Zn(ii) and Cd(ii) coordination polymers with a new angular bis-pyridyl-bis-amide: synthesis, structures and sensing properties. Issue 25 (8th June 2021)

• Record Type: Journal Article
• Authors: Yang, Xiang-Kai; Lee, Wei-Te; Hu, Ji-Hong; Chen, Jhy-Der
• Is Part Of: CrystEngComm. Volume 23:Issue 25(2021)
• Page Start: 4486
• Page End: 4493
• Publication Date: 2021-06-08
• Subjects: Crystals -- Periodicals; Crystal growth -- Periodicals; Crystallography -- Periodicals; Cristaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Cristallographie -- Périodiques; 548
• DOI: 10.1039/d1ce00409c
• Languages: English
• ISSNs: 1466-8033

Abstract

Abstract : Zn(ii ) and Cd(ii ) coordination polymers that show a 2D double layer with the rare (4 6 ·6 4 )-5 L4 topology and a 3D framework with a new (4·5·6)(4 5 ·5 5 ·6 9 ·7·8) topology, respectively, show good selectivity toward the detection of Fe 3+ ions. Abstract : Zn(II) and Cd(II) coordination polymers constructed from a new angular bis-pyridyl-bis-amide ligand and naphthalene-1, 4-dicarboxylic acid (1, 4-H2 NDC), {[Zn2 (L )(1, 4-NDC)2 ]·2H2 O} [L = 4, 4′-oxybis( N -(pyridin-3-ylmethyl)benzamide)], 1, and {[Cd2 (L )(1, 4-NDC)2 ]·EtOH}, 2, have been solvothermally synthesized and structurally characterized by using single-crystal X-ray diffraction. While complex 1 displays a 2D double layer with the rare (4 6 ·6 4 )-5 L4 topology, complex 2 shows a 3D framework with a new (4·5·6)(4 5 ·5 5 ·6 9 ·7·8) topology. Both complexes 1 and 2 display luminescence properties and 2 exhibits a high sensitivity toward the detection of Fe 3+ ions with a K sv value of 1.9 × 10 4 M −1 . The quenching effect can most probably be ascribed to the interactions between the metal ions and the amide carbonyl oxygen atoms.