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Related Experiment Videos

Structure of 4-(3-chlorophenyl)thiosemicarbazide.

D Chattopadhyay1, T Banerjee, S K Mazumdar

  • 1Crystallography and Molecular Biology Division, Saha Institute of Nuclear Physics, Calcutta, India.

Acta Crystallographica. Section C, Crystal Structure Communications
|January 15, 1991
PubMed
Summary
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This study details the crystal structure of a meta-chloro substituted thiosemicarbazide derivative. The meta-chloro substitution influences electronic properties, leading to reduced antibacterial activity compared to related compounds.

Area of Science:

  • Crystallography
  • Medicinal Chemistry
  • Organic Chemistry

Background:

  • Thiosemicarbazide derivatives are known for their diverse biological activities.
  • Structural modifications can significantly impact the chemical and biological properties of these compounds.
  • Understanding the relationship between structure and activity is crucial for drug design.

Purpose of the Study:

  • To elucidate the crystal structure of a specific meta-chloro substituted thiosemicarbazide derivative.
  • To investigate the conformational and electronic effects of meta-chloro substitution on the thiosemicarbazide moiety.
  • To correlate structural findings with the observed antibacterial activity.

Main Methods:

  • Single crystal X-ray diffraction analysis was performed.

Related Experiment Videos

  • The crystal structure was solved and refined using standard crystallographic techniques.
  • Antibacterial activity was assessed (details not provided in abstract).

    • Main Results:

    • The compound crystallizes in the monoclinic P21/c space group with specific lattice parameters.
    • The sulfur and terminal hydrazinic nitrogen atoms adopt a trans conformation.
    • The meta-chloro substituent reduces the electron density on the terminal nitrogen atom.

    Conclusions:

    • The meta-chloro substitution affects the electronic distribution within the thiosemicarbazide chain.
    • This electronic modification leads to a decrease in the compound's antibacterial efficacy compared to para-substituted analogs.
    • The study provides structural insights into the mechanism of action or activity modulation of these compounds.