Matches in SemOpenAlex for { <https://semopenalex.org/work/W1971699499> ?p ?o ?g. }
- W1971699499 endingPage "10918" @default.
- W1971699499 startingPage "10909" @default.
- W1971699499 abstract "The dynamics of photoexcited 2,4-dimethylpyrrole (DMP) were studied using time-resolved velocity map imaging spectroscopy over a range of photoexcitation wavelengths (276–238 nm). Two dominant H atom elimination channels were inferred from the time-resolved total kinetic energy release spectra, one which occurs with a time constant of ∼120 fs producing H atoms with high kinetic energies centered around 5000–7000 cm–1 and a second channel with a time constant of ∼3.5 ps producing H atoms with low kinetic energies centered around 2500–3000 cm–1. The first of these channels is attributed to direct excitation from the ground electronic state (S0) to the dissociative 11πσ* state (S1) and subsequent N–H bond fission, moderated by a reaction barrier in the N–H stretch coordinate. In contrast to analogous measurements in pyrrole (Roberts et al. Faraday Discuss. 2013, 163, 95–116), the N–H dissociation times are invariant with photoexcitation wavelength, implying a relatively flatter potential in the vertical Franck–Condon region of the 11πσ* state of DMP. The origins of the second channel are less clear-cut, but given the picosecond time constant for this process, we posit that this channel is indirect and is likely a consequence of populating higher-lying electronic states [e.g., 21πσ* (S2)] which, following vibronic coupling into lower-lying intermediary states (namely, S1 or S0), leads to prompt N–H bond fission." @default.
- W1971699499 created "2016-06-24" @default.
- W1971699499 creator A5019701734 @default.
- W1971699499 creator A5019743038 @default.
- W1971699499 creator A5040726656 @default.
- W1971699499 creator A5043670906 @default.
- W1971699499 creator A5044652786 @default.
- W1971699499 creator A5047821345 @default.
- W1971699499 date "2014-11-07" @default.
- W1971699499 modified "2023-10-16" @default.
- W1971699499 title "Ultrafast Excited-State Dynamics of 2,4-Dimethylpyrrole" @default.
- W1971699499 cites W1502131880 @default.
- W1971699499 cites W1964416892 @default.
- W1971699499 cites W1971841581 @default.
- W1971699499 cites W1974147495 @default.
- W1971699499 cites W1976101305 @default.
- W1971699499 cites W1981936878 @default.
- W1971699499 cites W1983551502 @default.
- W1971699499 cites W1989807768 @default.
- W1971699499 cites W1991743304 @default.
- W1971699499 cites W1992710850 @default.
- W1971699499 cites W1993340236 @default.
- W1971699499 cites W1995229255 @default.
- W1971699499 cites W1996576033 @default.
- W1971699499 cites W1998916301 @default.
- W1971699499 cites W2005938897 @default.
- W1971699499 cites W2008160899 @default.
- W1971699499 cites W2010296864 @default.
- W1971699499 cites W2011857157 @default.
- W1971699499 cites W2011859576 @default.
- W1971699499 cites W2014805389 @default.
- W1971699499 cites W2032102930 @default.
- W1971699499 cites W2038168603 @default.
- W1971699499 cites W2045610238 @default.
- W1971699499 cites W2050968445 @default.
- W1971699499 cites W2058970956 @default.
- W1971699499 cites W2064696396 @default.
- W1971699499 cites W2067126405 @default.
- W1971699499 cites W2068474360 @default.
- W1971699499 cites W2073158900 @default.
- W1971699499 cites W2081786119 @default.
- W1971699499 cites W2086929653 @default.
- W1971699499 cites W2092990474 @default.
- W1971699499 cites W2098418153 @default.
- W1971699499 cites W2116329212 @default.
- W1971699499 cites W2122439802 @default.
- W1971699499 cites W2123589299 @default.
- W1971699499 cites W2125481329 @default.
- W1971699499 cites W2129882267 @default.
- W1971699499 cites W2136897186 @default.
- W1971699499 cites W2140744656 @default.
- W1971699499 cites W2149601374 @default.
- W1971699499 cites W2152843095 @default.
- W1971699499 cites W2153850780 @default.
- W1971699499 cites W2158265387 @default.
- W1971699499 cites W2166603911 @default.
- W1971699499 cites W2166684115 @default.
- W1971699499 cites W2166886995 @default.
- W1971699499 cites W2170581412 @default.
- W1971699499 cites W2326840591 @default.
- W1971699499 cites W2331519848 @default.
- W1971699499 cites W4244996219 @default.
- W1971699499 doi "https://doi.org/10.1021/jp508919s" @default.
- W1971699499 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/25343507" @default.
- W1971699499 hasPublicationYear "2014" @default.
- W1971699499 type Work @default.
- W1971699499 sameAs 1971699499 @default.
- W1971699499 citedByCount "21" @default.
- W1971699499 countsByYear W19716994992015 @default.
- W1971699499 countsByYear W19716994992016 @default.
- W1971699499 countsByYear W19716994992017 @default.
- W1971699499 countsByYear W19716994992018 @default.
- W1971699499 countsByYear W19716994992019 @default.
- W1971699499 countsByYear W19716994992021 @default.
- W1971699499 countsByYear W19716994992023 @default.
- W1971699499 crossrefType "journal-article" @default.
- W1971699499 hasAuthorship W1971699499A5019701734 @default.
- W1971699499 hasAuthorship W1971699499A5019743038 @default.
- W1971699499 hasAuthorship W1971699499A5040726656 @default.
- W1971699499 hasAuthorship W1971699499A5043670906 @default.
- W1971699499 hasAuthorship W1971699499A5044652786 @default.
- W1971699499 hasAuthorship W1971699499A5047821345 @default.
- W1971699499 hasBestOaLocation W19716994992 @default.
- W1971699499 hasConcept C102931765 @default.
- W1971699499 hasConcept C116039458 @default.
- W1971699499 hasConcept C120665830 @default.
- W1971699499 hasConcept C121332964 @default.
- W1971699499 hasConcept C1276947 @default.
- W1971699499 hasConcept C135889238 @default.
- W1971699499 hasConcept C147789679 @default.
- W1971699499 hasConcept C155220765 @default.
- W1971699499 hasConcept C181500209 @default.
- W1971699499 hasConcept C184779094 @default.
- W1971699499 hasConcept C185592680 @default.
- W1971699499 hasConcept C32891209 @default.
- W1971699499 hasConcept C4839761 @default.
- W1971699499 hasConcept C520434653 @default.
- W1971699499 hasConcept C55005982 @default.