FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2023405672> ?p ?o ?g. }

• W2023405672 endingPage "108" @default.
• W2023405672 startingPage "99" @default.
• W2023405672 abstract "The ground and excited states of covalently linked 2-carbazole-based dimers were investigated by theoretical methods and by UV–vis and fluorescence spectroscopies. Geometry optimizations of the ground state of N,N′-diethyl-2,2′-bicarbazole (CC), 2-(N-ethylcarbazol-2-yl)thiophene (CT), and 2-(N-ethylcarbazol-2-yl)-9,9-diethylfluorene (CFl) were carried out at the restricted Hartree–Fock level (RHF/6-31G*). The three derivatives are non-planar in their ground electronic states. The nature and the energy of the first five singlet–singlet electronic transitions have been obtained by ZINDO/S semi-empirical calculations performed on the HF/6-31G* optimized geometries. For all the oligomers, the first electronic transition (S1 ← S0) is weakly allowed and polarized along the y-axis (short axis), whereas the S2 ← S0 electronic transition possesses a much larger oscillator strength and is polarized along the x-axis. The S2 ← S0 electronic transition can be correlated to the first absorption band of each derivative measured in n-hexane. The optimization (relaxation) of S1 and S2 electronic states has been done using the RCIS/6-31G* method. For the three oligomers, S2 is much more stabilized than S1 causing a crossing of the singlet excited states (S2 becomes lower in energy than S1). It is observed that the three dyads reach almost planarity in their first relaxed excited state. Electronic transition energies from the relaxed excited states have been obtained from ZINDO/S calculations performed on the optimized geometries of S1 and S2. It is found that the electronic transition energies from the first relaxed excited state are close to those determined experimentally from the fluorescence spectra recorded in n-hexane. Finally, the fluorescence quantum yield and lifetime have been obtained for the three compounds dissolved in n-hexane. The photophysical properties of these derivatives are discussed in terms of the relative importance of radiative and non-radiative processes." @default.
• W2023405672 created "2016-06-24" @default.
• W2023405672 creator A5019152112 @default.
• W2023405672 creator A5026549572 @default.
• W2023405672 creator A5080643521 @default.
• W2023405672 creator A5087201687 @default.
• W2023405672 date "2004-10-01" @default.
• W2023405672 modified "2023-10-05" @default.
• W2023405672 title "Absorption and emission properties of carbazole-based dyads studied from experimental and theoretical investigations" @default.
• W2023405672 cites W1741884245 @default.
• W2023405672 cites W1968801968 @default.
• W2023405672 cites W1969468634 @default.
• W2023405672 cites W1982082567 @default.
• W2023405672 cites W1984308465 @default.
• W2023405672 cites W1985533040 @default.
• W2023405672 cites W1991845708 @default.
• W2023405672 cites W1993582481 @default.
• W2023405672 cites W1994769347 @default.
• W2023405672 cites W2004696037 @default.
• W2023405672 cites W2005356435 @default.
• W2023405672 cites W2018036622 @default.
• W2023405672 cites W2020878871 @default.
• W2023405672 cites W2030368115 @default.
• W2023405672 cites W2038027365 @default.
• W2023405672 cites W2042917367 @default.
• W2023405672 cites W2059485652 @default.
• W2023405672 cites W2066370544 @default.
• W2023405672 cites W2067864327 @default.
• W2023405672 cites W2082302445 @default.
• W2023405672 cites W2084135044 @default.
• W2023405672 cites W2086649099 @default.
• W2023405672 cites W2090011263 @default.
• W2023405672 cites W2319097249 @default.
• W2023405672 cites W3021515054 @default.
• W2023405672 doi "https://doi.org/10.1016/j.synthmet.2004.06.012" @default.
• W2023405672 hasPublicationYear "2004" @default.
• W2023405672 type Work @default.
• W2023405672 sameAs 2023405672 @default.
• W2023405672 citedByCount "20" @default.
• W2023405672 countsByYear W20234056722012 @default.
• W2023405672 countsByYear W20234056722014 @default.
• W2023405672 countsByYear W20234056722015 @default.
• W2023405672 countsByYear W20234056722016 @default.
• W2023405672 countsByYear W20234056722018 @default.
• W2023405672 countsByYear W20234056722022 @default.
• W2023405672 crossrefType "journal-article" @default.
• W2023405672 hasAuthorship W2023405672A5019152112 @default.
• W2023405672 hasAuthorship W2023405672A5026549572 @default.
• W2023405672 hasAuthorship W2023405672A5080643521 @default.
• W2023405672 hasAuthorship W2023405672A5087201687 @default.
• W2023405672 hasConcept C121332964 @default.
• W2023405672 hasConcept C1276947 @default.
• W2023405672 hasConcept C147597530 @default.
• W2023405672 hasConcept C161522054 @default.
• W2023405672 hasConcept C178790620 @default.
• W2023405672 hasConcept C181500209 @default.
• W2023405672 hasConcept C184779094 @default.
• W2023405672 hasConcept C185592680 @default.
• W2023405672 hasConcept C19329426 @default.
• W2023405672 hasConcept C21074235 @default.
• W2023405672 hasConcept C2776127813 @default.
• W2023405672 hasConcept C2778627677 @default.
• W2023405672 hasConcept C32909587 @default.
• W2023405672 hasConcept C33062035 @default.
• W2023405672 hasConcept C41999313 @default.
• W2023405672 hasConcept C4839761 @default.
• W2023405672 hasConcept C68260962 @default.
• W2023405672 hasConcept C69523127 @default.
• W2023405672 hasConcept C75473681 @default.
• W2023405672 hasConcept C8010536 @default.
• W2023405672 hasConcept C86025842 @default.
• W2023405672 hasConcept C99191460 @default.
• W2023405672 hasConceptScore W2023405672C121332964 @default.
• W2023405672 hasConceptScore W2023405672C1276947 @default.
• W2023405672 hasConceptScore W2023405672C147597530 @default.
• W2023405672 hasConceptScore W2023405672C161522054 @default.
• W2023405672 hasConceptScore W2023405672C178790620 @default.
• W2023405672 hasConceptScore W2023405672C181500209 @default.
• W2023405672 hasConceptScore W2023405672C184779094 @default.
• W2023405672 hasConceptScore W2023405672C185592680 @default.
• W2023405672 hasConceptScore W2023405672C19329426 @default.
• W2023405672 hasConceptScore W2023405672C21074235 @default.
• W2023405672 hasConceptScore W2023405672C2776127813 @default.
• W2023405672 hasConceptScore W2023405672C2778627677 @default.
• W2023405672 hasConceptScore W2023405672C32909587 @default.
• W2023405672 hasConceptScore W2023405672C33062035 @default.
• W2023405672 hasConceptScore W2023405672C41999313 @default.
• W2023405672 hasConceptScore W2023405672C4839761 @default.
• W2023405672 hasConceptScore W2023405672C68260962 @default.
• W2023405672 hasConceptScore W2023405672C69523127 @default.
• W2023405672 hasConceptScore W2023405672C75473681 @default.
• W2023405672 hasConceptScore W2023405672C8010536 @default.
• W2023405672 hasConceptScore W2023405672C86025842 @default.
• W2023405672 hasConceptScore W2023405672C99191460 @default.
• W2023405672 hasIssue "1" @default.
• W2023405672 hasLocation W20234056721 @default.
• W2023405672 hasOpenAccess W2023405672 @default.
• W2023405672 hasPrimaryLocation W20234056721 @default.

• next