CER - Central Repository
Institute of Chemistry, Technology and Metallurgy
    • English
    • Српски
    • Српски (Serbia)
  • English 
    • English
    • Serbian (Cyrilic)
    • Serbian (Latin)
  • Login
View Item 
  •   Central Repository
  • IHTM
  • Radovi istraživača / Researchers' publications
  • View Item
  •   Central Repository
  • IHTM
  • Radovi istraživača / Researchers' publications
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Molecular structure in correlation with electrochemical properties of mixed-ligand cobalt(III) complexes

Korelacija molekulske strukture i elektrohemijskih svojstava kobalt(III) kompleksa sa mešovitim ligandima

Thumbnail
2008
431.pdf (452.3Kb)
Authors
Babić-Samardžija, Ksenija
Jovanović, Vladislava M.
Sovilj, Sofija P.
Article (Published version)
Metadata
Show full item record
Abstract
Four mixed-ligand cobalt(III) complexes (1-4) of the general formula [Co(Rdtc)cyclam](ClO4)2 and [Co(Rac)cyclam](ClO4)2 (cyclam = 1,4,8,11-tetra- azacyclotetradecane; Rdtc = thiomorpholine-(Timdtc) or 2-methylpiperidine-(2-Mepipdtc) dithiocarbamates; Rac = 1,1,1,5,5,5-hexafluoro-2,4-pentanedionato (Hfac) or 2,2,6,6-tetramethyl-3,5-heptanedionato (Tmhd), respectively) were electrochemically examined on a glassy carbon and an iron electrode in perchloric acid solution. The obtained results showed the influence of these complexes on hydrogen evolution, the oxygen reduction reaction and iron dissolution. The exhibited effects of the complexes on these reactions depend on structure related to the bidentate dithiocarbamato or b-diketonato ligand. The electrochemical properties of the complexes were correlated with molecular structure and parameters derived from spectral analysis and molecular modeling.
Četiri mešovito-ligandna kobalt(III) kompleksa opšte formule [Co(Rdtc)cyclam](ClO4)2 i [Co(Rac)cyclam](ClO4)2 (cyclam = 1,4,8,11-tetraazaciklotetradekan; Rdtc = tiomorfolin--(timdtc) ili 2-metilpiperidin-(2-mepipdtc) ditiokarbamat; Rac = 1,1,1,5,5,5-heksafluoro- -2,4-pentanedionato (hfac) ili 2,2,6,6-tetrametil-3,5-heptanedionato (tmhd)) ispitana su elektrohemijski na elektrodama od staklastog ugljenika i gvožđa u rastvoru perhlorata. Dobijeni rezultati ukazuju na to da ovi kompleksi utiču na izdvajanje vodonika, redukciju kiseonika kao i na rastvaranje gvožđa. Elektrohemijsko ponašanje zavisi od strukture koordinovanog bidentatnog ditiokarbamato ili b-diketonato liganda. Molekulska struktura kompleksnih jedinjenja određena je na osnovu spektroskopskih analiza i molekulskog modelovanja. Elektrokatalitički i inhibitorski efekat povezan je sa molekulskom strukturom kompleksa.
Keywords:
cobalt(III) complexes / cyclam / dithiocarbamato ligands / b-diketonato ligands / MOT
Source:
Journal of the Serbian Chemical Society, 2008, 73, 7, 761-770
Publisher:
  • Serbian Chemical Society
Projects:
  • Novi materijali za primenu u gorivim spregovima sa polimernom membranom (RS-142056)

DOI: 10.2298/JSC0807761B

ISSN: 0352-5139

WoS: 000257846900009

Scopus: 2-s2.0-47049118703
[ Google Scholar ]
1
2
URI
http://cer.ihtm.bg.ac.rs/handle/123456789/433
Collections
  • Radovi istraživača / Researchers' publications
Institution
IHTM

DSpace software copyright © 2002-2015  DuraSpace
About CeR – Central Repository | Send Feedback

OpenAIRERCUB
 

 

All of DSpaceInstitutionsAuthorsTitlesSubjectsThis institutionAuthorsTitlesSubjects

Statistics

View Usage Statistics

DSpace software copyright © 2002-2015  DuraSpace
About CeR – Central Repository | Send Feedback

OpenAIRERCUB