FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1994589149> ?p ?o ?g. }

• W1994589149 endingPage "15007" @default.
• W1994589149 startingPage "15007" @default.
• W1994589149 abstract "Femtosecond polarization resolved UV/Vis and mid-infrared spectroscopy was used to thoroughly identify and characterize the relevant elementary chemical and physical processes in the photocycle of 3-hydroxyflavone (3-HF) in solution. In one set of experiments with the polar aprotic solvent acetonitrile-d(3), for the first time excited state intramolecular proton transfer (ESIPT), vibrational cooling/relaxation and rotational diffusion could be separated, and furthermore mid IR vibrational spectra of 3-HF excited states in solution phase were obtained. UV/Vis transient absorption data yield the time constant τ(Rot) = 22 ps for rotational diffusion and the time constant τ(VR) = 8.5 ps for vibrational cooling/relaxation in the tautomer excited state (S(1)'). Biphasic ESIPT with τ < 120 fs and τ = 2.4 ps as well as slow ground state recovery with τ > 500 ps was found. The time resolved mid IR data yield a time constant of ≈3.4 ps for the slow ESIPT step as well as the vibrational frequencies of S(0,) S(1)' and, in particular those of the short lived excited state S(1). Via quantum chemical calculations, structural parameters of these states are obtained. Various models were used, namely for the isolated molecule, aggregates with solvent as well as a polarizable continuum, that allow us to correlate the two ESIPT components with two mechanisms. Results are compared to those from previously published gas-phase experiments and indicate that the observed slow ESIPT is mediated by solute-solvent interaction via a hydrogen bond with the hydroxyl group of 3-HF." @default.
• W1994589149 created "2016-06-24" @default.
• W1994589149 creator A5028050168 @default.
• W1994589149 creator A5043073913 @default.
• W1994589149 creator A5057941848 @default.
• W1994589149 creator A5059561750 @default.
• W1994589149 creator A5072905509 @default.
• W1994589149 creator A5086471538 @default.
• W1994589149 date "2012-01-01" @default.
• W1994589149 modified "2023-09-25" @default.
• W1994589149 title "Transient IR spectroscopy and ab initio calculations on ESIPT in 3-hydroxyflavone solvated in acetonitrile" @default.
• W1994589149 cites W1963683620 @default.
• W1994589149 cites W1967124503 @default.
• W1994589149 cites W1968681990 @default.
• W1994589149 cites W1969249329 @default.
• W1994589149 cites W1970769861 @default.
• W1994589149 cites W1981609789 @default.
• W1994589149 cites W1981914421 @default.
• W1994589149 cites W1982090724 @default.
• W1994589149 cites W1984236233 @default.
• W1994589149 cites W1984241748 @default.
• W1994589149 cites W1985609598 @default.
• W1994589149 cites W1991597601 @default.
• W1994589149 cites W1996106683 @default.
• W1994589149 cites W1997151511 @default.
• W1994589149 cites W1997842740 @default.
• W1994589149 cites W1999857770 @default.
• W1994589149 cites W2001326574 @default.
• W1994589149 cites W2002273737 @default.
• W1994589149 cites W2008468445 @default.
• W1994589149 cites W2008777881 @default.
• W1994589149 cites W2009300834 @default.
• W1994589149 cites W2015229726 @default.
• W1994589149 cites W2024514401 @default.
• W1994589149 cites W2024624698 @default.
• W1994589149 cites W2024902047 @default.
• W1994589149 cites W2026339426 @default.
• W1994589149 cites W2028022118 @default.
• W1994589149 cites W2032006513 @default.
• W1994589149 cites W2036283699 @default.
• W1994589149 cites W2040362515 @default.
• W1994589149 cites W2042519897 @default.
• W1994589149 cites W2046008467 @default.
• W1994589149 cites W2046175617 @default.
• W1994589149 cites W2046645139 @default.
• W1994589149 cites W2051129733 @default.
• W1994589149 cites W2051361815 @default.
• W1994589149 cites W2054036754 @default.
• W1994589149 cites W2056967289 @default.
• W1994589149 cites W2058574018 @default.
• W1994589149 cites W2059330056 @default.
• W1994589149 cites W2062529579 @default.
• W1994589149 cites W2066333719 @default.
• W1994589149 cites W2067090231 @default.
• W1994589149 cites W2068865427 @default.
• W1994589149 cites W2069791205 @default.
• W1994589149 cites W2077729746 @default.
• W1994589149 cites W2080821278 @default.
• W1994589149 cites W2082455318 @default.
• W1994589149 cites W2086966815 @default.
• W1994589149 cites W2088036600 @default.
• W1994589149 cites W2092870192 @default.
• W1994589149 cites W2096990984 @default.
• W1994589149 cites W2102207364 @default.
• W1994589149 cites W2127666463 @default.
• W1994589149 cites W2135074873 @default.
• W1994589149 cites W2145064200 @default.
• W1994589149 cites W2157067796 @default.
• W1994589149 cites W2161273674 @default.
• W1994589149 cites W2176191107 @default.
• W1994589149 cites W2324416518 @default.
• W1994589149 cites W2949345406 @default.
• W1994589149 cites W2949897419 @default.
• W1994589149 cites W2951123545 @default.
• W1994589149 cites W4243146380 @default.
• W1994589149 cites W4376848495 @default.
• W1994589149 doi "https://doi.org/10.1039/c2cp41077j" @default.
• W1994589149 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/23034719" @default.
• W1994589149 hasPublicationYear "2012" @default.
• W1994589149 type Work @default.
• W1994589149 sameAs 1994589149 @default.
• W1994589149 citedByCount "43" @default.
• W1994589149 countsByYear W19945891492013 @default.
• W1994589149 countsByYear W19945891492014 @default.
• W1994589149 countsByYear W19945891492015 @default.
• W1994589149 countsByYear W19945891492016 @default.
• W1994589149 countsByYear W19945891492017 @default.
• W1994589149 countsByYear W19945891492018 @default.
• W1994589149 countsByYear W19945891492019 @default.
• W1994589149 countsByYear W19945891492021 @default.
• W1994589149 countsByYear W19945891492022 @default.
• W1994589149 countsByYear W19945891492023 @default.
• W1994589149 crossrefType "journal-article" @default.
• W1994589149 hasAuthorship W1994589149A5028050168 @default.
• W1994589149 hasAuthorship W1994589149A5043073913 @default.
• W1994589149 hasAuthorship W1994589149A5057941848 @default.
• W1994589149 hasAuthorship W1994589149A5059561750 @default.
• W1994589149 hasAuthorship W1994589149A5072905509 @default.

• next