Tris(4-tert-butyl-phen-yl)phosphine oxide

Area of Science:

• Organophosphorus chemistry
• Crystallography
• Molecular structure analysis

Background:

• Organophosphorus compounds are vital in various chemical applications.
• Understanding molecular geometry and bonding is crucial for predicting chemical behavior.
• Crystallographic studies provide precise atomic-level structural information.

Purpose of the Study:

• To determine the precise molecular structure of the title compound, C30H39OP.
• To analyze the bond lengths and angles, particularly around the phosphorus atom.
• To investigate the crystallographic symmetry and any observed molecular disorder.

Main Methods:

• Single-crystal X-ray diffraction was employed to collect diffraction data.
• The crystal structure was solved and refined using standard crystallographic software.
• Analysis of bond lengths, bond angles, and atomic positions was performed.

Main Results:

• The P=O bond length was determined to be 1.4866(12) Å.
• P-C bond lengths varied between 1.804(2) and 1.808(13) Å.
• The molecule lies on a crystallographic mirror plane, with disordered methyl groups in a tert-butyl substituent.

Conclusions:

• The study provides accurate structural data for the organophosphorus compound C30H39OP.
• The observed bond lengths are consistent with typical values for similar organophosphorus structures.
• The crystallographic symmetry and disorder offer insights into packing forces and molecular flexibility.