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[(DPEPhos)(bcp)Cu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst
Published on: May 21, 2019
Bis(2,1,3-benzoselenadiazole-κN)dibromidocopper(II)
Acta Crystallographica. Section E, Structure Reports Online
|April 28, 2011
Summary
This study details the crystal structure of a copper(II) complex, [CuBr2(C6H4N2Se)2], revealing a distorted square-planar geometry. The complex forms 2D arrays through intermolecular interactions and hydrogen bonds.
Area of Science:
- Inorganic Chemistry
- Crystal Engineering
- Coordination Chemistry
Background:
- Metal-organic complexes offer diverse structural and electronic properties.
- 2,1,3-benzoselenadiazole is a versatile ligand in coordination chemistry.
- Understanding intermolecular interactions is key to designing functional materials.
Purpose of the Study:
- To characterize the crystal structure of the novel copper(II) complex, [CuBr2(C6H4N2Se)2].
- To investigate the coordination geometry and ligand arrangement around the copper ion.
- To analyze the intermolecular interactions governing crystal packing.
Main Methods:
- Single-crystal X-ray diffraction analysis was performed.
- The coordination environment of the Cu(II) ion was determined.
- Intermolecular contacts (Se⋯Br, Se⋯N, N⋯N, C-H⋯Br) were identified and analyzed.
Main Results:
- The copper(II) ion exhibits a distorted square-planar geometry, coordinated by two bromide anions and two nitrogen atoms.
- The 2,1,3-benzoselenadiazole ligands are essentially planar and approximately coplanar.
- Short intermolecular Se⋯Br, Se⋯N, and N⋯N interactions, along with C-H⋯Br hydrogen bonds, were observed.
Conclusions:
- The title complex, [CuBr2(C6H4N2Se)2], displays a unique coordination geometry and ligand orientation.
- Intermolecular interactions play a crucial role in assembling the complex into 2D arrays.
- This structural insight contributes to the understanding of crystal engineering with selenium-containing ligands.
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