Synthesis, characterization, and crystal and molecular structures of caesium N-(carbamoylethyl)iminodiacetatooxoperoxovanadate(V) monohydrate
作者:L'ubomír Kuchta、Michal Sivák、Jaromír Marek、František Pavelčík、Marian Časný
DOI:10.1039/a804838j
日期:——
dynamic heating in that interval. The X-ray structure analysis of Cs[VO(O2)(CEIDA)]·H2O revealed a mononuclear structure of the complex anion with a typical distorted pentagonal bipyramidal arrangement around vanadium formed by two peroxo oxygens bound in an η2-fashion, two oxygens from the deprotonated carboxylic groups and a nitrogen in the equatorial plane, and an oxo ligand and an oxygen from the carbamoyl
制备了组成为Cs [VO(O 2)(CEIDA)]·H 2 O [其中H 2 CEIDA为N-(氨基甲酰基乙基)亚氨基二乙酸]的钒(V)的一元过氧配合物。和51 V NMR光谱。热分析表明,释放出结晶水后,形成了无水Cs [VO(O 2)(CEIDA)],该无水Cs [VO(O 2)(CEIDA)]在相对较大的温度范围内稳定,并且可以通过中断该时间间隔中的动态加热来隔离。Cs [VO(O 2)(CEIDA)]·H 2的X射线结构分析Ó揭示了复杂的阴离子的单核结构具有典型的扭曲五边形双锥围绕钒由两个过氧在η结合的氧形成排列2 -时尚,从去质子化的羧基基团和在赤道面的氮和氧代配位体两个氧在顶端位置有一个来自氨基甲酰基的氧。因此,杂配体作为四齿CEIDA(2-)- N,O,O,O配体结合形成一个六元环和两个甘氨酸环。