Cobalt Complexes Appended with para- and meta-Arylcarboxylic Acids: Influence of Cation, Solvent, and Symmetry on Hydrogen-Bonded Assemblies

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• 作者：Girijesh Kumar ; Himanshu Aggarwal ; Rajeev Gupta
• 刊名：Crystal Growth & Design
• 出版年：2013
• 出版时间：January 2, 2013
• 年：2013
• 卷：13
• 期：1
• 页码：74-90
• 全文大小：1330K
• 年卷期：v.13,no.1(January 2, 2013)
• ISSN：1528-7505

文摘

The present work shows the syntheses, structures, and hydrogen-bonding-based self-assembly of Co³⁺ coordination complexes containing appended arylcarboxylic acid groups. The carboxylic acid groups are present at either the para or the meta position of the appended arene ring. Every Co³⁺ coordination complex offers both hydrogen-bond donors (in O鈥揌 groups of arylcarboxylic acid) and acceptors (in C鈺怬_amide groups as well as C鈺怬_acid of arylcarboxylic acid) in a single molecule. As a consequence, all molecules self-assemble in a highly complementary and unique structural fashion via an array of inter- and intramolecular hydrogen bonding. The position of carboxylic acid, presence of cation, type of cation, and solvent of crystallization has significantly affected/altered the self-assembly process of complementary functional groups.