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Related Experiment Videos

A benzopyran derivative substituted at position 3.

Agnieszka J Rybarczyk-Pirek1, Magdalena Małecka, Sławomir J Grabowski S

  • 1Department of Crystallography and Crystallochemistry, University of Łódź, Pomorska 149/153, PL-90236 Łódź, Poland. arybarcz@krysia.uni.lodz.pl

Acta Crystallographica. Section C, Crystal Structure Communications
|July 3, 2002
PubMed
Summary

This study details the molecular structure of a novel benzopyran-methylhydrazone derivative. Intramolecular interactions influence its planarity and the orientation of its phenyl rings, offering insights into its chemical properties.

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Area of Science:

  • Organic Chemistry
  • Crystallography

Background:

  • Benzopyran derivatives are known for diverse biological activities.
  • Methylhydrazone moieties are important pharmacophores in medicinal chemistry.

Purpose of the Study:

  • To elucidate the crystal structure and molecular geometry of (E)-3-[[(diphenoxyphosphoryl)methylhydrazono]methyl]-4H-1-benzopyran-4-one.
  • To investigate the role of intramolecular interactions in the compound's structure.

Main Methods:

  • Single-crystal X-ray diffraction analysis was performed.
  • Molecular geometry and intermolecular interactions were analyzed.

Main Results:

  • The benzopyran-methylhydrazone core was found to be planar.
  • The two phenoxy phenyl rings exhibited distinct inclinations of 21.29° and 89.33°.

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  • Weak C-H...O and C-H...N intramolecular interactions were identified, influencing the moiety's orientation.

    • Conclusions:

    • The crystal structure reveals specific spatial arrangements dictated by intramolecular forces.
    • Understanding these structural features is crucial for predicting the compound's reactivity and potential applications.