Dibromido(1,10-phenanthroline-κN,N')palladium(II).

Area of Science:

• Coordination Chemistry
• Supramolecular Chemistry
• Crystallography

Background:

• Palladium(II) complexes with N-heterocyclic ligands are of interest due to their diverse applications.
• Understanding the solid-state structure and intermolecular interactions is crucial for predicting material properties.

Purpose of the Study:

• To characterize the crystal structure and intermolecular interactions of the palladium(II) complex, [PdBr2(1,10-phenanthroline)].
• To investigate the packing arrangement and metal-metal distances in the solid state.

Main Methods:

• Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
• Analysis of intermolecular contacts, including pi-pi interactions, was performed.

Main Results:

• The palladium(II) ion exhibits a distorted square-planar coordination geometry, bonded to two nitrogen atoms of 1,10-phenanthroline and two bromide ions.
• Significant intermolecular pi-pi interactions were observed between adjacent aromatic rings, with a shortest centroid-centroid distance of 3.680(4) Å.
• The molecules stack in columns parallel to the (101) plane, with a palladium-palladium distance of 4.8466(9) Å.

Conclusions:

• The crystal structure reveals a well-defined coordination environment and notable intermolecular pi-pi stacking.
• The observed stacking arrangement and Pd-Pd distances provide insights into the supramolecular assembly of this palladium complex.