Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Videos

Charge density study of 2-pyridone

H W Yang¹, B M Craven

¹Department of Crystallography, University of Pittsburgh, PA 15260, USA.

Acta Crystallographica. Section B, Structural Science

|January 9, 1999

Summary

The crystal structure of 2-pyridone reveals a lactam form, with molecules forming puckered chains via N-H...O hydrogen bonds in the crystal. These dimers differ from those observed in vapor and solution phases.

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

[A comparative study on early incision adaptability between symmetric and right-sided three-port laparoscopic bariatric surgery].

Zhonghua wei chang wai ke za zhi = Chinese journal of gastrointestinal surgery·2026

Same author

Constraints on Ultraheavy Dark Matter Properties from Dwarf Spheroidal Galaxies with LHAASO Observations.

Physical review letters·2024

Same author

Measurement of Ultra-High-Energy Diffuse Gamma-Ray Emission of the Galactic Plane from 10 TeV to 1 PeV with LHAASO-KM2A.

Physical review letters·2023

Same author

A tera-electron volt afterglow from a narrow jet in an extremely bright gamma-ray burst.

Science (New York, N.Y.)·2023

Same author

Constraints on Heavy Decaying Dark Matter from 570 Days of LHAASO Observations.

Physical review letters·2023

Same author

Alkaline semen diluent combined with R848 for separation and enrichment of dairy goat X-sperm.

Journal of dairy science·2022

Area of Science:

Crystallography
Chemical Physics
Molecular Structure

Background:

2-pyridone exists in lactam-tautomeric form.
Previous studies indicated cyclic dimer formation in vapor and solution.
Crystal structure data provides insights into intermolecular interactions.

Purpose of the Study:

Redetermine the crystal structure of 2-pyridone at low temperature.
Investigate molecular conformation and hydrogen bonding in the solid state.
Analyze charge density distribution and electrostatic potential.

Main Methods:

High-resolution X-ray diffraction at 123 K.
Rigid-body libration correction for bond lengths and angles.
Charge density calculations using Stewart's pseudo-atom model.

Main Results:

Confirmed lactam form of 2-pyridone.
Observed puckered chains linked by N-H...O hydrogen bonds, differing from solution/vapor dimers.
Identified weaker C-H...O and C-H...pi interactions.
Calculated molecular dipole moment of 8.8(19) D.
Located critical points in electron density for molecular interactions.

Conclusions:

The crystal packing of 2-pyridone is dominated by N-H...O hydrogen bonds forming chains.
C-H...pi interactions are weak and may be better described as van der Waals forces.
Charge density analysis provides detailed insights into bonding and intermolecular forces in 2-pyridone crystals.

Related Experiment Videos