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Effect of chain length on the photophysical properties of pyrene-based molecules substituted with extended chains

Show simple item record Degheili J.A. Moustafa R.M. Patra D. Kaafarani B.R.
dc.contributor.editor 2009 2017-10-03T15:45:41Z 2017-10-03T15:45:41Z 2009
dc.identifier 10.1021/jp8098363
dc.identifier.issn 10895639
dc.description.abstract The important role played by organic conjugated compounds in the ?elds of electronics and optoelectronics has led to a vast ?eld of research concerned with synthesizing various complex structures where π-π stacking plays a vital role. Pyrene-based molecules are examples of compounds which allow ef?cient charge transfer through π-π molecular stacking. Photophysical studies of such compounds have shown similar behavior as that of pyrene, even though they bear two additional conjugated rings and four long alkyl chains. Chain length may have played an effective role in in?uencing the π-π molecular stacking of such molecules. In continuation of our earlier work(Moustafa, R. M.; Degheili, J. A.; Patra, D.; Kaafarani, B. R. J. Phys. Chem. A 2008, 113, 1235-1243), we hereby synthesize and investigate the role of the chain lengths on the photophysical aspects of 2,11-di-tert-butyl-6,7,15,16- tetrakis(alkoxy-alkythio)quinoxaline-[2′,3′:9,10]phenanthro[4, 5-ab-c]phenazine, TQPP-[t-Bu]2-[XR]4(X O, S; R C nH2n+1). Various photophysical parameters such as Stokes shift, ?uorescence lifetime, ?uorescence quantum yield, and radiative and nonradiative rate constants are evaluated for TQPP-[t-Bu]2-[OR] 4 and TQPP-[t-Bu]2-[SR]4 in tetrahydrofuran. The variation of the Stokes shift, ?uorescence quantum yield, and lifetime are also correlated with the number of carbons in the alkyl chain R for TQPP-[t-Bu]2-[OR]4 and TQPP-[t-Bu]2-[SR] 4. © 2009 American Chemical Society.
dc.format.extent Pages: (1244-1249)
dc.language English
dc.publisher WASHINGTON
dc.relation.ispartof Publication Name: Journal of Physical Chemistry A; Publication Year: 2009; Volume: 113; no. 7; Pages: (1244-1249);
dc.source Scopus
dc.title Effect of chain length on the photophysical properties of pyrene-based molecules substituted with extended chains
dc.type Article
dc.contributor.affiliation Degheili, J.A., Department of Chemistry, American UniVersity of Beirut, Beirut 1107-2020, Lebanon
dc.contributor.affiliation Moustafa, R.M., Department of Chemistry, American UniVersity of Beirut, Beirut 1107-2020, Lebanon
dc.contributor.affiliation Patra, D., Department of Chemistry, American UniVersity of Beirut, Beirut 1107-2020, Lebanon
dc.contributor.affiliation Kaafarani, B.R., Department of Chemistry, American UniVersity of Beirut, Beirut 1107-2020, Lebanon
dc.contributor.authorAddress Patra, D.; Department of Chemistry, American UniVersity of Beirut, Beirut 1107-2020, Lebanon; email:
dc.contributor.authorCorporate University: American University of Beirut; Faculty: Faculty of Arts and Sciences; Department: Chemistry;
dc.contributor.authorDepartment Chemistry
dc.contributor.faculty Faculty of Arts and Sciences
dc.contributor.authorInitials Degheili, JA
dc.contributor.authorInitials Moustafa, RM
dc.contributor.authorInitials Patra, D
dc.contributor.authorInitials Kaafarani, BR
dc.contributor.authorReprintAddress Patra, D (reprint author), Amer Univ Beirut, Dept Chem, Beirut 11072020, Lebanon.
dc.contributor.authorUniversity American University of Beirut
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dc.description.citedCount 13
dc.description.citedTotWOSCount 13
dc.description.citedWOSCount 13
dc.format.extentCount 6
dc.identifier.coden JPCAF
dc.identifier.scopusID 63849343903
dc.publisher.address 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
dc.relation.ispartOfISOAbbr J. Phys. Chem. A
dc.relation.ispartOfIssue 7
dc.relation.ispartofPubTitle Journal of Physical Chemistry A
dc.relation.ispartofPubTitleAbbr J Phys Chem A
dc.relation.ispartOfVolume 113
dc.source.ID WOS:000263268200010
dc.type.publication Journal
dc.subject.otherIndex Alkyl chains
dc.subject.otherIndex Complex structures
dc.subject.otherIndex Long alkyl chains
dc.subject.otherIndex Molecular stacking
dc.subject.otherIndex Non-radiative
dc.subject.otherIndex Photo-physical properties
dc.subject.otherIndex Photophysical
dc.subject.otherIndex Photophysical parameters
dc.subject.otherIndex Photophysical studies
dc.subject.otherIndex Quinoxaline
dc.subject.otherIndex Stokes shifts
dc.subject.otherIndex Tetrahydrofuran
dc.subject.otherIndex Tetrakis
dc.subject.otherIndex Alkylation
dc.subject.otherIndex Charge transfer
dc.subject.otherIndex Ion exchange
dc.subject.otherIndex Molecules
dc.subject.otherIndex Operating rooms
dc.subject.otherIndex Rate constants
dc.subject.otherIndex Organic polymers
dc.subject.otherKeywordPlus FIELD-EFFECT TRANSISTORS
dc.subject.otherKeywordPlus INORGANIC SEMICONDUCTORS
dc.subject.otherKeywordPlus DERIVATIVES
dc.subject.otherWOS Chemistry, Physical
dc.subject.otherWOS Physics, Atomic, Molecular and Chemical

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