Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/25561
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dc.contributor.authorVershilovskaya, Irina V.-
dc.contributor.authorStefani, Stefano-
dc.contributor.authorVERSTAPPEN, Pieter-
dc.contributor.authorNgo, Thien H.-
dc.contributor.authorScheblykin, Ivan G.-
dc.contributor.authorDehaen, Wim-
dc.contributor.authorMAES, Wouter-
dc.contributor.authorKruk, Mikalai M.-
dc.date.accessioned2018-02-27T13:14:47Z-
dc.date.available2018-02-27T13:14:47Z-
dc.date.issued2017-
dc.identifier.citationMacroheterocycles, 10(3), p. 257-267-
dc.identifier.issn1998-9539-
dc.identifier.urihttp://hdl.handle.net/1942/25561-
dc.description.abstractBoth the ground (S0) and the lowest singlet excited states (S1) for a series of 5,10,15,20-tetraarylporphyrins consisting of two symmetrically and four asymmetrically substituted derivatives (A4, AB3, trans-A2B2, cis-A2B2, A3B and B4, where A=phenyl and B=mesityl) are studied by absorption and fluorescence spectroscopies. The rotational degree of freedom of the aryl rings is found to play a crucial role in the discrimination between the radiative and radiationless decays of the S1 states. This feature is dramatically enhanced upon going from the free base molecules to their mono- and diprotonated forms because of the nonplanar macrocycle conformation of the latters. The progressive A to B replacement of the aryl substituents leads to additive spectral changes over the whole series in the free base form. For both mono- and diprotonated species such a gradual additive pattern is broken by a “spectral jump” from the trans to the cis derivative, which is proposed to be a signature of the transition between two macrocycle conformations with different flexibility.-
dc.language.isoen-
dc.subject.otherPorphyrin; meso-substitution; fluorescence; protonation; macrocycle conformation-
dc.titleSpectral-Luminescent Properties of Meso-Tetraarylporphyrins Revisited: the Role of Aryl Type, Substitution Pattern and Macrocycle Core Protonation-
dc.typeJournal Contribution-
dc.identifier.epage267-
dc.identifier.issue3-
dc.identifier.spage257-
dc.identifier.volume10-
local.bibliographicCitation.jcatA1-
local.type.refereedRefereed-
local.type.specifiedArticle-
dc.identifier.doi10.6060/mhc160962n-
dc.identifier.isi000422740500001-
item.fulltextWith Fulltext-
item.accessRightsOpen Access-
item.contributorDehaen, Wim-
item.contributorStefani, Stefano-
item.contributorVERSTAPPEN, Pieter-
item.contributorScheblykin, Ivan G.-
item.contributorVershilovskaya, Irina V.-
item.contributorNgo, Thien H.-
item.contributorMAES, Wouter-
item.contributorKruk, Mikalai M.-
item.fullcitationVershilovskaya, Irina V.; Stefani, Stefano; VERSTAPPEN, Pieter; Ngo, Thien H.; Scheblykin, Ivan G.; Dehaen, Wim; MAES, Wouter & Kruk, Mikalai M. (2017) Spectral-Luminescent Properties of Meso-Tetraarylporphyrins Revisited: the Role of Aryl Type, Substitution Pattern and Macrocycle Core Protonation. In: Macroheterocycles, 10(3), p. 257-267.-
item.validationecoom 2019-
crisitem.journal.issn1998-9539-
crisitem.journal.eissn1998-9539-
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