scholarly journals Direct Electrochemical Synthesis of Bismuth(III) Phenoxides and their Coordination Compounds

2012 ◽  
Vol 9 (1) ◽  
pp. 381-388 ◽  
Author(s):  
Harpreet Kaur ◽  
Baljit Singh
Keyword(s):  
Elemental Analysis ◽  
Electrochemical Synthesis ◽  
Coordination Compounds ◽  
Supporting Electrolyte ◽  
Spectral Studies ◽  
Electrochemical Reactions ◽  
Hydroxybenzoic Acid ◽  
Platinum Cathode ◽  
Infrared Spectral ◽  
Tetrabutylammonium Chloride

Bismuth(III) phenoxides have been synthesized by electrochemical reactions of 1-naphthol, 2-naphthol, 4-aminophenol, 2-nitrophenol, 4-nitrophenol, 2-hydroxybenzoic acid,p-cresol, phenol, resorcinol, 2-tert-butylphenol and 2-tert-butyl-4-methoxyphenol at sacrificial bismuth anode and inert platinum cathode using tetrabutylammonium chloride as supporting electrolyte. The coordination compounds of these phenols with 1, 10-phenanthroline and 2, 2ʼ-bipyridyl have also been synthesized electrochemically. The solid products separated in the anode compartment have been isolated and characterized by elemental analysis and infrared spectral studies. Current efficiencies of these reactions are quite high.

scholarly journals Electrochemical Synthesis of Organoantimony Compounds and their Coordination Compounds

2019 ◽  
Vol 31 (3) ◽  
pp. 642-646
Author(s):  
Sarbjit Rala
Keyword(s):  
Elemental Analysis ◽  
Electrochemical Synthesis ◽  
Coordination Compounds ◽  
Supporting Electrolyte ◽  
Spectral Studies ◽  
Electrochemical Reactions ◽  
High Current ◽  
Infrared Spectral ◽  
Tetrabutylammonium Chloride

Electrochemical reactions of bromoethane, 1-bromopropane, 1-chlorobutane and chlorobenzene have been carried out in acetonitrile at sacrificial antimony anode using tetrabutylammonium chloride as supporting electrolyte. The products isolated from the anode compartment have been characterized by elemental analysis and infrared spectral studies and are identified as organoantimony compounds. Coordination compounds of same have been synthesized with ligand (1,10-phenanthroline and 2,2'-bipyridyl). All these reactions proceed with high current efficiencies.

scholarly journals Electrochemical Reactions at Sacrificial Electrodes: Electrochemical Synthesis of Aluminium(III) Alkoxides and their Coordination Compounds

2009 ◽  
Vol 5 (1) ◽  
pp. 592-597
Author(s):  
Baljit Singh ◽  
Kanchan Bala ◽  
Kishanpal Singh ◽  
Sukhveer Singh
Keyword(s):  
Electrochemical Synthesis ◽  
Coordination Compounds ◽  
Electrochemical Reactions ◽  
High Current ◽  
Conductive Additive ◽  
Physical Measurements ◽  
Platinum Cathode ◽  
Tetrabutylammonium Chloride ◽  
Aluminium Anode

Electrochemical   reactions of methanol, ethanol, propan-l-ol, butan-1-ol, pentan-1-ol, hexan-1-ol, heptan-1-ol, octan-1-ol, nonan-1-ol and decan-1-ol (ROH) at sacrificial aluminium anode and inert platinum cathode in the presence of tetrabutylammonium chloride as a conductive additive and acetonitrile as solvent yield aluminium(III) alkoxides. On refluxing with ligand (L) {where L = 2,2’-bipyridyl and 1,10-phenanthroline} these alkoxides don’t form coordination compounds. However, the coordination compounds have been prepared by electrolyzing the solution of above alcohols in the presence of ligand (L) at aluminium anode. These products have been characterized by microanalysis, physical measurements and IR spectral studies.General formula conform to M(OR)3 and M(OR)3.L.{where M- Aluminium and L- ligand}.All these reactions proceed with high current efficiencies.

scholarly journals Direct Electrochemical Synthesis of Nickel (II) Thiolates and their Coordination Complexes.

2015 ◽  
Vol 11 (9) ◽  
pp. 3973-3978
Author(s):  
Baljit Singh ◽  
Shavina Shavina
Keyword(s):  
Aqueous Solution ◽  
Solid State ◽  
Coordination Compounds ◽  
Supporting Electrolyte ◽  
Coordination Complexes ◽  
Solution Phase ◽  
Metal Anode ◽  
Physical Measurements ◽  
Infrared Spectral ◽  
Tetrabutylammonium Chloride

Metallo organic compounds can be synthesized electrochemically by anodic generation of metal cations by using sacrificial metal anode. Bis-thiolates complexes of Nickel, Ni(SR)2 have been prepared in an H-type cell by electrochemical oxidation of thiols RSH (ethanethiol, 2-propanethiol, 1-butanethiol, 1-pentanethiol and thiophenol) with sacrificial Nickel (Ni) anode and inert Platinum (Pt) cathode in non-aqueous solution of acetonitrile containing tetrabutylammonium chloride  (as supporting electrolyte). On refluxing   with ligand (L)  2,2'-bipyridyl, these thiolates do not form coordination compounds. However, their adducts Ni(SR)2.L have been synthesized electrochemically by adding the ligand to above thiols in solution phase. All these synthesized complexes have been characterized by elemental analysis, infrared spectral data and other physical measurements. All these compounds are in the solid state with excellent yield and associated with high electrochemical efficiency.

scholarly journals Cr(III),Mn(II),Fe(III),Co(II),Ni(II),Cu(II) and Zn(II) Complexes with Diisobutyldithiocarbamato Ligand

2011 ◽  
Vol 8 (4) ◽  
pp. 2020-2023 ◽  
Author(s):  
Mohammad Tarique
Keyword(s):  
Transition Metals ◽  
Spectral Data ◽  
Elemental Analysis ◽  
Coordination Compounds ◽  
Analytical Data ◽  
Spectral Studies

The synthesis of sulphur and nitrogen containing dithiocarbamato ligand derived from diisobutylamine as well as its coordination compounds with 3d series transition metals is presented. These synthesized compounds were characterized on the basis of elemental analysis, conductometric measurements and IR spectral studies. The analytical data showed the stoichiometry 1:2 and 1:3 for the compounds of the types ML2{M=Mn(II), Co(II), Ni(II), Cu(II) and Zn(II)} and M'L3{M'=Cr(III) and Fe(III)} respectively. The conductometric measurements proved the non-electrolytic behaviour of all the compounds. The bidentate nature of dithiocarbamato moiety was confirmed on the basis of IR spectral data.

scholarly journals Synthesis, Spectroscopic and Physicochemical Characterization and Biological Activity of Co(II) and Ni(II) Coordination Compounds with 4-Aminoantipyrine Thiosemicarbazone

2005 ◽  
Vol 3 (3-4) ◽  
pp. 271-288 ◽  
Author(s):  
Ram K. Agarwal ◽  
Surendra Prasad
Keyword(s):  
Coordination Compounds ◽  
Room Temperature ◽  
Magnetic Measurements ◽  
Physicochemical Characterization ◽  
Spectral Studies ◽  
Distorted Octahedral ◽  
Infrared Spectral ◽  
Thermogravimetric Studies ◽  
Antibacterial And Antifungal

We describe the synthesis and characterization of cobalt(II) and nickel(II) coordination compounds of 4[N-(furan-2’-aldimine)amino]antipyrine thiosemicarbazone (FFAAPTS) and 4[N-(4'-nitrobenzalidene) amino]antipyrine thiosemicarbazone (4'-NO2BAAPTS). All the isolated compounds have the general composition MX2(L)(H2O) (M = Co2+or Ni2+; X = Cl, Br, NO3, NCS or CH3COO; L = FFAAPTS or 4'-NO2BAAPTS) and M(ClO4)2(L)2(M = Co2+or Ni2+; L = FFAAPTS or 4'-NO2BAAPTS). Infrared spectral studies indicate that both the thiosemicarbazones coordinate in their neutral form and they act as {N,N,S} tridentate chelating ligands. Room temperature magnetic measurements and electronic spectral studies suggest the distorted octahedral geometries of the prepared complexes. Thermogravimetric studies are also reported and the possible structures of the complexes are proposed. Antibacterial and antifungal properties of these metal-coordination compounds have also been studied.

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