作者:Paul D. Smith、Robert E. Berry、Spencer M. Harben、Roy L. Beddoes、Madeleine Helliwell、David Collison、C. David Garner
DOI:10.1039/a703683c
日期:——
where the asymmetric unit consists of a Ca2V2 box-like configuration. The Ca and V metal ions are bridged to one another via a series of unidentate and bidentate carboxylate groups from H3hidba, extending throughout the lattice framework. The novel interaction between Ca2+ ions and Amavadin-style complexes has been further illustrated in the crystal structure of [Ca(H2O)5][V(hida)2]·H2O (H3hida = N-hydroxyiminodiacetic
由氯化羟铵和2-溴丁酸合成了新的前配体内消旋体-2,2'-(羟基亚氨基)二丁酸(R,S -H 3 hidba)。H的反应3 hidba与[VO(乙酰丙酮)2 ](ACAC =乙酰)得到配合物[V([R ,小号-hidba)2 ] 2- 1,这是在钙的存在下结晶2+选自H离子2 O为蓝色片状晶体。X射线晶体学证实了与阴离子Amavadin相同的,独特的八坐标结构,即钒(IV)绑定在伞形毒蕈蘑菇中。1的晶体结构包含一个连接的Ca和V中心的网络,其中不对称单元由Ca 2 V 2盒状结构组成。Ca和V金属离子通过来自H 3 hidba的一系列不相同和二齿的羧酸根基团彼此桥接,并延伸到整个晶格框架中。钙之间的相互作用新颖2+离子和Amavadin式配合物已内[Ca(H的晶体结构被进一步示出的2 O)5 ] [V(飞弹)2 ]·H 2 O(ħ 3飞弹= Ñ(2-羟基亚氨基二乙酸)。观察到的2的晶胞排