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|January 5, 2011

Summary

This summary is machine-generated.

The crystal structure of C(21)H(21)P reveals a unique threefold rotation symmetry due to the central phosphorus atom. This symmetry influences the spatial arrangement of its associated benzene rings.

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Area of Science:

Solid-state chemistry
Crystallography
Organophosphorus chemistry

Background:

Understanding molecular symmetry is crucial in predicting chemical properties.
Organophosphorus compounds exhibit diverse structural motifs.
Crystallographic studies provide precise atomic-level structural information.

Purpose of the Study:

To determine the crystal structure of the title compound C(21)H(21)P.
To analyze the symmetry elements present in the molecule.
To investigate the spatial arrangement of the benzene rings.

Main Methods:

Single-crystal X-ray diffraction was employed to collect diffraction data.
The crystal structure was solved and refined using standard crystallographic software.
Symmetry analysis was performed based on the determined atomic coordinates.

Main Results:

The phosphorus atom in C(21)H(21)P is located on a crystallographic threefold rotatory-inversion axis.
The molecule exhibits threefold rotation symmetry.
The dihedral angles between symmetry-related benzene rings were measured to be approximately 87.40 degrees.

Conclusions:

The crystal structure of C(21)H(21)P is characterized by high symmetry.
The observed symmetry is a direct consequence of the phosphorus atom's position.
The precise dihedral angles provide insights into the steric interactions within the molecule.