Jove
Visualize
Contact Us

Related Experiment Videos

A new relation between bond valence and bond distance.

F Mohri1

  • 1Institute for Fundamental Chemistry, 34-4 Takano-Nishihiraki-cho, Sakyoku, Kyoto 606-8103, Japan. qzg00677@nifty.ne.jp

Acta Crystallographica. Section B, Structural Science
|August 16, 2000
PubMed
Summary

A novel empirical relationship connects bond distances and bond valences, applicable to various chemical systems. This new formula refines existing models and enhances understanding of chemical bonding.

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

Cloning and mapping of the human SOX1: a highly conserved gene expressed in the developing brain.

Mammalian genome : official journal of the International Mammalian Genome Society·1997
See all related articles
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

Area of Science:

  • Solid-state chemistry
  • Crystallography
  • Chemical bonding theory

Background:

  • Existing bond valence models, such as the Brown-Shannon and Brown-Altermatt formulas, have limitations.
  • Understanding the relationship between bond distance and bond valence is crucial for predicting crystal structures and chemical properties.
  • Pauling's radii provide a basis for defining the size of atomic electron regions.

Purpose of the Study:

  • To propose a new empirical relationship between bond distances and bond valences.
  • To provide a more universally applicable model for describing chemical bonds.
  • To explain the success of previous bond valence models and extend their applicability.

Main Methods:

  • Derivation of a new empirical relationship: s = s0(R0 - lambda)³/(R - lambda)³.

Related Experiment Videos

  • Hypotheses based on electron density and conservation principles within coordination polyhedra.
  • Application and validation of the new relationship to diverse chemical systems.

    • Main Results:

    • The proposed relationship accurately describes the bond valence for varying bond distances.
    • The model successfully accounts for polyhedra with single or multiple ligand types.
    • The new relationship explains the efficacy of the Brown-Shannon and Brown-Altermatt formulas.

    Conclusions:

    • The new empirical relationship offers a refined understanding of bond valence and distance.
    • The model demonstrates broad applicability across inorganic and organic compounds, including hydrogen bonds.
    • This work provides a valuable tool for crystallographic and chemical bonding research.