Structure of ethyl phenyl selenone

Area of Science:

• Crystallography
• Organic Chemistry
• Materials Science

Background:

• Understanding the three-dimensional structure of organic molecules is crucial for predicting their properties and reactivity.
• Selenium-containing organic compounds are of interest due to their unique electronic and biological properties.

Purpose of the Study:

• To determine the crystal structure of C8H10O2Se using X-ray diffraction.
• To analyze the molecular conformation, including the ethyl side chain and the orientation of the SeO2 group.
• To identify and characterize significant intermolecular interactions within the crystal lattice.

Main Methods:

• Single-crystal X-ray diffraction was employed to collect diffraction data.
• The crystal structure was solved and refined using standard crystallographic techniques.
• Unit cell parameters, space group, and atomic coordinates were determined.

Main Results:

• The compound C8H10O2Se crystallizes in the monoclinic system, space group P2(1)/n.
• Two similar molecules exist within the asymmetric unit, differing primarily in the ethyl side chain conformation.
• Considerable disorder was observed in one molecule, potentially due to torsion around the Se-C(ethyl) bond.
• The oxygen atoms of the SeO2 group are positioned near the phenyl group plane.
• Significant intermolecular interactions were identified as Se-O ... H-C hydrogen bonds, involving ethyl and phenyl group hydrogen atoms.

Conclusions:

• The crystal structure of C8H10O2Se has been elucidated, providing detailed insights into its solid-state arrangement.
• The study highlights the conformational flexibility of the ethyl side chain and the influence of intermolecular forces on molecular packing.
• The findings contribute to the understanding of structure-property relationships in organoselenium compounds.