title: Synthesis, characterization and antimicrobial activities of some mixed ligand complexes of Co(II) with thiosemicarbazones and N-protected amino acids.
abstract: The reaction of cobalt(II) chloride with a new class of thiosemicarbazones viz; cis-3,7-dimethyl-2,6-octadienthiosemicarbazone(CDOTSC; L(1)H) and 3,7-dimethyl-6-octenethiosemicarbazone (DOTSC; L(2)H) and N-phthaloyl derivative of DL-glycine(A(1)H), L-alanine(A(2)H) or L-valine(A(3)H) in 1:1:1 molar ratio in dry refluxing ethanol have been studied. All the isolated complexes have the general composition [Co(L)(A)]. Tentative structures are proposed for these complexes based upon elemental analysis, electrical conductances, magnetic moment, molecular weight determination and spectral (IR, electronic) studies.The ligands and Co(II) complexes have been tested for their antibacterial and antifungal activities against three bacterial strains S. aureus, B. subtilis, E. coli and two fungal strains F. moniliformae and M. phaseolina. Attempts have been made to establish a correlation between the antibacterial and antifungal activity and the structures of products.
authors.affiliation: Department of Chemistry, University of Rajasthan, Jaipur, Rajasthan 302004, India. renusharma26@yahoo.co.in
authors.forename: Renu
authors.initials: R
authors.lastname: Sharma
authors.forename: Meena
authors.initials: M
authors.lastname: Nagar
authors.forename: Manoj
authors.initials: M
authors.lastname: Agarwal
authors.forename: Hemant
authors.initials: H
authors.lastname: Sharma
mesh_terms: D000900:Anti-Bacterial Agents / Q000138:chemical synthesis* / Q000494:pharmacology; D000935:Antifungal Agents / Q000138:chemical synthesis* / Q000494:pharmacology; D003035:Cobalt; D008024:Ligands; D008826:Microbial Sensitivity Tests; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000494:pharmacology; D013329:Structure-Activity Relationship; D013882:Thiosemicarbazones / Q000138:chemical synthesis* / Q000494:pharmacology
chemical_list: D000900:Anti-Bacterial Agents; D000935:Antifungal Agents; D008024:Ligands; D009942:Organometallic Compounds; D013882:Thiosemicarbazones; D003035:Cobalt