1. Syntheses, crystal structures, Hirshfeld surface analyses and fluorescence of binuclear complexes with unsymmetrical phenol-based compartmental ligands.
- Author
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Sun, Er-Xiang, Fang, Hong-Yan, Jiang, Jing-Jing, and Zhu, Dun-Ru
- Subjects
FLUORIMETRY ,SURFACE analysis ,CRYSTAL structure ,X-ray powder diffraction ,SPACE groups - Abstract
Two new binuclear complexes, [Ni
2 L(OAc)2 (H2 O)]ClO4 ·H2 O·CH2 Cl2 (1) and [Zn2 L(OAc)2 ]ClO4 ·CHCl3 ·0.5C6 H12 (2), have been synthesized by using 2-[N,N-di(2-pyridylmethyl)aminomethyl]-6-(2-imidazolylmethyl)aminomethyl-4-methylphenol (HL) as a ligand. Complexes 1 and 2 have been characterized by FT-IR, powder X-ray diffraction, elemental analysis and single-crystal X-ray diffraction. X-ray crystallographic analyses show that 1 crystallizes in the triclinic P-1 space group, while 2 in the monoclinic C2/c space group. Both Ni1 and Ni2 in 1 are six-coordinate octahedra with a [Ni1O3 N3 ] and [Ni2O4 N2 ] configuration. In 2, the six-coordinate Zn1 cation displays a distorted octahedral [Zn1O3 N3 ] configuration, while the five-coordinate Zn2 cation has a trigonal bipyramidal [Zn2O2 N3 ] geometry. The intermolecular interactions in 1 and 2 have been investigated by 3D Hirshfeld surface analyses and 2D fingerprint plots to show that the prominent interactions are H···H and O···H/H···O contacts in 1 and H···H and Cl···H/H···Cl contacts in 2. Notably, the fluorescence emission of 2 has larger intensity than that of the free HL. [ABSTRACT FROM AUTHOR]- Published
- 2023
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