Bromidobis(1,10-phenanthroline-κN,N')copper(II) dicyanamidate

Area of Science:

• Coordination Chemistry
• Crystal Engineering
• Supramolecular Chemistry

Background:

• 1,10-phenanthroline (phen) is a versatile bidentate ligand in coordination chemistry.
• Dicyanamide ([N(CN)2]-) is an interesting anion for constructing coordination polymers and supramolecular networks.
• Copper(I) complexes with nitrogen-containing ligands are relevant in catalysis and materials science.

Purpose of the Study:

• To synthesize and characterize the novel copper(I) complex [CuBr(phen)2][N(CN)2].
• To elucidate the crystal structure and coordination environment of the copper center.
• To investigate the intermolecular interactions stabilizing the crystal lattice.

Main Methods:

• Single-crystal X-ray diffraction analysis.
• Analysis of coordination geometry and bond distances/angles.
• Identification and quantification of non-covalent interactions (hydrogen bonding, π-π stacking).

Main Results:

• The title compound crystallizes as discrete [CuBr(phen)2]+ complex cations and [N(CN)2]- anions.
• The copper(I) ion displays a five-coordinate, distorted trigonal-bipyramidal geometry.
• The crystal structure is stabilized by C-H···N hydrogen bonds and significant π-π stacking interactions between phenanthroline ligands and with the dicyanamide anion.

Conclusions:

• The synthesis and structural characterization confirm the formation of a discrete copper(I) complex.
• The coordination geometry and intermolecular interactions provide insights into the self-assembly of such compounds.
• This work contributes to understanding the structure-property relationships in copper(I) coordination compounds.