A Noncentrosymmetric 3D Coordination Polymer of Metallocalix[4]arene

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• 作者：Yu-Juan Liu ; Jie-Sheng Huang ; Stephen Sin-Yin Chui ; Cheng-Hui Li ; Jing-Lin Zuo ; Nianyong Zhu ; Chi-Ming Che
• 刊名：Inorganic Chemistry
• 出版年：2008
• 出版时间：December 15, 2008
• 年：2008
• 卷：47
• 期：24
• 页码：11514-11518
• 全文大小：338K
• 年卷期：v.47,no.24(December 15, 2008)
• ISSN：1520-510X

文摘

Sequential reaction of a lower-rim functionalized calix[4]arene, 25,27-bis(hydroxycarbonylmethoxy)-26,28-dimethoxy-p-tert-butylcalix[4]arene (H₂L^C4), with K₂CO₃ and CoCl₂·6H₂O in ethanol afforded a 3D coordination polymer [K₃Co₂(L^C4)₃(EtOH)₆]Cl (1). X-ray crystal analysis revealed that 1 features a noninterpenetrated (10,3)-a net structure wherein octahedral Co²⁺ ions serve as the three-connecting nodes and [K(L^C4)]⁻ units function as the bridges between the Co²⁺ ions. The calixarene ligands in 1 adopt a 1,3-alternate conformation, and there are considerable cation−π interactions between the K⁺ ion and the phenyl rings within each [K(L^C4)]⁻ unit.