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Dichlorobis(2-chloro-5-methylpyridine-kappaN)copper(II)
Richeng Xuan1, Weixiao Hu, Zhongyu Yang
1College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310023, People's Republic of China. xuanrch@mail.hz.zj.cn
Summary
This study details the crystal structure of a copper(II) chloride complex with pyridine ligands. The compound exhibits square planar geometry and forms 2D molecular networks through hydrogen bonding.
Area of Science:
- Coordination Chemistry
- Crystallography
- Supramolecular Chemistry
Background:
- Copper(II) chloride complexes with nitrogen-containing ligands are of interest due to their diverse structural and electronic properties.
- Understanding the crystal packing and intermolecular interactions is crucial for predicting material properties.
Purpose of the Study:
- To elucidate the crystal structure of the title compound, [CuCl2(C6H6ClN)2].
- To analyze the coordination geometry, bond distances, and intermolecular interactions within the crystal lattice.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
- Analysis of bond lengths, angles, and intermolecular forces (hydrogen bonds) was performed.
Main Results:
- The copper(II) atom is square planar coordinated by two nitrogen atoms from pyridine ligands and two chloride ions in trans positions.
- Cu-N bond lengths are 1.986(2) Å and Cu-Cl bond lengths are 2.2536(11) Å.
- Three types of intermolecular C-H···Cl hydrogen bonds were identified, leading to the formation of 2D molecular networks.
Conclusions:
- The crystal structure of [CuCl2(C6H6ClN)2] reveals a square planar copper(II) center with trans-substituted ligands.
- Intermolecular hydrogen bonding plays a significant role in organizing the crystal structure into two-dimensional networks.