1. Synthesis, structures, and computational studies of methoxydisubstituted bis(salamo)-type homopolynuclear Cu(II) and Co(II) complexes.
- Author
-
Wei, Yu-Xin, Li, Shi-Zhen, Huang, Ying, Wang, Li, and Dong, Wen-Kui
- Subjects
COPPER ,LIGANDS (Chemistry) ,COORDINATION compounds ,X-ray crystallography ,SURFACE analysis ,SCHIFF bases ,ORGANIC solvents - Abstract
Centrosymmetric homopolynuclear Cu(II) and Co(II) chelated complexes, [Cu
2 (L)(H2 O)2 ] (1) and [Co4 (L)(μ-OAc)2 (CH3 OH)4 (OAC )2 ]⋅2CH2 Cl2 (2), were synthesized using a new symmetrical methoxy-disubstituted bis(salamo)-type ligand, H4 L, with Cu(II) and Co(II) salts in organic solvents. Complexes 1 and 2 were structurally characterized by single-crystal X-ray crystallography. The results indicated that 1 is a five-coordinate dinuclear structure containing Cu(II) and 2 is a tetranuclear Co(II) complex with two distinct six-coordinate environments. Furthermore, 1 and 2 pack into three-dimensional and two-dimensional extended networks, respectively. The UV–Vis spectra, IR spectra, and Hirshfeld surface analyses of the complexes were carried out to further characterize the coordination between H4 L and the metal(II) ions. Fluorescence methods were used to interrogate the coordination, where changes in emission with varied amounts of ligand supported solution-phase coordination ratios of H4 L with Cu(II) ion of 1:2 and with Co(II) ion of 1:4, respectively. [ABSTRACT FROM AUTHOR]- Published
- 2023
- Full Text
- View/download PDF