Journal ArticleDOI
Structural elucidation of o-vanillin isonicotinoyl hydrazone and its metal complexes
S. Hingorani,B. V. Agarwala +1 more
TLDR
In this article, a series of complexes with the tridentate dibasic Schiff base ligand o-vanillin isonicotinoyl hydrazone (o-VINH) were prepared and characterized by i.a.p. and electronic spectral studies, magnetic susceptibility measurements and t.m.Abstract:
A new series of complexes with the tridentate dibasic Schiff base ligand o-vanillin isonicotinoyl hydrazone (o-VINH) were prepared and characterized by i.r., 1H n.m.r. and electronic spectral studies, magnetic susceptibility measurements and t.g.a. The disappearance of low field signals due to OH, NH protons at 10.23 and 9.31 p.p.m. and downfield shift of the −CH=N proton signal at 8.17 p.p.m. in the n.m.r. spectrum confirms the involvement of these groups in coordination. Both t.g.a. and i.r. spectral data show evidence for one molecule of coordinated H2O. These results taken in conjunction with electronic spectral data allow assignation of tetrahedral geometry for manganese(II), nickel(II) and palladium(II) complexes but a square planar configuration to cobalt(II), copper(II) amd zinc(II) complexes.read more
Citations
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Studies on mononuclear chelates derived from substituted Schiff-base ligands (part 6): synthesis and characterization of a new 3-ethoxysalicyliden-p-aminoacetophenoneoxime and its complexes with cobalt(II), nickel(II), copper(II) and zinc(II)
Erdal Canpolat,Mehmet Kaya +1 more
TL;DR: Schiff base complexes of cobalt, nickel, copper, and zinc with 3-ethoxysalicyliden-p-aminoacetophenoneoxime (HL) were prepared and characterized on the basis of elemental analyses, IR, 1H- and 13C-NMR, electronic spectra, magnetic susceptibility measurements, molar conductivity and thermogravimetric analyses as discussed by the authors.
Journal ArticleDOI
Synthesis, magnetic and special studies of some novel metal complexes of Cu(II), Ni(II), Co(II), Zn[II), Nd(III), Th(IV), and UO2(VI) with schiff bases derived from sulfa drugs, viz., Sulfanilamide/Sulfamerazine and o-vanillin
R. C. Maurya,Pratibha Patel +1 more
TL;DR: In this article, two scruff base ligands viz ℴ-vanillin-sulfanilamide (ℴVSaH) and order vanillin sulfamerazine (VSmrzH), and their bipositive, tripositive tetrapositive and uranyl metal complexes were synthesized and characterized by elemental analysis, IR spectra, thermal analysis, magnetic suceptibility measurements, diffuse reflectance spectra and molar conductance measurements.
Journal ArticleDOI
Synthesis and characterization of N-(o-vanillinidene)-p-anisidine and N, N'-bis(o-vanillinidene)ethylenediamine and their metal complexes
R. C. Maurya,P. Patel,S. Rajput +2 more
TL;DR: In this paper, the mode of chelation of the ligands and geometry of the complex molecules were assigned from the elemental analyses, IR, electronic and NMR spectra, magnetic susceptibility measurements and thermal studies.
Journal ArticleDOI
Synthesis and characterization of Mixed‐Ligand Complexes of Cu(II), Ni(II), Co(II), Zn(II), Sm(III), and U(VI)O2, with a Schiff Base Derived from the Sulfa Drug Sulfamerazine and 2,2′‐Bipyridine
R. C. Maurya,P. Patel,S. Rajput +2 more
TL;DR: In this paper, a new series of mixed-ligand complexes with the Schiff base derived from salicylaldehyde and the sulfa drug sulfamerazine have been synthesized and characterized by IR, NMR, diffuse reflectance spectra and magnetic, thermal, and molar conductance measurements.
Journal ArticleDOI
In-vitro antibacterial, antifungal and cytotoxic properties of metal-based furanyl derived sulfonamides
TL;DR: A new series of antibacterial and antifungal furanyl-derived sulfonamides and their cobalt, copper, nickel, nickel and zinc metal complexes have been synthesized, characterized and screened for their in-vitro antibacterial activity against four Gram-negative and two Gram-positive bacterial strains.
References
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Chemistry of the elements
TL;DR: In this article, the origins of the elements, isotopes and atomic weights Chemical periodicity and the periodic table were discussed, including the following elements: Hydrogen Lithium, sodium, potassium, rubidium, caesium and francium Beryllium, magnesium, calcium, strontium, barium and radium Boron Aluminium, gallium, indium and thallium Carbon Silicon Germanium, tin and lead Nitrogen Phosphorus Arsenic, antimony and bismuth Oxygen Sulfur Selenium, tellurium
Journal ArticleDOI
A spectroscopic study of tin(IV) complexes with bidentate Schiff bases
N.S. Biradar,V.H. Kulkarni +1 more
TL;DR: In this article, the complexes of tin(IV) chloride with bidentate Schiff bases have been prepared and the analytical data indicate 1:2 stochastic geometry, and the complexes are yellow in colour, nonelectrolytes in DMF and appear to be octahedral.
Journal ArticleDOI
Preparation, properties, crystal and molecular structure of uranyl(VI) complexes with a new cyclic schiff base compartmental ligand
TL;DR: In this paper, the structure of the uranyl(VI) complex with the ligand 1,7,15,21-tetra-aza-4,18-dithia-11,25-dichloro 8,22-bis- meta diphenyl cyclophane-gb-7,14,21,28 has been determined by X-ray crystallography.
Journal ArticleDOI
New metal complexes derived from 1-acetyl-trimethylammonium chloride-4-phenyl-3-thiosemicarbazide with some dipositive metal ions
A. A. El-asmy,M. M. Mostafa +1 more
TL;DR: In this paper, the preparation and chatacterization of dipositive metal ion complexes derived from 1-acetyltrimethylammonium chloride-4-phenyl-3-thiosemicarbazide [(ATPTS)] Cl is reported.
Journal ArticleDOI
Stereochemical changes in anisaldehyde thiosemicarbazone complexes
B. V. Agarwala,Pindi S. N. Reddy +1 more
TL;DR: In this article, the room-temperature magnetic moment, i.r. and u.v. spectra, ligand field parameters and thermal characteristics of colored metal complexes of anisaldehyde thiosemicarbazone (HATSC) and 4-phenylthIosmic-Bazone(HAPTSC) of general formula [M(ATSC)]·2H2O are described.