dc.contributor.author | Drouza, Chryssoula | en |
dc.contributor.author | Stylianou, Marios | en |
dc.contributor.author | Papaphilippou, Petri Ch | en |
dc.contributor.author | Keramidas, Anastasios D. | en |
dc.creator | Drouza, Chryssoula | en |
dc.creator | Stylianou, Marios | en |
dc.creator | Papaphilippou, Petri Ch | en |
dc.creator | Keramidas, Anastasios D. | en |
dc.date.accessioned | 2019-11-21T06:18:46Z | |
dc.date.available | 2019-11-21T06:18:46Z | |
dc.date.issued | 2013 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/55416 | |
dc.description.abstract | Reaction of KVO3 with 2-[N,N′-(carboxymethyl)aminomethyl]-5-methylhydroquinone (H4mecah) in aqueous solution at pH 8.2 results in the isolation of mononuclear K2[VV(O)2{Hmecah(-3)}]·2H2O complex. On the other hand, reaction with the 2-[N,N′-(carboxymethyl)aminomethyl]-5-tert-butylhydroquinone (H4tbutcah) under the same conditions gives the tetranuclear mixed-valent complex K 6 [{V V O(μ-O)V IV O}{μ-tbutbicah(-6)}] 2·10.5H2O (H6tbutbicah, 2,2′-({2-[bis(carboxymethyl)amino]-3,6-dihydroxy-4-methylbenzyl}azanediyl)diacetic acid). The structures of both complexes were determined by single-crystal X-ray crystallography. The coordination environment of vanadium ions in both complexes is octahedral, with four out of the six positions to be occupied by the two cis carboxylate oxygens, one hydroquinonate oxygen, and one amine nitrogen atoms of the ligands' tripod binding sites. The importance of the chelate ring strains in the stabilization of the p-semiquinone radical is also discussed. A protonation of the ligated to vanadium(IV) ion hydroquinonate oxygen at low pH was revealed by continuous wave (cw) X-band electron paramagnetic resonance (EPR) and UV-vis spectroscopies. © 2012 IUPAC. | en |
dc.source | Pure and Applied Chemistry | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84873114392&doi=10.1351%2fPAC-CON-12-07-04&partnerID=40&md5=15a84ee6551fac47515a310f6d109dc3 | |
dc.subject | Synthesis | en |
dc.subject | Synthesis (chemical) | en |
dc.subject | Oxygen | en |
dc.subject | Paramagnetism | en |
dc.subject | Vanadium compounds | en |
dc.subject | X ray crystallography | en |
dc.subject | Ligands | en |
dc.subject | Phenols | en |
dc.subject | Oxovanadium | en |
dc.subject | Amine nitrogen atoms | en |
dc.subject | Carboxylation | en |
dc.subject | Carboxymethyl | en |
dc.subject | Chelate ring | en |
dc.subject | Continuous waves | en |
dc.subject | Coordination environment | en |
dc.subject | Electron paramagnetic resonance (EPR) | en |
dc.subject | Electron resonance | en |
dc.subject | Hydroquinone | en |
dc.subject | Iminodiacetic | en |
dc.subject | Mixed-valent complexes | en |
dc.subject | Oxovanadium compounds | en |
dc.subject | Paramagnetic resonance | en |
dc.subject | Single crystal X-ray crystallography | en |
dc.subject | Ultraviolet visible spectroscopy | en |
dc.subject | UV-vis spectroscopy | en |
dc.subject | Vanadium ions | en |
dc.subject | X-ray structure | en |
dc.title | Structural and electron paramagnetic resonance (EPR) characterization of novel vanadium(V/IV) complexes with hydroquinonate-iminodiacetate ligands exhibiting "noninnocent" activity | en |
dc.type | info:eu-repo/semantics/article | |
dc.identifier.doi | 10.1351/PAC-CON-12-07-04 | |
dc.description.volume | 85 | |
dc.description.issue | 2 | |
dc.description.startingpage | 329 | |
dc.description.endingpage | 342 | |
dc.author.faculty | 002 Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences | |
dc.author.department | Τμήμα Χημείας / Department of Chemistry | |
dc.type.uhtype | Article | en |
dc.description.notes | <p>Cited By :3</p> | en |
dc.source.abbreviation | Pure Appl.Chem. | en |
dc.contributor.orcid | Keramidas, Anastasios D. [0000-0002-0446-8220] | |
dc.contributor.orcid | Drouza, Chryssoula [0000-0002-2630-4323] | |
dc.gnosis.orcid | 0000-0002-0446-8220 | |
dc.gnosis.orcid | 0000-0002-2630-4323 | |