FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2024582594> ?p ?o ?g. }

• W2024582594 endingPage "1302" @default.
• W2024582594 startingPage "1294" @default.
• W2024582594 abstract "The absorption, phosphorescence and phosphorescence excitation spectra, phosphorescence quantum yields, and T(1) excited state lifetimes of four 4-thiouracil derivatives were measured for the first time in chemically inert and very weakly interacting perfluoro-1,3-dimethylcyclohexane at room temperature. The set of the 4-thiouracil derivatives comprises 1-propyl-4-thiouracil (PTU) and the related compounds having a methyl substituent at the position α to the thiocarbonyl group, namely 1-propyl-4-thiothymine (PTT), 1,3-dimethyl-4-thiouracil (DMTU), and 1-methyl-3-trideuteriomethyl-4-thiouracil ([D(3)]DMTU). Quantitative information on the intramolecular decay of the T(1) excited state of the four 4-thiouracil derivatives is presented, and the mechanism and dynamics of this process are discussed. In the absence of self quenching and solvent induced deactivation, the T(1) decay of the four 4-thiouracil derivatives was dominated by intramolecular nonradiative processes (NR). The values of the rate constant k(NR) in DMTU and [D(3)]DMTU are about 4 times larger than that in PTT and about 3 times larger than that in PTU. The reasons for the enhanced nonradiative rate constant in DMTU are discussed. It is concluded that the faster rate of the nonradiative processes in DMTU is related to a larger contribution from mixing of the T(2) (nπ*) state into the lowest energy T(1) (ππ*) state, as compared to the analogous coupling in PTU and PTT. This conclusion is supported by ab initio calculations performed at the EOM-CC2/aug-cc-pVDZ level of theory. The energy spacing between the T(2) (nπ*) and T(1) (ππ*) states is estimated to be about 500, 1100, and 2000 cm(-1) for DMTU, PTU, and PTT, respectively. Among the three compounds in question, the predicted energy spacing is thus the smallest for DMTU." @default.
• W2024582594 created "2016-06-24" @default.
• W2024582594 creator A5033050462 @default.
• W2024582594 creator A5034396456 @default.
• W2024582594 creator A5042679024 @default.
• W2024582594 creator A5043529450 @default.
• W2024582594 creator A5043865680 @default.
• W2024582594 creator A5079880258 @default.
• W2024582594 date "2011-08-01" @default.
• W2024582594 modified "2023-10-14" @default.
• W2024582594 title "Mechanism and dynamics of intramolecular triplet state decay of 1-propyl-4-thiouracil and its α-methyl-substituted derivatives studied in perfluoro-1,3-dimethylcyclohexane" @default.
• W2024582594 cites W1534689561 @default.
• W2024582594 cites W1967293333 @default.
• W2024582594 cites W1971312291 @default.
• W2024582594 cites W1976740294 @default.
• W2024582594 cites W1977212873 @default.
• W2024582594 cites W1978346212 @default.
• W2024582594 cites W1979118506 @default.
• W2024582594 cites W1980206640 @default.
• W2024582594 cites W1981549632 @default.
• W2024582594 cites W1983067344 @default.
• W2024582594 cites W1987197853 @default.
• W2024582594 cites W1992609903 @default.
• W2024582594 cites W1992846668 @default.
• W2024582594 cites W1993077801 @default.
• W2024582594 cites W1994632672 @default.
• W2024582594 cites W1997270474 @default.
• W2024582594 cites W2000812308 @default.
• W2024582594 cites W2000864902 @default.
• W2024582594 cites W2003040014 @default.
• W2024582594 cites W2004048410 @default.
• W2024582594 cites W2005493715 @default.
• W2024582594 cites W2005667945 @default.
• W2024582594 cites W2008495834 @default.
• W2024582594 cites W2015501698 @default.
• W2024582594 cites W2021605481 @default.
• W2024582594 cites W2024850885 @default.
• W2024582594 cites W2035942888 @default.
• W2024582594 cites W2038016537 @default.
• W2024582594 cites W2040465232 @default.
• W2024582594 cites W2041293640 @default.
• W2024582594 cites W2042889262 @default.
• W2024582594 cites W2042931953 @default.
• W2024582594 cites W2044940178 @default.
• W2024582594 cites W2053945482 @default.
• W2024582594 cites W2056029515 @default.
• W2024582594 cites W2057386193 @default.
• W2024582594 cites W2057389341 @default.
• W2024582594 cites W2060858284 @default.
• W2024582594 cites W2062734867 @default.
• W2024582594 cites W2066481445 @default.
• W2024582594 cites W2069006374 @default.
• W2024582594 cites W2072173165 @default.
• W2024582594 cites W2072509880 @default.
• W2024582594 cites W2077538161 @default.
• W2024582594 cites W2079201008 @default.
• W2024582594 cites W2079986366 @default.
• W2024582594 cites W2083544305 @default.
• W2024582594 cites W2088986859 @default.
• W2024582594 cites W2092475137 @default.
• W2024582594 cites W2124955918 @default.
• W2024582594 cites W2128603248 @default.
• W2024582594 cites W2142833427 @default.
• W2024582594 cites W2143607780 @default.
• W2024582594 cites W2148701592 @default.
• W2024582594 cites W2172246196 @default.
• W2024582594 cites W2173930229 @default.
• W2024582594 cites W267441655 @default.
• W2024582594 cites W4327849159 @default.
• W2024582594 doi "https://doi.org/10.1039/c1pp05034f" @default.
• W2024582594 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/21594285" @default.
• W2024582594 hasPublicationYear "2011" @default.
• W2024582594 type Work @default.
• W2024582594 sameAs 2024582594 @default.
• W2024582594 citedByCount "9" @default.
• W2024582594 countsByYear W20245825942014 @default.
• W2024582594 countsByYear W20245825942016 @default.
• W2024582594 countsByYear W20245825942017 @default.
• W2024582594 countsByYear W20245825942018 @default.
• W2024582594 countsByYear W20245825942019 @default.
• W2024582594 crossrefType "journal-article" @default.
• W2024582594 hasAuthorship W2024582594A5033050462 @default.
• W2024582594 hasAuthorship W2024582594A5034396456 @default.
• W2024582594 hasAuthorship W2024582594A5042679024 @default.
• W2024582594 hasAuthorship W2024582594A5043529450 @default.
• W2024582594 hasAuthorship W2024582594A5043865680 @default.
• W2024582594 hasAuthorship W2024582594A5079880258 @default.
• W2024582594 hasBestOaLocation W20245825941 @default.
• W2024582594 hasConcept C121332964 @default.
• W2024582594 hasConcept C121745418 @default.
• W2024582594 hasConcept C126322002 @default.
• W2024582594 hasConcept C147597530 @default.
• W2024582594 hasConcept C148898269 @default.
• W2024582594 hasConcept C155647269 @default.
• W2024582594 hasConcept C181500209 @default.
• W2024582594 hasConcept C181817918 @default.
• W2024582594 hasConcept C184779094 @default.
• W2024582594 hasConcept C185592680 @default.

• next