Two complexes of copper (II) and cobalt (II) with N,O-chelating heterocyclic carboxylates: Crystal structures, Hirshfeld surfaces, and thermal properties

Two complexes 1 [Cu( L 1 ) 2 (H 2 O) 2 ]·2H 2 O and 2 [Co( L 2 ) 2 (H 2 O) 4 ]·4H 2 O formed by hetero N- and O-donor ligands 1-methyl-3-imidazole-4-carboxylic acid ( L 1 H) and 2-methyl-5-pyridine carboxylic acid ( L 2 H) have been synthesized and characterized by elemental analysis and single-crys...

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Bibliographic Details
Published in:Inorganic and nano-metal chemistry 2017-04, Vol.47 (4), p.493-499
Main Authors: Yang, Li-Jing, Song, Wen-Tao, Luo, Yang-Hui, Sun, Bai-Wang
Format: Article
Language:English
Subjects:
Coordinated water
crystal structure
hetero ligands
intermolecular interaction
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Summary:Two complexes 1 [Cu( L 1 ) 2 (H 2 O) 2 ]·2H 2 O and 2 [Co( L 2 ) 2 (H 2 O) 4 ]·4H 2 O formed by hetero N- and O-donor ligands 1-methyl-3-imidazole-4-carboxylic acid ( L 1 H) and 2-methyl-5-pyridine carboxylic acid ( L 2 H) have been synthesized and characterized by elemental analysis and single-crystal X-ray diffraction. These two complexes consist of a 2:1 ratio of ligand to metal ion. The analysis of Hirshfeld surfaces and crystal structures reveal that O‒H···O hydrogen bond interactions and C‒H···π intermolecular interactions support the three-dimensional supramolecular structures of complexes 1 and 2. Meanwhile, the coordinated water molecules and lattice water molecules play a key role in the construction of their crystal structures.
ISSN:2470-1556
2470-1564
DOI:10.1080/15533174.2016.1186048