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Crystal engineering of a hybrid metal-organic host framework and its single-crystal-to-single-crystal guest exchange using second sphere coordination

机译:混合金属-有机主体框架的晶体工程及其使用第二球配位的单晶至单晶客体交换

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摘要

By means of crystal engineering principles, a new second sphere coordination adduct has been synthesized using charge-assisted hydrogen bonds and self-assembling [CdBr6](4-) and Br- anions with a V-shaped diprotonated cation. The second sphere adduct is homologous to a copper network, forms a host framework with 1D channels and has good thermal stability (200 degrees C) upon guest release. The [CdBr6](4-) anion shows Jahn-Teller distortion as revealed by X-ray crystallography. Guest exchange via a single-crystal-to-single-crystal manner is reported. The guest behavior is different to that of the homologous Cu adduct due to the pore size effect.
机译:根据晶体工程原理,使用电荷辅助氢键和具有V形双质子化阳离子的自组装[CdBr6](4-)和Br-阴离子合成了新的第二球配位加合物。第二个球加合物与铜网络同源,形成具有一维通道的主体框架,并且在客体释放时具有良好的热稳定性(200摄氏度)。 X射线晶体学分析表明,[CdBr6](4-)阴离子显示出Jahn-Teller变形。据报道,通过单晶至单晶的方式来宾交换。由于孔径效应,客体行为与同源Cu加合物的行为不同。

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