2,4,5-Triphenyl-1,3,2-dioxa-phospho-lan-2-one

Area of Science:

• Organophosphorus Chemistry
• Crystallography
• Supramolecular Chemistry

Background:

• Understanding the three-dimensional structure and intermolecular interactions of organophosphorus compounds is essential for predicting their physical and chemical properties.
• The specific compound C(20)H(17)O(3)P, featuring a dioxaphospholane ring, has not been extensively studied in terms of its solid-state behavior.

Purpose of the Study:

• To elucidate the molecular conformation and intermolecular interactions of the title compound, C(20)H(17)O(3)P.
• To investigate the role of weak interactions, such as C-H⋯π and C-H⋯O bonds, in the crystal packing of this organophosphorus molecule.

Main Methods:

• Single-crystal X-ray diffraction was employed to determine the precise three-dimensional structure of the compound.
• Conformational analysis was performed on the determined crystal structure.
• Analysis of intermolecular interactions was conducted using crystallographic data.

Main Results:

• The dioxaphospholane ring adopts an envelope conformation.
• Benzene rings do not engage in face-to-face π-π stacking.
• Weak C-H⋯π interactions occur between adjacent molecules.
• Weak C-H⋯O hydrogen bonds are formed between methine H atoms and the oxide group of neighboring molecules.

Conclusions:

• The crystal structure is governed by a combination of weak C-H⋯π and C-H⋯O interactions, rather than strong π-π stacking.
• The observed conformational preferences and intermolecular interactions provide insights into the solid-state behavior of this class of organophosphorus compounds.