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Published on: January 1, 2018
Experimental charge density study of estrogens: 17beta-estradiol.urea
Damon Parrish1, Elizabeth A Zhurova, Kristin Kirschbaum
1Department of Chemistry, University of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606, USA.
The Journal of Physical Chemistry. B
|December 22, 2006
Summary
This study analyzes the charge density of 17beta-estradiol*urea, revealing distinct electrostatic potentials around oxygen atoms. These findings help understand the molecular electrostatic potential
Area of Science:
- Crystallography
- Quantum Chemistry
- Molecular Biology
Background:
- Estrogens are crucial hormones with diverse biological activities.
- Understanding the molecular electrostatic potential (MEP) is key to elucidating estrogenic effects.
- Comparative charge density studies provide insights into molecular interactions.
Purpose of the Study:
- To investigate the charge density and molecular electrostatic potential of 17beta-estradiol*urea.
- To correlate MEP with the biological activities of estrogen derivatives.
- To analyze the electronic structure of the 17beta-estradiol molecule.
Main Methods:
- Charge density analysis using experimental and theoretical methods.
- Refinement of a large organic system (52 atoms) in a noncentrosymmetric space group.
- Topological analysis of electron density and atomic charge estimation.
Main Results:
- The urea molecule's properties align with previous findings.
- Oxygen atoms in 17beta-estradiol exhibit sp3 hybridization with distinct lone pairs.
- Significant differences in negative potential were observed in the lone pair regions of oxygen atoms.
Conclusions:
- The charge density analysis provides a detailed electronic structure of 17beta-estradiol*urea.
- Differences in MEP suggest varied interactions and potential biological activities.
- This study contributes to understanding structure-activity relationships in estrogens.
