Bis(2,4-dimeth-oxy-phen-yl)(phen-yl)phosphine selenide

Area of Science:

• Organometallic Chemistry
• Crystallography
• Materials Science

Background:

• Organophosphorus compounds containing selenium are of interest due to their unique chemical properties.
• Understanding the structural nuances of these molecules is crucial for predicting their reactivity and potential applications.

Purpose of the Study:

• To elucidate the detailed molecular structure and crystal packing of the title compound, C(22)H(23)O(4)PSe.
• To analyze the coordination environment around the phosphorus atom and the conformational aspects of the aryl ligands.

Main Methods:

• Single-crystal X-ray diffraction was employed to determine the three-dimensional structure.
• Analysis of bond lengths, bond angles, and torsion angles provided insights into molecular geometry.
• Intermolecular interactions, specifically C-H⋯Se interactions, were identified and analyzed.

Main Results:

• The phosphorus atom exhibits a distorted tetrahedral geometry, with a P=Se bond length of 2.1219(5) Å.
• The two 2,4-dimethoxyphenyl ligands display distinct methoxy group orientations, evidenced by significant differences in C-C-O-C torsion angles.
• Molecules are linked into zigzag chains in the crystal lattice through weak intermolecular C-H⋯Se interactions.

Conclusions:

• The study provides a comprehensive structural characterization of the organoselenium compound.
• The observed structural features, including the distorted tetrahedral geometry and specific intermolecular interactions, offer valuable data for the design of novel organophosphorus-selenium materials.