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Related Experiment Videos

Experimental charge density in the transition metal complex Mn(2)(CO)(10): a comparative study.

Louis J Farrugia1, Paul R Mallinson, Brian Stewart

  • 1Department of Chemistry, University of Glasgow, Glasgow, Scotland. louis@chem.gla.ac.uk

Acta Crystallographica. Section B, Structural Science
|March 27, 2003
PubMed
Summary

This study investigated the charge density of bis(pentacarbonylmanganese) at 100 K, finding no significant Mn-Mn bond lengthening compared to higher temperatures. Chemical bonds were confirmed as covalent using the Atoms in Molecules approach.

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Area of Science:

  • Inorganic Chemistry
  • Physical Chemistry
  • Quantum Chemistry

Background:

  • Bis(pentacarbonylmanganese), Mn2(CO)10, is a key organometallic compound.
  • Understanding metal-metal and metal-ligand bonding is crucial for its reactivity.
  • Previous studies have explored its structure and electronic properties.

Purpose of the Study:

  • To perform an accurate experimental charge density study of Mn2(CO)10 at 100 K.
  • To investigate the nature of metal-metal and metal-ligand interactions.
  • To compare experimental findings with previous structural data and theoretical calculations.

Main Methods:

  • Experimental charge density analysis at 100 K.
  • Topological analysis using the Atoms in Molecules (AIM) approach.

Related Experiment Videos

  • Examination of electron density (rho(r)), Laplacian of the density (nabla(2)rho(r(b))), and total energy density (H(r(b))) at bond critical points.
  • Comparison with prior experimental data and Density Functional Theory (DFT) calculations.

    • Main Results:

    • No significant Mn-Mn bond lengthening was observed between 100 K and 296 K.
    • All chemical bonds within Mn2(CO)10 were classified as covalent in nature.
    • Experimental and theoretical charge densities showed close agreement.

    Conclusions:

    • The Mn-Mn bond in bis(pentacarbonylmanganese) is stable across a range of temperatures.
    • The Atoms in Molecules topological analysis confirms the covalent character of bonding.
    • The study validates theoretical models against experimental charge density data.