[1,2-Bis-(diisopropyl-phosphan-yl)ethane-κP,P']dichloridonickel(II)

Area of Science:

• Inorganic Chemistry
• Crystallography
• Coordination Chemistry

Background:

• Nickel(II) complexes with phosphine ligands are important in catalysis and materials science.
• Understanding the precise coordination geometry is crucial for predicting chemical properties.
• Crystal structure analysis provides fundamental insights into molecular arrangement and bonding.

Purpose of the Study:

• To determine the detailed crystal structure of the title compound, [NiCl(2)(C(14)H(32)P(2))].
• To elucidate the coordination geometry around the central Nickel(II) atom.
• To investigate intermolecular interactions within the crystal lattice.

Main Methods:

• Single-crystal X-ray diffraction was employed to analyze the crystal structure.
• The crystallographic data was refined to obtain precise atomic coordinates and bond parameters.
• Dihedral angles between coordination planes were calculated to quantify geometric distortions.

Main Results:

• The Nickel(II) atom is situated on a twofold rotation axis, adopting a slightly distorted square-planar coordination geometry.
• A dihedral angle of 10.01(8)° was measured between the cis-Cl-Ni-Cl and cis-P-Ni-P planes.
• Only very weak C-H⋯Cl intermolecular interactions were identified, indicating limited crystal packing forces.
• The crystal was confirmed to be a racemic twin.

Conclusions:

• The crystal structure of [NiCl(2)(C(14)H(32)P(2))] reveals a distorted square-planar nickel(II) center.
• The observed coordination geometry and weak intermolecular interactions influence the solid-state properties of the complex.
• The presence of a racemic twin highlights the crystallization behavior of this nickel complex.