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(2-Fluorophenylimino)tri(1-pyrrolyl)phosphorane
S A Bell1, T Y Meyer, S J Geib
1Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA.
Acta Crystallographica. Section C, Crystal Structure Communications
|November 14, 2001
Summary
This study details the molecular structure of a novel phosphorus compound, C(18)H(16)FN(4)P. Its atoms exhibit a unique chiral propeller-like arrangement around the central phosphorus atom.
Area of Science:
- Inorganic Chemistry
- Crystallography
- Materials Science
Background:
- Understanding the structural nuances of organophosphorus compounds is crucial for developing new materials.
- The coordination chemistry of phosphorus with nitrogen-containing ligands presents unique bonding characteristics.
Purpose of the Study:
- To elucidate the detailed three-dimensional structure of the title compound, C(18)H(16)FN(4)P.
- To analyze the bonding parameters, specifically P--N and P==N bond lengths.
- To describe the spatial arrangement of the pyrrolyl groups around the phosphorus atom.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the molecular structure.
- Analysis of bond lengths and angles provided insights into the electronic environment of the phosphorus atom.
Main Results:
- The phosphorus (P) atom displays a distorted tetrahedral geometry.
- Observed P--N bond lengths vary from 1.671 (3) to 1.680 (3) Å.
- A distinct P==N double bond was identified with a length of 1.517 (3) Å.
- The pyrrolyl groups adopt a chiral, propeller-like conformation around the central P atom.
Conclusions:
- The compound C(18)H(16)FN(4)P possesses a unique chiral structure with significant P--N and P==N bonding.
- The observed geometry provides a foundation for further studies into the reactivity and applications of related organophosphorus compounds.