Two 2D Co(II)/Mn(II) coordination polymers based on the quinoline-2,3-dicarboxylate ligand: synthesis, crystal structure, and fluorescence properties
Author:
Zhao Ya-Li1, Weng Qi-Ying2, Xie Yu-Qian2, Li Jia-Ming2ORCID
Affiliation:
1. College of International Studies, Beibu Gulf University , Qinzhou , Guangxi , 535011 , P. R. China 2. Qinzhou Key Laboratory for Development and Application of High Performance Functional Materials , College of Petroleum and Chemical Engineering, Beibu Gulf University , Qinzhou , Guangxi , 535011 , P. R. China
Abstract
Abstract
A pair of two-dimensional (2D) isostructural coordination polymers (CPs), {[Co(2,3-qldc)(H2O)]}
n
(1) and {[Mn(2,3-qldc)(H2O)]}
n
(2), where 2,3-H2qldc = quinoline-2,3-dicarboxylic acid, were hydrothermally synthesized and characterized through IR spectroscopy, elemental and thermal analysis, power X-ray diffraction, and single-crystal X-ray diffraction. The results have revealed that the fully deprotonated 2,3-H2qldc ligand connects the Co(II)/Mn(II) atoms with a μ
3-bridge to form a square-wave 2D network, which is further extended into 3D stacks through O–H···O, C–H···O hydrogen bonds and π···π stacking interactions. Topologically, 1 or 2 can be simplified as a 4-connected
sql
type with a Schläfli symbol {44·62} and a Shubnikov tetragonal plane net, or as a 3-connected
fes
type with a Schläfli symbol {4·82} and a Shubnikov plane net. The thermal stability and the solid state fluorescence properties of 1 and 2 were investigated.
Publisher
Walter de Gruyter GmbH
Subject
General Chemistry
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