Interesting Weak Interactions in Three Silver Coordination Polymers Based on Tetrafluorobenzenedicar

• 作 者: 刘淑芹 李晓娟 狄玲 丁保君 张建军
• 机 构: Chemistry College,Dalian University of Technology,
• 出 处: 结构化学
• 发表日期: 2013年07期
• 关键词: chains supramolecular connect assembly assemble Hydrogen bonds carboxylate benze

The assembly reactions of o- (or m-, or p-) tetrafluorobenzenedicarboxylic acid (denoted as o-H2L, m-H2L and p-H 2 L, respectively), benzonitrile and Ag+ ion led to three compounds: [Ag2(PhCN)2(o-HL)2]n (1), [Ag2(PhCN)2(m-HL)2]n (2) and [Ag2(PhCN)2(p-L)]n (3). 1 and 2 feature a 1D coordination chain, while 3 bears a 2D net structure. A variety of weak interactions are observed in the compounds. Strong-interactions connect the 1D chains into a 3D supramolecular network in 1. Hydrogen bonds connect the chains into layers in 2. Three types of interesting π-π interactions also assemble the 2D layers into a 3D overall structure in 3.

The assembly reactions of o- (or m-, or p-) tetrafluorobenzenedicarboxylic acid (denoted as -H2L, m-H2L and pH 2 L, respectively), benzonitrile and Ag + ion led to three compounds: [Ag2 (PhCN) 2 (o-HL) 2] n (1), [Ag2 (PhCN) 2 (m-HL) 2] n (2) and [Ag2 (PhCN) 2 (pL)] n 1D coordination chain, while 3 bears a 2D net structure. A variety of weak interactions are observed in the compounds. Strong-interactions connect the 1D chains into a 3D supramolecular network in 1. Hydrogen bonds connect the chains into layers in 2. Three types of interesting π-π interactions also assemble the 2D layers into a 3D overall structure in 3.