Mercury(II) complexes of pyrrolidinedithiocarbamate, crystal structure of bis{[μ2-(pyrrolidinedithiocarbamato-S,S ′)(pyrrolidinedithiocarbamato-S,S ′)mercury(II)]}

Altaf, Muhammad; Stœckli-Evans, Helen; Batool, Syeda Shahzadi; Isab, Anvarhusein A.; Ahmad, Saeed; Saleem, Muhammad; Awan, Shafique Ahmed; Shaheen, Muhammad

doi:10.1080/00958971003759085

Cited by 18 publications

(8 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Also, the peaks of the quaternary thiouride carbon atom (N C S 2 ) in the 13 C NMR spectra of 1 – 6 further confirmed formation of DTL1–DTL6 and these generally were observed to shift upfield upon complexation (Table ). This observation is attributed to metal–sulfur bond formation and the delocalization of an electron cloud in the four‐member (CS 2 M) chelate ring …”

Section: Resultsmentioning

confidence: 99%

Co(III) N,N′‐diarylformamidine dithiocarbamate complexes: Synthesis, characterization, crystal structures and biological studies

Oladipo

Omondi

Mocktar

2020

Applied Organom Chemis

View full text Add to dashboard Cite

Three symmetric N,N‐diarylformamidine dithiocarbamates, N,N′‐bis(2,6‐dimethylphenyl)formamidine dithiocarbamate (DTL1), N,N′‐bis(2,6‐disopropylphenyl)formamidine dithiocarbamate (DTL2) and N,N′‐dimesitylformamidine dithiocarbamate (DTL3), and three unsymmetric ones, N′‐(2,6‐dichlorophenyl‐N‐(2,6‐dimethylphenyl)formamidine dithiocarbamate (DTL4), N′‐(2,6‐dichlorophenyl)‐N‐(2,6‐diisopropylphenyl)formamidine dithiocarbamate (DTL5) and N′‐(2,6‐dichlorophenyl)‐N‐mesitylformamidine dithiocarbamate (DLT6), were reacted with chloridocobalt(III) in water to give Co‐(DTL1)3 (1), Co‐(DTL2)3 (2), Co‐(DTL3)3 (3), Co‐(DTL4)3 (4), Co‐(DTL5)3 (5) and Co‐(DTL6)3 (6). All the dithiocarbamates and complexes were characterized using 1H NMR, 13C NMR, Fourier transform infrared, UV–visible and mass spectra and the purity confirmed by elemental analysis. In addition, crystal structures of complexes 1, 2, 4 and 5 were determined, confirming the formation of mononuclear species in which the Co(III) centers coordinated to six sulfur atoms from three dithiocarbamate ligands resulting in distorted octahedral geometries. All complexes showed moderate to good antibacterial activities against Gram‐negative bacteria Escherichia coli, Salmonella typhimurium, Klebsiella pneumoniae and Pseudomonas aeruginosa even at low concentrations. None of the six were active against Gram‐positive bacterium methicillin‐resistant Staphylococcus aureus and only active against S. aureus at high concentrations. Complexes 5 and 6 were found to be more active than ciprofloxacin against S. typhimurium, E. coli, P. aeruginosa and K. pneumoniae and complexes with chloro‐substituted ligands generally had enhanced activities. Antioxidant activities of the dithiocarbamate salts and their Co(III) complexes were also investigated using DPPH assay and the complexes were found to be more efficient. Complex 2 with an IC50 value of 2.84 × 10−4 mM displayed the highest activity of all compounds tested, even outdoing ascorbic acid. The radical scavenging ability of the complexes followed the order 2 > 1 > ascorbic acid >3 > 4 > 6 > 5.

show abstract

Section: Resultsmentioning

confidence: 99%

Co(III) N,N′‐diarylformamidine dithiocarbamate complexes: Synthesis, characterization, crystal structures and biological studies

Oladipo

Omondi

Mocktar

2020

Applied Organom Chemis

View full text Add to dashboard Cite

show abstract

“…The formation of gold(I)‐dithiocarbamate complexes was confirmed by the presence of the ν(C–N) and ν(C–SS) absorption bands. The ν(C–N) band represents a carbon–nitrogen bond order intermediate between a single bond (ν = 1360–1250 cm –1 ) and a double bond (ν = 1690–1640 cm –1 ) , . The strong ν(C–N) vibration of complexes 3 – 5 were assigned at 1483, 1480, and 1433 cm –1 respectively.…”

Section: Resultsmentioning

confidence: 99%

Synthesis, Characterization, andin vitroCytotoxicity of Gold(I) Complexes of 2-(Diphenylphosphanyl)ethylamine and Dithiocarbamates

Sulaiman

Altaf

Isab

et al. 2016

Z. Anorg. Allg. Chem.

Self Cite

View full text Add to dashboard Cite

Gold(I) complexes of 2-(diphenylphosphanyl)ethylamine or (2-aminoethyl)diphenylphosphine (AEP), and dithiocaarbamates (R 2 NCS 2 ) were prepared by the reaction of these ligands with (CH 3 ) 2 S-AuCl in dichloromethane. The synthesized complexes [Au(AEP)Cl] (1), [Au(AEP) 2 ]Cl (2), and [Au 2 (R 2 NCS 2 ) 2 ] n (R 2 = dimethyl (3), diethyl (4), and dibenzyl (5)) were characterized by ele-* Dr. A. A. Isab

show abstract

“…The v(M-S) stretching vibrations occur as a weak band at region of low intensity at 376 and 396 cm À 1 for [Zn(dmtu) 2 ced] and [Cd(dmtu) 2 ced] respectively. The presence of these weak bands confirmed bonding between the metal and the sulfur atoms[29,30].The Zn(II) complex exhibit characteristics chemical shift that are typical of thiourea and CED. The singlet peak at δ 7.37 ppm in the 1 H-NMR can be assigned to the proton of the N-H of the thiourea group.…”

mentioning

confidence: 96%

Morphology and thermal studies of zinc sulfide and cadmium sulfide nanoparticles in polyvinyl alcohol matrix

Osuntokun

Ajibade

2016

Physica B: Condensed Matter

View full text Add to dashboard Cite

Mercury(II) complexes of pyrrolidinedithiocarbamate, crystal structure of bis{[μ²-(pyrrolidinedithiocarbamato-S,S ′)(pyrrolidinedithiocarbamato-S,S ′)mercury(II)]}

Cited by 18 publications

References 50 publications

Co(III) N,N′‐diarylformamidine dithiocarbamate complexes: Synthesis, characterization, crystal structures and biological studies

Co(III) N,N′‐diarylformamidine dithiocarbamate complexes: Synthesis, characterization, crystal structures and biological studies

Synthesis, Characterization, andin vitroCytotoxicity of Gold(I) Complexes of 2-(Diphenylphosphanyl)ethylamine and Dithiocarbamates

Morphology and thermal studies of zinc sulfide and cadmium sulfide nanoparticles in polyvinyl alcohol matrix

Contact Info

Product

Resources

About