Ionothermal synthesis of a 3D heterometallic coordination polymer based on the rod shaped copper(II)-sodium(I)-carboxylate secondary building units with a pcu topology

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• 作者：Zuo-Juan Xiahou ; Yu-Ling Wang ; Qing-Yan Liu ; Jia-Jia Wei ; Li-Li Chen
• 关键词：Ionothermal synthesis ; Topology ; Heterometallic coordination polymer ; Crystal structure
• 刊名：Inorganic Chemistry Communications
• 出版年：December, 2013
• 年：2013
• 卷：38
• 期：Complete
• 页码：62-64
• 全文大小：739 K

文摘

Compound [(EEIM)NaCu(phth)₂]_n (1) (EEIM = 1,3-diethylimidazolium and phth = terephthalate) was synthesized by using the mixed ionic liquids of 1-ethyl-3-methylimidazolium tetrafluoroborate [EMIM]-BF₄ and chiral 1-ethyl-3-methylimidazolium l-lactate as solvent. The sodium(I) ion deriving from the [EMIM]-BF₄ with a small amount of Na(I) impurity incorporated into the structure is unprecedented. Compound 1 is a 3D anionic framework based on a unique rod shaped heterometallic copper(II)-sodium(I)-carboxylate secondary building unit, exhibiting a distorted pcu-(4¹² 路 6³) topology. It is interesting that the organic template of [EEIM]⁺ cation formed from an in situ reaction acting as extraframework charge-balancing species occupies the 1D rhombic channels of the 3D anionic framework. The roles of the ionic liquid in ionothermal synthesis and crystallization of 1 are briefly discussed.