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

Authors :: Yang, Li-Jing
Song, Wen-Tao
Luo, Yang-Hui
Sun, Bai-Wang
Source :: Inorganic & Nano-Metal Chemistry; 2017, Vol. 47 Issue 4, p493-499, 7p
Publication Year :: 2017
Abstract: Two complexes 1 [Cu(L<subscript>1</subscript>)<subscript>2</subscript>(H<subscript>2</subscript>O)<subscript>2</subscript>]·2H<subscript>2</subscript>O and 2 [Co(L<subscript>2</subscript>)<subscript>2</subscript> (H<subscript>2</subscript>O)<subscript>4</subscript>]·4H<subscript>2</subscript>O formed by hetero N- and O-donor ligands 1-methyl-3-imidazole-4-carboxylic acid (L<subscript>1</subscript>H) and 2-methyl-5-pyridine carboxylic acid (L<subscript>2</subscript>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. [ABSTRACT FROM AUTHOR]

Subjects :: CRYSTAL structure
CARBOXYLATES
COPPER compounds
THERMAL properties
CRYSTAL surfaces
HYDROGEN bonding interactions
ATOMS

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