Syntheses, Characterizations, and Properties of Five Interpenetrating Complexes Based on 1,4-Benzenedicarboxylic Acid and a Series of Benzimidazole-Based Linkers

详细信息    查看全文

• 作者：Qianqian Guo ; Chunying Xu ; Bei Zhao ; Yanyuan Jia ; Hongwei Hou ; Yaoting Fan
• 刊名：Crystal Growth & Design
• 出版年：2012
• 出版时间：November 7, 2012
• 年：2012
• 卷：12
• 期：11
• 页码：5439-5446
• 全文大小：513K
• 年卷期：v.12,no.11(November 7, 2012)
• ISSN：1528-7505

文摘

Five interesting interpenetrating networks, namely, [Co(p-bdc)(beb)_0.5]_n (1), {[Co(p-bdc)(bmb)]路H₂O}_n (2), {[Co(p-bdc)(bmp)]路H₂O}_n (3), {[Zn(p-bdc)(bmp)]路H₂O}_n (4), and [Zn₂(p-bdc)₂(bmp)(H₂O)₂]_n (5) [p-H₂bdc = 1,4-benzenedicarboxylic acid, beb = 1,4-bis(2-ethylbenzimidazol-1-ylmethyl)benzene, bmb = 1,4-bis(2-methylbenzimidazol-1-ylmethyl)benzene, and bmp = 1,5-bis(2-methylbenzimidazol) pentane], have been synthesized by employing mixed ligands of various benzimidazole-based ligands with p-H₂bdc. Complex 1 possesses a 2-fold interpenetrating 3D framework with (4¹²路6³)-pcu topology. Complex 2 exhibits a 3-fold interpenetrating 3D network with 6⁶-dia topology, and complex 3 displays a 4-fold interpenetrating 3D diamond network containing Co/bmp left- and right-handed helical chains. Obviously, with the reducing of the steric hindrance of the N-donor ligand, complexes 1鈥?b>3 show interpenetrating networks from 2-fold to 3-fold and 4-fold. Complex 4 is isostructural to 3 and also forms a 4-connected 3D framework with a diamond topology. Complex 5 features a 3D framework generated by 2D 鈫?3D interpenetration and exhibits (8²路10)₂ topology. Our study shows that the steric hindrance changing of ligands can tune the final interpenetrating networks directly.