Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Neutral and ionic hydrogen bonding in Schiff bases.

Paulina M Dominiak1, Eugeniusz Grech, Gordon Barr

  • 1Department of Chemistry, The University of Warsaw, ul. Pasteura 1, 02093 Warsaw, Poland.

Chemistry (Weinheim an Der Bergstrasse, Germany)
|February 14, 2003
PubMed
Summary

This study investigated charge distributions in Schiff bases, revealing distinct ionic and neutral intramolecular hydrogen bonds. The neutral hydrogen bond appears stronger, impacting molecular geometry and aromaticity differently than the ionic type.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Decoding Elastic, Plastic, and Elastic-Plastic Deformation in Aryl Benzoate Molecular Crystals via Substituent-Driven Interaction Hierarchies.

Chemistry (Weinheim an der Bergstrasse, Germany)·2026
Same author

Editorial: The association between the nervous system and the stomatognathic system: from etiology to diagnosis and treatment of orofacial pain.

Frontiers in neurology·2026
Same author

Electromyographic activity of the orbicularis oris muscle in children with and without lip competence: A cross-sectional study.

Advances in clinical and experimental medicine : official organ Wroclaw Medical University·2026
Same author

Crystallization-assisted water adsorption in amorphous molecular adsorbents.

Nature communications·2026
Same author

The Relationship Between Malocclusion and Periodontal Health in Children and Adolescents: A Systematic Review and Meta-Analysis.

Journal of clinical medicine·2026
Same author

Charge Shift in Calcite before High-Pressure Phase Transition.

Journal of the American Chemical Society·2026

Area of Science:

  • Crystallography
  • Chemical Physics
  • Molecular Structure

Background:

  • Schiff bases are organic compounds with diverse applications.
  • Intramolecular hydrogen bonds significantly influence molecular properties.
  • Understanding charge distributions is key to predicting chemical behavior.

Purpose of the Study:

  • To investigate charge distributions and hydrogen bonding in three Schiff base compounds.
  • To compare the geometrical and electronic differences between ionic and neutral intramolecular hydrogen bonds.
  • To analyze the impact of hydrogen bond type on molecular geometry and aromaticity.

Main Methods:

  • Low-temperature, high-resolution X-ray diffraction studies.
  • Analysis of charge density distribution.

Related Experiment Videos

  • Examination of geometrical parameters and critical point properties.

    • Main Results:

    • Two extreme intramolecular hydrogen bonds were observed: ionic N(+)-H...O- and neutral O-H...N.
    • The neutral O-H...N bond showed distinct geometrical changes and charge density distributions compared to the ionic type.
    • Neutral hydrogen bonds appeared stronger, reducing aromaticity, while ionic bonds suggested zwitterionic contributions.

    Conclusions:

    • The type of intramolecular hydrogen bond (ionic vs. neutral) significantly affects molecular geometry and electron distribution in Schiff bases.
    • Geometrical and charge density parameters provide insights into the relative strengths of these hydrogen bonds.
    • The findings contribute to understanding weak interactions and their influence on molecular electronic structure.