Structural Features and Biological Studies of Dioxomolybdenum(VI) Complexes of Thiosemicarbazones

Kanoongo, Neeta; Singh, Ranvir; Tandon, J. P.

doi:10.1246/bcsj.62.1385

Cited by 9 publications

(3 citation statements)

References 8 publications

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“…In the spectra of the 1:1 manganese metal complexes, a band observed at 675-890 cm )1 can be assigned to the coordinated H 2 O molecule. This band is absent in the spectra of the corresponding 1:2 complexes[25]. Further, the appearance of a strong band in the 940-980 cm )1 region in the vanadium complexes may be assigned to V=O stretching vibrations.…”

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confidence: 88%

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Spectroscopic and Biochemical Studies of Some Manganese(II), Oxovanadium(V) and Dioxomolybdenum(VI) Complexes S/O and N Donor Agents Synthesized under Microwave Conditions

Garg

Saini

Fahmi

et al. 2006

Transition Met Chem

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The synthesis of some new manganese(II), oxovanadium(V) and dioxomolybdenum(VI) complexes with 5-chloro-1,3-dihydro-3-[2-(phenyl)-ethylidene]-2H-indol-2-one-hydrazinecarbothioamide (L 1 H) and 5-chloro-1,3-dihydro-3-[2-(phenyl)-ethylidene]-2H-indol-2-one-hydrazinecarboxamide (L 2 H) were carried out in unimolar and bimolar ratios. All the new derivatives have been characterized by elemental analyses, molecular weight determinations, molar conductance, magnetic measurements, i.r., 1 H-n.m.r. and e.s.r. studies. The i.r. and n.m.r. spectral data suggest the involvement of sulphur/oxygen and azomethine nitrogen in coordination to the central metal ion. The magnetic moment values of the manganese(II) complexes are in the 5.85-6.13 B.M. range, suggesting a high spin state in these complexes. Based on these spectral studies tetrahedral geometry for the manganese(II) complexes and octahedral geometry for the molybdenum complexes has been proposed. In the case of the oxovanadium complexes vanadium is in the penta and hexa coordinated environments. Compounds have been synthesized in an open vessel under microwave irradiation (MWI) using a domestic microwave oven. The reaction time decreases from hours to minutes with improved yield as compared to conventional heating. The free ligands and their metal complexes have been tested in vitro against a number of microorganisms in order to assess their antimicrobial properties. The results indicate that the ligands and their respective metal derivatives possess antimicrobial properties.

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confidence: 88%

“…Further, the appearance of a strong band in the 940-980 cm )1 region in the vanadium complexes may be assigned to V=O stretching vibrations. In the case of the spectra of the molybdenum complexes some new bands in the regions 920-910 and 900-890 cm )1 may be assigned to m asym (O=Mo=O) and m asym (O=Mo=O) indicating a cis-MoO 2 structure[25].…”

mentioning

confidence: 94%

Spectroscopic and Biochemical Studies of Some Manganese(II), Oxovanadium(V) and Dioxomolybdenum(VI) Complexes S/O and N Donor Agents Synthesized under Microwave Conditions

Garg

Saini

Fahmi

et al. 2006

Transition Met Chem

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“…Their characterisation can be consulted in [9][10][11], although, to our best knowledge, a detailed assignment of IR and NMR signals for H 2 L 3 was not reported. In order to perform a rigorous comparison with its copper(I) complex, the 1 H NMR spectrum of H 2 L 3 (vide infra) was recorded on same apparatus using the same solvent.…”

Section: Synthesis Of Ligandsmentioning

confidence: 99%

Copper complexes of imidazole-2-, pyrrole-2- and indol-3-carbaldehyde thiosemicarbazones: Inhibitory activity against fungi and bacteria

Rodrı́guez-Argüelles

López-Silva

Sanmartı́n

et al. 2005

Journal of Inorganic Biochemistry

145

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Antifungicidal, antibacterial and antifertility activities of biologically active heterocyclic thiosemicarbazones and their coordination complexes with the dimethylsilicon moiety

Singh

Goyal

1991

Applied Organom Chemis

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IndiaSynthetic, structural and biological aspects of trigonal-bipyramidal, Me,Si(NS)CI and octahedral, Me2Si(NS)2 types of organosilicon(1V) complexes of heterocyclic thiosemicarbazones (N-SH) have been described. The complexes were characterized by elemental analysis, molecular weight determination, conductance measurements and electronic, infrared, 'H and I3C NMR spectral studies. Some ligands and their corresponding dimethylsilicon(1V) complexes have been tested for their effects on several pathogenic fungi and bacteria. Two representative complexes have also been found to act as sterilizing agents by reducing the production of sperm in male mice.

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Structural Features and Biological Studies of Dioxomolybdenum(VI) Complexes of Thiosemicarbazones

Cited by 9 publications

References 8 publications

Spectroscopic and Biochemical Studies of Some Manganese(II), Oxovanadium(V) and Dioxomolybdenum(VI) Complexes S/O and N Donor Agents Synthesized under Microwave Conditions

Spectroscopic and Biochemical Studies of Some Manganese(II), Oxovanadium(V) and Dioxomolybdenum(VI) Complexes S/O and N Donor Agents Synthesized under Microwave Conditions

Copper complexes of imidazole-2-, pyrrole-2- and indol-3-carbaldehyde thiosemicarbazones: Inhibitory activity against fungi and bacteria

Antifungicidal, antibacterial and antifertility activities of biologically active heterocyclic thiosemicarbazones and their coordination complexes with the dimethylsilicon moiety

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