positions; these are mutually exclusive because of `collisions' between symmetry-equivalent methyl groups and thus each has 0.5 occupancy.
DOI: 10.1002/anie.201205570
发表时间: 2012-01-01
影响因子: 16.6
作者:
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通讯作者: Hartwig, John F.
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