Structure of 4-(3-chlorophenyl)thiosemicarbazide

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.
• 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.