Synthesis, characterization, and optical properties of four coordination polymers with 3, 5-dicarboxy-1-(4-cyanobenzyl)pyridin-1-ium bromide. (15th July 2022)

• Record Type: Journal Article
• Authors: Kaya, Meltem; Demir, Sevde; Arıcı, Mürsel; Wriedt, Mario; Yeşilel, Okan Zafer
• Is Part Of: Polyhedron. Volume 221(2022)
• Publication Date: 2022-07-15
• Subjects: 3, 5-Dicarboxy-1-(4-cyanobenzyl)pyridin-1-ium complexes -- Zwitterionic ligand -- Coordination polymers; Chemistry, Inorganic -- Periodicals; Chimie inorganique -- Périodiques; Organometaalverbindingen; Anorganische chemie; 546.05
• DOI: 10.1016/j.poly.2022.115863
• Languages: English
• ISSNs: 0277-5387

Abstract

Graphical abstract: Four coordination polymers based on a new 3, 5-dicarboxy-1-(4-cyanobenzyl)pyridin-1-ium bromide (H2 cbpyBr) were synthesized and characterized.Complexes 1, 2 and 4 displayed 1D structures while complex 3 exhibited 3D coordination polymer with 6 6 -dia topology.The optical band gap energies for complexes 1 –4 were calculated using the Kubelka–Munk function. Thermal properties of the compounds were investigated. Abstract: Four coordination polymers based on a new 3, 5-dicarboxy-1-(4-cyanobenzyl)pyridin-1-ium bromide (H2 cbpyBr), formulated as {[Mn(µ-cbpy)2 ]·2H2 O}n (1), {[Co(µ-cbpy)2 ]·2H2 O}n (2), {[Cu(µ-cbpy)2 ]·H2 O}n (3) and {[Zn3 (µ-cbpy)6 ]·6H2 O}n (4) were synthesized and characterized by X-ray single-crystal, IR spectroscopy, powder diffraction, and elemental analysis. X-ray diffraction analysis revealed that isostructural complexes 1, 2, and 4 displayed 1D structures while complex 3 exhibited 3D coordination polymer with 6 6 -dia topology. In complexes 1, 2, and 4, the adjacent 1D chains were further assembled by π⋯π and CN, π interactions into the 3D supramolecular framework. Furthermore, optical properties for the compounds were calculated and thermal behaviors of all the complexes were studied in the temperature range of 30 to 1000 °C.