Electrosynthesis of coordination compounds by the dissolution of sacrificial metal anodes

Chakravorti, M. C.; Subrahmanyam, G.

doi:10.1016/0010-8545(94)80065-0

Cited by 54 publications

(24 citation statements)

References 107 publications

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“…The corresponding magnitude is an indicative of the anodic process that takes place. 3 ] complexes, depending on the nature of the ligand [30]. When the substituents on the pyrimidine ring do not cause a too much great steric hindrance, Co(III) complexes are obtained; it was confirmed by X-ray difraction in For all of the cobalt complexes, the value obtained for the electrochemical efficiency was 0.5 mol·F -1 , regardless of the final oxidation state of the metal in the final complex, which allows one to conclude that electrochemical oxidation, takes the metal to oxidation state II.…”

Section: Electrochemical Efficiency and Reaction Mechanismsmentioning

confidence: 97%

“…I. e., the proligand 5- 3 ]·H 2 O·(CH 3 CH 2 ) 2 O after recrystallization from an acetonitrile-diethyl ether mixture [27]. In this case, both sulfonamide and phenol hydrogen atoms were lost in the electrochemical procedure and the ligand exhibits a terdentate dianionic behavior.…”

Section: Introductionmentioning

confidence: 94%

“…D. G. Tuck and coworkers [1,2] developed this method, not only for coordination complexes but also for organometallic compounds. Several reviews reporting the possibilities of this synthetic procedure have been previously published [3][4][5][6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

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The use of sacrificial anodes for the electrochemical synthesis of metallic complexes

Rodríguez

García‐Vázquez

2015

Coordination Chemistry Reviews

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Section: Electrochemical Efficiency and Reaction Mechanismsmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 94%

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The use of sacrificial anodes for the electrochemical synthesis of metallic complexes

Rodríguez

García‐Vázquez

2015

Coordination Chemistry Reviews

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“…18 and references cited therein). A considerable advantage of this method is the absence of additional anions in solution (which cannot be avoided in the syntheses with transition metal salts).…”

mentioning

confidence: 96%

Synthesis of heteropolynuclear CuI and PdII complexes with polymeric 2,2′-biquinoline-containing ligands and investigation of their catalytic activity in the Sonogashira couplings

et al. 2010

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A method for electrosynthesis of heteropolynuclear biquinoline containing Cu I and Pd II complexes using sacrificial Cu and Pd anodes was developed. The sequence of anode dissolution (first Pd and then Cu) was important for the synthesis of the complex. The opposite sequence of dissolution resulted in oxidation of the initially formed Cu I ions to Cu II . The obtained Cu I and Pd II complexes with polymer ligands had high catalytic activity in the reaction of aryl halides with phenylacetylene giving rise to a C(sp 2 )-C(sp) bond. The yield of arylphenylacetylene in the presence of 0.1 mol.% of Pd catalyst in relation to the starting halide was 50-90% depend ing on the nature of the aryl halide.

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“…The composition of these compounds was determined. A new method for anodic synthesis of these compounds was developed.The electrochemical method simplifies synthesis of known compounds [135] and makes it possible to synthesize compounds that cannot be obtained otherwise [6]. Moreover, the advantage of the anodic synthesis is in that the process can be controlled and performed in mild conditions with a high yield and purity of the final products [7].…”

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confidence: 99%

Electrochemical Synthesis of Complex Compounds of Transition Elements with Carboxyl- and Carbonyl-containing Ligands

2005

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Complex compounds of d-and f-elements with carboxyl-and carbonyl-containing ligands were synthesized by the electrochemical method. The influence exerted by a number of factors on the process course was studied. The dependence of the electrosynthesis parameters on the composition of the forming compounds was established. The composition of these compounds was determined. A new method for anodic synthesis of these compounds was developed.The electrochemical method simplifies synthesis of known compounds [135] and makes it possible to synthesize compounds that cannot be obtained otherwise [6]. Moreover, the advantage of the anodic synthesis is in that the process can be controlled and performed in mild conditions with a high yield and purity of the final products [7].Despite that the electrosynthesis is one of the oldest methods for synthesis of coordination compounds [8], the analysis of the anodic synthesis methods in [137, 9 313] shows that many problems concerning the theory and practical application of the method have not been studied.Transition-metal carboxylates of composition M(O 2 CR) n (M = Cr; R = C 2 H 5 or C 6 H 5 ; n = 3; M = Mn, Fe, or Ni; R = CH 3 , C 2 H 5 , C 6 H 5 , or n-C 7 H 15 ; n = 2) have been prepared [14] by electrochemical oxidation of the corresponding metals in solutions of carboxylic acids RCOOH in acetonitrile. In [15317], monocarboxylic acids containing one to four atoms in the carbon chain were successfully used to synthesize M(O 2 CR) 2 salts. Oxalate complexes of iron and copper were synthesized by the electrochemical method in [18]. On the whole, publications devoted to carboxylate complexes are scarce and analyze a rather small number of the ligands.The goal of this study was to develop new original methods that would enable application of the electrochemical synthesis in a wider range and to a larger number of objects and make it possible to perform directed syntheses in which the composition of the forming products is controlled by varying the process conditions (ligand concentration, temperature, solvent, and electrode potential), and also to compare the properties of compounds synthesized by electrochemical methods with those produced by chemical methods. Acetylacetonates of rare-earth elements (REE) were synthesized to confirm the suggestion that substances exhibiting a tendency toward sublimation, which could not be synthesized previously by other methods [19,20], can be obtained by electrochemical synthesis. EXPERIMENTALThe installation for anodic synthesis (Fig. 1) comprised a three-electrode cell, PI-50-1 potentiostat, Fig. 1. Schematic of a three-electrode cell for electrochemical anodic synthesis (1) Thermostating jacket, (2) stirrer, (3) outlet, (4) inlet, (5) separator, (6) working electrode, (7) auxiliary electrode, and (8) reference electrode.

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Electrosynthesis of coordination compounds by the dissolution of sacrificial metal anodes

Cited by 54 publications

References 107 publications

The use of sacrificial anodes for the electrochemical synthesis of metallic complexes

The use of sacrificial anodes for the electrochemical synthesis of metallic complexes

Synthesis of heteropolynuclear CuI and PdII complexes with polymeric 2,2′-biquinoline-containing ligands and investigation of their catalytic activity in the Sonogashira couplings

Electrochemical Synthesis of Complex Compounds of Transition Elements with Carboxyl- and Carbonyl-containing Ligands

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