Synthesis, spectroscopic, thermal and antimicrobial studies of toluene-3,4-dithiolatoarsenic(III) derivatives with some oxygen and sulphur donor ligands

Chauhan, H. P. S.; Bhatiya, Sumit

doi:10.1016/j.saa.2012.07.086

Cited by 10 publications

(11 citation statements)

References 33 publications

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“…Intense peaks found at 846-849, 701 and 649 cm -1 are characteristic of the secondary ligands phen, py and bipy, respectively. The intense bands observed in the region of 959-969 cm -1 are due to m C-S stretching [28]. The new peaks at 496-498 and 421-437 cm -1 are due to M-O and M-N vibrational frequencies [29].…”

Section: Ir Spectra and Magnetic Studiesmentioning

confidence: 99%

Versatile coordinating capabilities of thiodibenzoic acid copper complexes bearing N-donor ligands

Moosun

Blair

Coles

et al. 2014

Transition Met Chem

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Cu(II) coordination polymers [Cu(tda)(phen)]-1.5H 2 O (1a), [Cu(tda)(py)] (2a) and [Cu(tda)(bipy)(H 2 O)]-0.5H 2 O (3a) (tda = thiodibenzoic acid, phen = phenanthroline, py = pyridine, bipy = bipyridine) have been synthesized by slow diffusion. Under solvothermal conditions, [Cu(tda)(phen)]2H 2 O (1b), [Cu(tda)(H 2 O)] (2b) and[Cu(tda)(bipy)] (3b) were isolated. The structures of the complexes 1a-3a have been determined by single X-ray diffraction. The experimental X-ray powder diffraction patterns of 1b-3b were compared with the calculated patterns of 1a-3a. The polymers were found to exhibit structural and dimensional diversity due to the effect of the co-ligands. In complexes 1a and 1b, tda is found to coordinate with the metal atom in a monodentate mode, while in 2a and 2b, the carboxylate oxygens are coordinated with the two metal centers in a l-bridged bidentate fashion. The structural analysis of 3a shows that the copper atom is in a square pyramidal environment, whereby the metal atom is coordinated with the carboxylate oxygens of two different tda ligands in a monodentate fashion and two nitrogens of the bipyridine ligand and one coordinated water. The IR spectrum of 3b implies a bidentate mode of coordination.

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Section: Ir Spectra and Magnetic Studiesmentioning

confidence: 99%

Versatile coordinating capabilities of thiodibenzoic acid copper complexes bearing N-donor ligands

Moosun

Blair

Coles

et al. 2014

Transition Met Chem

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“…The 13 C NMR spectra of all the derivatives have been assigned on the basis of previous reports and the data are summarized in Table . The proton decoupled 13 C NMR spectra of the bis( O , O ′‐diisopropyldithiophosphato‐ S , S ′)antimony(III) derivatives exhibited two signals, one at 22.21–23.76 ppm due to carbon atoms of gem C H 3 group and another at 72.12–74.21 ppm as a doublet due to PO C H carbon resonances.…”

Section: Resultsmentioning

confidence: 99%

“…The above results explain the elevated antimicrobial activities of metal derivatives with oxygen and sulfur donor ligands which may be due to the presence of metal–oxygen and metal–sulfur bonding …”

Section: Resultsmentioning

confidence: 99%

Preparation, spectroscopic, thermal and powder X‐ray diffraction characterization, and antimicrobial activities of mixed bis(O,O′‐diisopropyldithiophosphato‐S,S′)antimony(III) derivatives with some oxygen and sulfur donor ligands

Bhatiya

Chauhan

Carpenter

2017

Applied Organom Chemis

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Newly synthesized mixed bis(O,O′‐diisopropyldithiophosphato‐S,S′)antimony(III) derivatives have been characterized using physicochemical, spectral, thermal and powder X‐ray diffraction studies, and their antimicrobial activities were investigated. These derivatives have nanometric crystallite size (11.39–14.67 nm) with unit cell volume (4968.47 and 5079.79 Å3) and lower symmetry (monoclinic) crystal system. After thermal decomposition in inert atmosphere, these derivatives give antimony sulfide as a final decomposition product which has many potential applications, and they exhibit enhanced antimicrobial activities (greater zone of inhibition) as compared to the free ligands and standard drugs (chloroamphenicol and terbinafine were used as standard antibacterial and antifungal drugs, respectively) due to the nanometric size of the complexes.

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“…The C―S group of the dithiocarbamate showed n–π * transition at 240–260 nm involving the transition of non–bonding electrons of sulfur atom to an antibonding π‐orbital and the presence of low‐intensity bands at 340–360 nm, probably due to charge transfer transition of dithiocarbamate group . Compounds 1 , 2 , 3 , 4 , 5 also show medium to strong intensities of absorption between 246 and 260 nm owing to the chromophoric group (CO) of corresponding oxygen or sulfur donor ligands …”

Section: Resultsmentioning

confidence: 99%

Mixed bis(morpholine‐4‐dithiocarbamato‐S,S′)antimony(III) complexes: synthesis, characterization and biological studies

Chauhan

Carpenter

Joshi

2014

Applied Organom Chemis

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Some mixed bis(morpholine-4-dithiocarbamato-S,S′)antimony(III) complexes [(OC 4 H 8 NCS 2 ) 2 SbL] with oxygen or sulfur donor ligands [L = -OOCCH 3 (1), -OOCC 6 H 5 (2), -SOCCH 3 (3), -SCH 2 COOH (4), -OOCC 6 H 4 (OH) (5), -SCH 2 CH 2 CH 3 (6), -OC 6 H 5 (7), ½ -SCH 2 CH 2 S-(8)] have been synthesized by reacting the chloro-bis(morpholine-4-dithiocarbamato-S,S′)antimony(III) with corresponding oxygen or sulfur donor ligands in 1:1 or 2:1 stoichiometries. These have been characterized by melting point, molecular weight determination (cryoscopically), antimony (iodometrically) and sulfur (gravimetrically) estimation, elemental analyses (C, H and N), UV-visible, FT-IR, far IR, multinuclear NMR ( 1 H and 13 C)], TG/DTA analysis, ESI-mass and powder X-ray diffraction studies. The splitting of the strong band observed at 1046-1066 cm À1 due to υ(C-S) indicated anisobidentate mode of binding of the dithiocarbamate group, which was further supported by a 13 C NMR signal appearing at around δ 200 due to NCS 2 moiety. The base peak observed at m/z 444.9 supports the strong chelating nature of the morpholine-4-dithiocarbamate compared to the other hetero ligands used. TGA revealed that, complexes 21 and 4 were decomposed in three steps; also 6 was decomposed in two steps, followed by the formation of Sb 2 S 3 . The results obtained by antimicrobial screening tests indicate that complex 3 showed a maximum zone of inhibition (20 mm) against Trichoderma ressie at a concentration of 200 μg ml À1 . Complexes 2, 3 and 8 are most active (zone of inhibition (ZI) 17-20 mm) against both of the fungal species Aspergillus niger and Trichoderma ressie as well as complex 4 (ZI 17 mm) and 6 (ZI 18 mm) against Trichoderma ressie.

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Synthesis, spectroscopic, thermal and antimicrobial studies of toluene-3,4-dithiolatoarsenic(III) derivatives with some oxygen and sulphur donor ligands

Cited by 10 publications

References 33 publications

Versatile coordinating capabilities of thiodibenzoic acid copper complexes bearing N-donor ligands

Versatile coordinating capabilities of thiodibenzoic acid copper complexes bearing N-donor ligands

Preparation, spectroscopic, thermal and powder X‐ray diffraction characterization, and antimicrobial activities of mixed bis(O,O′‐diisopropyldithiophosphato‐S,S′)antimony(III) derivatives with some oxygen and sulfur donor ligands

Mixed bis(morpholine‐4‐dithiocarbamato‐S,S′)antimony(III) complexes: synthesis, characterization and biological studies

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