dc.contributor.author | Constantinides, Christos P. | en |
dc.contributor.author | Koutentis, Panayiotis Andreas | en |
dc.contributor.author | Rawson, J. M. | en |
dc.creator | Constantinides, Christos P. | en |
dc.creator | Koutentis, Panayiotis Andreas | en |
dc.creator | Rawson, J. M. | en |
dc.date.accessioned | 2019-11-21T06:17:51Z | |
dc.date.available | 2019-11-21T06:17:51Z | |
dc.date.issued | 2012 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/55363 | |
dc.description.abstract | 7-(4-Fluorophenyl) and 7-phenyl-substituted 1,3-diphenyl-1,4-dihydro-1,2,4- benzotriazin-4-yl radicals were characterized by X-ray diffraction analysis and variable-temperature magnetic susceptibility studies. The radicals pack in 1D π stacks of equally spaced slipped radicals with interplanar distances of 3.59 and 3.67 Å and longitudinal angles of 40.97 and 43.47, respectively. Magnetic-susceptibility studies showed that both radicals exhibit antiferromagnetic interactions. Fitting the magnetic data revealed that the behavior is consistent with 1D regular linear antiferromagnetic chain with J=-12.9 cm-1, zJ'=-0.4 cm-1, g=2.0069 and J=-11.8 cm -1, zJ'=-6.5 cm-1, g=2.0071, respectively. Magnetic-exchange interactions in benzotriazinyl radicals are sensitive to the degree of slippage, and inter-radical separation and subtle changes in structure alter the fine balance between ferro- and antiferromagnetic interactions. Radically antiferromagnetic: The slippage of benzotrazinyl radicals inside stacked columns inhibited dimerization and promoted orthogonality | en |
dc.description.abstract | however, the longer interplanar distances weakened the interaction. Magnetic studies revealed 1D antiferromagnetic interactions inside the columns (see figure). Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. | en |
dc.source | Chemistry - A European Journal | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84868341296&doi=10.1002%2fchem.201202784&partnerID=40&md5=de3ccf56599a24d3c68588f4a486c654 | |
dc.subject | Orthogonality | en |
dc.subject | X ray diffraction analysis | en |
dc.subject | Antiferromagnetism | en |
dc.subject | Magnetic susceptibility | en |
dc.subject | Benzotriazinyl radical | en |
dc.subject | Antiferro-magnetic interactions | en |
dc.subject | heterocycles | en |
dc.subject | Variable temperature | en |
dc.subject | Magnetic data | en |
dc.subject | Antiferroelectricity | en |
dc.subject | Antiferromagnetic chain | en |
dc.subject | Antiferromagnetics | en |
dc.subject | benzotriazinyls | en |
dc.subject | Heisenberg | en |
dc.subject | heterocyclic radicals | en |
dc.subject | Interplanar distance | en |
dc.subject | Linear chain | en |
dc.subject | magnetic properties | en |
dc.subject | Magnetic studies | en |
dc.subject | Stacking interaction | en |
dc.subject | stacking interactions | en |
dc.title | Antiferromagnetic interactions in 1D Heisenberg linear chains of 7-(4-fluorophenyl) and 7-phenyl-substituted 1,3-diphenyl-1,4-dihydro- 1,2,4-benzotriazin-4-yl radicals | en |
dc.type | info:eu-repo/semantics/article | |
dc.identifier.doi | 10.1002/chem.201202784 | |
dc.description.volume | 18 | |
dc.description.issue | 48 | |
dc.description.startingpage | 15433 | |
dc.description.endingpage | 15438 | |
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 :22</p> | en |
dc.source.abbreviation | Chem.Eur.J. | en |
dc.contributor.orcid | Koutentis, Panayiotis Andreas [0000-0002-4652-7567] | |
dc.contributor.orcid | Constantinides, Christos P. [0000-0001-6364-1102] | |
dc.gnosis.orcid | 0000-0002-4652-7567 | |
dc.gnosis.orcid | 0000-0001-6364-1102 | |