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Related Experiment Videos

A T-shaped selenenyl halide.

Z Majeed1, W R McWhinnie, P R Lowe

  • 1Department of Chemical Engineering and Applied Chemistry, Aston University, Aston Triangle, Birmingham B4 7ET, England.

Acta Crystallographica. Section C, Crystal Structure Communications
|July 21, 2004
PubMed
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This study details the molecular structure of a novel selenenyl halide complex, 3-iodo-2-phenyl-3H-3-selenaindazole. Its unique geometry and intermolecular forces were analyzed.

Area of Science:

  • Organometallic Chemistry
  • Crystallography
  • Organic Synthesis

Background:

  • Selenaindazole derivatives are important in medicinal chemistry and materials science.
  • Understanding the structural and electronic properties of selenium-containing heterocycles is crucial for developing new applications.

Purpose of the Study:

  • To synthesize and characterize the novel selenenyl halide complex, 3-iodo-2-phenyl-3H-3-selenaindazole.
  • To elucidate the molecular geometry and bonding characteristics of the selenium atom within the complex.
  • To investigate the intermolecular interactions influencing the crystal packing.

Main Methods:

  • Single-crystal X-ray diffraction was employed to determine the precise three-dimensional structure.
  • Analysis of bond lengths, bond angles, and coordination geometry around the selenium atom.

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  • Examination of intermolecular contacts, including stacking interactions.

    • Main Results:

    • The complex, C(12)H(9)IN(2)Se, exhibits an almost planar conformation.
    • The selenium atom displays a nearly ideal T-shaped geometry for the Se(INC) moiety.
    • A distorted trigonal-bipyrimidal geometry around the selenium atom is observed, influenced by its lone pairs.
    • Intermolecular interactions are predominantly stacking forces.

    Conclusions:

    • The structural analysis provides fundamental insights into the coordination chemistry of selenium in heterocyclic systems.
    • The observed geometry and bonding patterns are significant for predicting the reactivity and properties of related selenenyl halide complexes.
    • The dominance of stacking forces suggests potential for self-assembly and ordered structures.