Ethane-1,2-diylbis(methyl-phosphinic acid).

Area of Science:

• Crystallography
• Supramolecular Chemistry
• Materials Science

Background:

• Understanding molecular interactions is crucial for designing new materials.
• Hydrogen bonding plays a significant role in the self-assembly of molecules.
• Phosphinic acids are versatile compounds with potential applications in various fields.

Purpose of the Study:

• To elucidate the crystal structure of the title compound C(4)H(12)O(4)P(2).
• To investigate the hydrogen bonding patterns and their influence on molecular assembly.
• To characterize the supramolecular architecture formed by phosphinic acid groups.

Main Methods:

• Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
• Analysis of hydrogen bonding interactions, including bond lengths and angles.
• Classification of the observed hydrogen bonding motif using the Etter symbol.

Main Results:

• The crystal structure contains two independent half-molecules, each located on a center of symmetry.
• Strong O-H⋯O hydrogen bonds link neighboring molecules, forming one-dimensional chains along the [10] direction.
• The phosphinic acid groups exhibit a specific ring motif, R(2)(2)(8), due to hydrogen bond donation and acceptance.

Conclusions:

• The study provides detailed insights into the supramolecular assembly of phosphinic acid derivatives.
• The observed hydrogen bonding network dictates the formation of extended one-dimensional structures.
• The characterized R(2)(2)(8) motif offers a fundamental understanding of molecular recognition in this system.