Synthesis and structural characterization of new dithiocarbamate complexes from Sb(III) and Bi(III)

Abstract

Abstract. Twenty new antimony and bismuth dithiocarbamate complexes which employed ten different type of amines have been successfully synthesized. The synthesized complexes with metal to dithiocarbamate ratio at 1:3. Elemental analysis of the complexes gave the general formula of MCl[S 2 CNR'R"] 2 where M = Sb(III), Bi(III); R' = methyl, ethyl, propyl, isopropyl, butyl, sec-butyl, benzyl; R" = ethanol, methyl, ethyl, propyl, isopropyl, cyclohexyl, benzyl. The complexes were analysed by IR and NMR spectroscopy. The crystal structure of five-coordinated antimony (III) complex have been determined by X-ray single crystal diffraction. Single crystal X-ray diffraction studies on SbCl[S 2 CN(C 4 H 9 )(C 2 H 5 )] 2 adopted a triclinic system with a space group P1 with a = 10.0141(8) Å, b = 10.1394(7) Å, c = 11.8665(9) Å, α = 67.960 o , β =87.616 o , γ = 80.172 o .

Synthesis and Cytotoxicity Studies of Novel NHC*-Gold(I) Complexes Derived from Lepidiline A

“…Previous metal-dialkyldithiocarbamate complexes reported the IR stretch of the carbon sulphur bond from 820–1050 cm −1 [ 19 , 20 ]. The IR spectra of 3 , 4 and 5 show a medium band at 971, 910, and 949 cm −1 , respectively, corresponding to the C=S stretch.…”

“…IR spectra of 3 , 4 , and 5 show bands at 1447, 1411, and 1406 cm −1 , respectively, which correspond to the carbon–nitrogen stretching of the carbamate. Interestingly, these IR values account for an intermediate bond in the 1450–1550 cm −1 range [ 20 ]. This indicates a resonance structure is present where the carbon–nitrogen bond exhibits more double bond character than the carbon–sulphur bonds.…”

Chemistry and Some Biological Potential of Bismuth and Antimony Dithiocarbamate Complexes

“…The SbCl 3 salt was reacted with either tetramethylthiuram monosulphide (in methanolic solution) or tetramethylthiuram disulphide (in a mixture of acetonitrile/dichloromethane solutions) to give two polymorphic form of the antimony(III) dimethyldithiocarbamate complex; while tetraethylthiuram disulphide was reacted in a mole ratio 1:1 with BiCl 3 to give the desired Bi(III) complex. Sb(III) and Bi(III), derived from different secondary amines, with the general formula MCl[S 2 CNR R"] 2 (where R = benzyl, methyl, sec-butyl, propyl, ethyl, isopropyl, butyl; R" = cyclohexyl, ethyl, methyl, propyl, isopropyl, benzyl, ethanol), have been reported by Jamaluddin and Baba [44]. These complexes were prepared by the addition of a mixture of CS 2 in cold ethanol to the respective amine solutions, which was followed with the dropwise addition of a solution of the respective metal chloride salt in cold ethanol to give a pale yellow precipitate of Bi(III) and white Sb(III) complexes.…”

Synthesis, Characterization, and Biological Activity of Some New Organic Telluriium Compounds Containing Thiadiazoles

“…The signals appeared at 7.8 , 7.1, 7.0, 7.0 and 6.89 ppm can be attributed to CH (6) respectively . The signals at 7.8, 7.9, 7.967.97 and 7.17ppm also can be attributed to CH (7) respectively [26] , The signals at 8.3, 8.5,8.5 and 7.95 may due to NH(3). While chemical shifts for NH(4) appeared at 8.8, 8.9, 8.9, 8.89 and 8.78ppm .the chemical shift for NH(5) group appeared at 11.3, 11.8,11.8,11.89 and 11.8 ppm respectively.…”

“…The spectral region 200-800 nm was investigated by UV-Vis spectrophotometry at a concentration of 1.0 x 10 -4 M for all compounds in ethanol solution. In general, the UV-visible spectra for compounds 1-5 show ᴫ-ᴫ * transitions due to the thiodiazole and aromatic rings and n-ᴫ * transitioncan be considered as an evidence to coordinate thiodaziol with tellurium atom or tellurium atom with dithiocarbamate derivatives compounds [23,26].…”