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Related Experiment Video

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Facile Preparation of 4-Substituted Quinazoline Derivatives

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Published on: February 15, 2016

8-(Diphenyl-phosphan-yl)quinoline.

Samik Nag, Mihaela Cibian, Garry S Hanan

Acta Crystallographica. Section E, Structure Reports Online

|May 19, 2011

Summary

This summary is machine-generated.

This study presents the first crystallographic evidence of a P-N chelator ligand. The crystal structure reveals the specific spatial arrangement of its phenyl and quinoline rings.

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Area of Science:

Coordination Chemistry
Crystallography
Organic Synthesis

Background:

The P-N chelator C(21)H(16)NP is a well-established ligand in coordination chemistry.
Numerous crystal structures of its metal complexes exist, but the free ligand's structure remained uncharacterized.

Purpose of the Study:

To provide the first crystallographic data for the free P-N chelator ligand, C(21)H(16)NP.
To elucidate the molecular geometry and conformational preferences of the uncoordinated ligand.

Main Methods:

Single-crystal X-ray diffraction analysis was employed to determine the crystal structure of the free ligand.
Analysis of bond lengths, bond angles, and dihedral angles provided insights into the molecular conformation.

Main Results:

The crystal structure of the free P-N chelator C(21)H(16)NP was successfully determined.
The study revealed a near-orthogonal arrangement of the phenyl rings with a dihedral angle of 88.9°.
Significant twisting of the phenyl rings relative to the quinoline plane was observed (80.5° and 76.3°).

Conclusions:

This work provides crucial crystallographic data for the free P-N chelator, complementing existing studies on its metal complexes.
The determined molecular geometry offers a baseline for understanding its coordination behavior and reactivity.