Electrochemical examination of mixed-ligand cobalt(III) complexes with tetraazamacrocyclic ligand and heterocyclic dithiocarbamates
dc.creator | Jovanović, Vladislava M. | |
dc.creator | Babić-Samardžija, Ksenija | |
dc.creator | Sovilj, Sofija P. | |
dc.date.accessioned | 2020-09-15T14:42:41Z | |
dc.date.available | 2020-09-15T14:42:41Z | |
dc.date.issued | 2001 | |
dc.identifier.issn | 1040-0397 | |
dc.identifier.uri | https://cer.ihtm.bg.ac.rs/handle/123456789/3656 | |
dc.description.abstract | Electrochemical stability of eight complexes of the general formula [co 111 Rdtc(1-8)cyclam](ClO 4 ) 2 , where cyclam=1,4,8,11-tetraazacyclotetradecane and Rdtc - (1-8)=4-morpholine (Morphdtc), 4-thiomorpholine (Timdtc), 4-piperazine (Pzdtc), N-methyl piperazine (N-Mepzdtc), piperidine (Pipdtc), 2-, 3- or 4-methylpiperidine (2-, 3- or 4-Mepipdtc) dithiocarbamates, respectively, were studied. The substances were examined in aqueous NaClO 4 solution and nonaqueous LiClO 4 in CH 3 CN solution by cyclic voltammetry. In aqueous solution, macrocyclic ligand cyclam is characterized by the anodic peak at 0.95 V. The Rdtc - ligands have two anodic peaks, one in the region 0.25-0.30 V and the other in the 0.78-0.95 V region. Absence of these anodic peaks in the case of the complexes indicates that coordination to cobalt(III) stabilizes both cyclam and Rdtc - ligands, but reversible peaks in the range -0.68 to -0.78 V support the Co(III) redox reaction. In nonaqueous solutions cyclam has one anodic peak at 1.75 V. The ligands with heteroatom in the ring (Morphdtc, Timdtc, Pzdtc, N-Mepzdtc) have two anodic peaks, while the other four ligands (Pipdtc, 2-, 3- and 4-Mepipdtc) have only one anodic peak. In nonaqueous solution again, coordination to Co(III) ion stabilizes the Rdtc - ligands and contrary to aqueous solution no Co(III) redox reaction occurs, indicating a greater stability of the complexes in this media. Finally, the electrochemical results are compared with spectroscopic data obtained previously. | en |
dc.publisher | Wiley-VCH Verlag GmbH | |
dc.relation | Ministry of Science and Technology of the Republic Serbia (Project 02E35) | |
dc.relation | Ministry of Science and Technology of the Republic Serbia (Project 02E20) | |
dc.rights | restrictedAccess | |
dc.source | Electroanalysis | |
dc.subject | Aqueous solution | |
dc.subject | binding kinetics | |
dc.subject | Cobalt(III) complexes | |
dc.subject | complex formation | |
dc.subject | cyclam | |
dc.subject | cyclam derivative | |
dc.subject | Cyclic voltammetry | |
dc.subject | dithiocarbamic acid derivative | |
dc.subject | electrochemical analysis | |
dc.subject | Glassy carbon | |
dc.subject | heterocyclic compound | |
dc.subject | ligand binding | |
dc.subject | macrocyclic compound | |
dc.subject | molecular stability | |
dc.subject | Nonaqueous solution | |
dc.subject | oxidation reduction reaction | |
dc.subject | piperidine derivative | |
dc.subject | review | |
dc.subject | spectroscopy | |
dc.subject | thiomorpholine derivative | |
dc.title | Electrochemical examination of mixed-ligand cobalt(III) complexes with tetraazamacrocyclic ligand and heterocyclic dithiocarbamates | en |
dc.type | article | en |
dc.rights.license | ARR | |
dcterms.abstract | Совиљ, Софија П.; Бабић-Самарджија, Ксенија; Јовановић, Владислава М.; | |
dc.citation.volume | 13 | |
dc.citation.issue | 13 | |
dc.citation.spage | 1129 | |
dc.citation.epage | 1135 | |
dc.citation.rank | M21 | |
dc.identifier.doi | 10.1002/1521-4109(200109)13:13<1129::AID-ELAN1129>3.0.CO;2-K | |
dc.identifier.scopus | 2-s2.0-0034797910 | |
dc.type.version | publishedVersion |