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[(DPEPhos)(bcp)Cu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst
Published on: May 21, 2019
Diazido-bis(propane-1,3-diamine)copper(II).
This study details the crystal structure of a copper(II) complex, [Cu(N(3))(2)(propane-1,3-diamine)(2)], revealing a Jahn-Teller distorted octahedral coordination. Intermolecular hydrogen bonds form layered structures in this novel coordination compound.
Area of Science:
- Inorganic Chemistry
- Crystallography
- Coordination Chemistry
Background:
- Copper(II) complexes are widely studied for their diverse coordination geometries and magnetic properties.
- Jahn-Teller distortion significantly influences the electronic and structural characteristics of transition metal complexes.
- Hydrogen bonding plays a crucial role in the supramolecular assembly of coordination compounds.
Purpose of the Study:
- To elucidate the crystal structure and coordination environment of a novel copper(II) complex.
- To investigate the role of propane-1,3-diamine and azide ligands in the complex's structure.
- To analyze the intermolecular interactions, specifically hydrogen bonding, that dictate the supramolecular architecture.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the precise atomic arrangement.
- Structural analysis focused on the coordination geometry around the central Cu(II) ion.
- Hydrogen bonding networks and resulting supramolecular structures were identified and characterized.
Main Results:
- The copper(II) ion is coordinated in a Jahn-Teller distorted octahedral geometry.
- Propane-1,3-diamine (tn) ligands occupy equatorial positions, while azide anions are in axial positions.
- Intermolecular N-H⋯N hydrogen bonds form various ring motifs (R(2)(1)(6), R(2)(2)(8), R(2)(2)(12), R(4)(2)(8)), leading to a two-dimensional layered structure.
Conclusions:
- The synthesized copper(II) complex exhibits a distorted octahedral coordination sphere influenced by the Jahn-Teller effect.
- The interplay of propane-1,3-diamine and azide ligands, along with hydrogen bonding, results in a stable two-dimensional supramolecular network.
- This structural characterization provides insights into the factors governing the assembly of layered coordination compounds.
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