Abstract
Copper (II) paratolysulfate has been synthesized and characterized by thermo-gravimetric (TG) measurements and differential scanning calorimetric (DSC) analysis. This salt can easily lose all crystal water and the dehydrated salt does not deliquesce in the air. It is found for the first time that the complex of Cu(p-OTs)_(2)/ethanolamine(1∶1) can catalyze the oxidation of 1,1′-bi-2-naphthol in DMSO and DMF, while the process is difficult to perform in H_(2)O and CH_(3)OH. The electrochemical behaviors of both Cu(p-OTs)_(2) and its complexes with ethanolamine have been studied on platinum electrode in DMSO, DMF, (CH_(3)OH) and H_(2)O respectively. The complexes of various copper salts with ethanolamine are also studied by cyclic voltammetry in different solvents. It is concluded that the two one-electron steps are essential condition for the oxidation of 1,1′-bi-2-naphthol.
Keywords
Copper paratolysulfate, Mimetic enzyme, Electrochemistry, 1, 1′-bi-2-naphthol
Publication Date
2004-08-28
Online Available Date
2004-08-28
Revised Date
2004-08-28
Received Date
2004-08-28
Recommended Citation
Ji-guo SONG, Pei-kang SHEN.
Studies on the Electrochemical Behavior of Copper Paratolysulfate and its Complexes[J]. Journal of Electrochemistry,
2004
,
10(3): 271-278.
DOI: 10.61558/2993-074X.1574
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol10/iss3/4
References
[1]SolomonEI,BaldwinMJ,LoweryMD.Electronicstructureofactivesitesincopperproteins:contributionstoreactivity[J].Chem.Rev.,1992,92:521.
[2]WangY,DuBoisJL,HedmanB,etal.Catalyticgalactoseoxidasemodels:biomimeticCu(II) phenoxyl radicalreactivity[J].Science,1998,279:537.
[3]CollmanJP,FuL,HerrmannPC,etal.Afunctionalmodelrelatedtocytochromecoxidaseanditselectrocatalyticfour electronreductionofO2[J].Science,1997,275:949.
[4] CarbralMF,CabralJdeO,BouwmanE,etal.Cyclicvoltammetricstudiesofcopper(II)complexeswithsomebis(imidazole)bis(thioether)ligands.TheX raycrystalstructureof(1,6 bis (5(4) imidazolyl) 2,5 dithiahexane)dichlorocopper(II)[J].Inorg.Chem.Acta,1992,196:137.
[5]WieghardtK,BossekU,VenturD,etal.Assemblyandstructuralcharacterizationofbinuclearμ oxo di μ acetatobridgedcomplexesofmanganese(III).Analoguesofthedi iron(III)centreinHemerythrin[J].J.Chem.Soc.Chem.Commun.,1985:347.
[6] TanDM,LiHH,WangB,etal.Anoveldominoreactionof1,1â² bi 2 naphtholcatalyzedbycopper(II) aminecomplexes[J].ChineseJ.Chem.,2001,19:91.
[7] HouseHO,FengE,MeitesL.Acomparisonofvarioustetraalkylammoniumsaltassupportingelectrolytesinorganicelectrochemicalreactions[J].J.Org.Chem.,1971,36:2371.
[8]AhuwaliaVK,TehimAK.Synthesisofsome1,3,6 trioxygenatedisopentenylatedxanthones[J].Tetrahedron,1984,40:3303.
Included in
Materials Chemistry Commons, Materials Science and Engineering Commons, Physical Chemistry Commons