Academic literature on the topic 'Carbonyl photochemistry'

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Journal articles on the topic "Carbonyl photochemistry"

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Mataka, Shuntaro, Seung Taeg Lee, and Masashi Tashiro. "Photochemistry of carbonyl-bridged dibenzocyclodecadienes." Journal of the Chemical Society, Perkin Transactions 2, no. 11 (1990): 2017. http://dx.doi.org/10.1039/p29900002017.

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Chen, W. T., M. Shao, S. H. Lu, M. Wang, and L. M. Zeng. "Understanding primary and secondary sources of ambient carbonyl compounds in Beijing using the PMF model." Atmospheric Chemistry and Physics Discussions 13, no. 6 (2013): 15749–81. http://dx.doi.org/10.5194/acpd-13-15749-2013.

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Abstract. Carbonyls are important intermediates in atmospheric photochemistry. To determine the relative contributions of primary and secondary carbonyl sources in Beijing, carbonyls and other trace gases were measured at Peking University in winter and summer. The Positive Matrix Factorization (PMF) model was used for source apportionment. As volatile organic compounds (VOCs) will undergo photochemical processes in the atmosphere, and such processes may interfere with factors identification, the relationships between the contributions of the resolved PMF factors to each non-methane hydrocarbo
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Chen, W. T., M. Shao, S. H. Lu, et al. "Understanding primary and secondary sources of ambient carbonyl compounds in Beijing using the PMF model." Atmospheric Chemistry and Physics 14, no. 6 (2014): 3047–62. http://dx.doi.org/10.5194/acp-14-3047-2014.

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Abstract. Carbonyl compounds are important intermediates in atmospheric photochemistry. To explore the relative contributions of primary and secondary carbonyl sources, carbonyls and other volatile organic compounds (VOCs) were measured at an urban site in both winter and summer in Beijing. The positive matrix factorization (PMF) model was used for source apportionment of VOCs. As VOCs undergo photochemical processes in the atmosphere, and such processes may interfere with factor identification, the relationships between the contributions of the resolved PMF factors to each non-methane hydroca
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Marsili, Emanuele, Antonio Prlj, and Basile F. E. Curchod. "Caveat when using ADC(2) for studying the photochemistry of carbonyl-containing molecules." Physical Chemistry Chemical Physics 23, no. 23 (2021): 12945–49. http://dx.doi.org/10.1039/d1cp02185k.

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Wang, Jinhe, Shan Chen, Xiaoguo Qiu, et al. "Pollution Characteristics of Atmospheric Carbonyl Compounds in a Large City of Northern China." Journal of Chemistry 2022 (January 24, 2022): 1–13. http://dx.doi.org/10.1155/2022/3292598.

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To better understand the pollution characteristics and formation mechanisms of atmospheric carbonyl compounds, continuous measurements of carbonyl compounds in Jinan were taken for one month at a sampling frequency of 2 h. The sources, pollution characteristics, and concentration changes of carbonyl compounds during the summers of 2018 and 2020 were compared. The total concentrations of carbonyl compounds were 10.51 ± 0.13 ppbV and 6.30 ± 1.08 ppbV in 2018 and 2020, respectively. In both years, formaldehyde, acetone, and acetaldehyde were the major carbonyls. Diurnal variations and correlation
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Liu, Wenbo, and Chao-Jun Li. "Recent Synthetic Applications of Catalyst-Free Photochemistry." Synlett 28, no. 20 (2017): 2714–54. http://dx.doi.org/10.1055/s-0036-1590900.

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Catalyst-free photochemistry provides numerous opportunities toward sustainable synthesis because catalyst separation can usually be avoided, which is consistent with green chemistry principles. Complementary to the well-reviewed photoredox chemistry, this review specifically summarizes the synthetic applications of photochemistry without external catalysts reported since 2000. The selected examples include both natural product synthesis and new methodology development. This review is arranged based on the type of chromophore. It is our hope that this review will inspire more synthetic chemist
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MATAKA, S., S. T. LEE, and M. TASHIRO. "ChemInform Abstract: Photochemistry of Carbonyl-Bridged Dibenzocyclodecadienes." ChemInform 22, no. 8 (2010): no. http://dx.doi.org/10.1002/chin.199108106.

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Stegbauer, Simone, Noah Jeremias, Christian Jandl, and Thorsten Bach. "Reversal of reaction type selectivity by Lewis acid coordination: the ortho photocycloaddition of 1- and 2-naphthaldehyde." Chemical Science 10, no. 37 (2019): 8566–70. http://dx.doi.org/10.1039/c9sc03315g.

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Lewis acids, such as AlBr<sub>3</sub>, completely alter the photochemical behaviour of naphthaldehydes. Instead of typical carbonyl photochemistry, the aldehydes undergo cycloaddition reactions at the arene core upon visible-light irradiation.
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Wagner, Peter J., and Harlan W. Frerking Jr. "Photochemistry of nonconjugated diketones: internal self-quenching and energy transfer." Canadian Journal of Chemistry 73, no. 11 (1995): 2047–61. http://dx.doi.org/10.1139/v95-253.

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The triplet state behavior of nine α,ω-dibenzoylalkanes indicates the occurrence of a rapid quenching interaction between the two carbonyl groups. This quenching is fastest (k = 3 × 107 s−1) in dibenzoylbutane, is slightly slower (~107 s−1) in dibenzoylethane, dibenzoylpentane, and 2,2-dibenzoylpropane, but is absent in 1,3-dibenzoylpropane. It also occurs in several "mixed" 1,4-diaroylbutanes incorporating p-ethylbenzoyl or p-methoxybenzoyl chromophores This internal self-quenching is interpreted as the intramolecular counterpart of the well-known bimolecular self-quenching of aryl ketones, a
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Ringsdorf, Akima, Achim Edtbauer, Bruna Holanda, et al. "Investigating carbonyl compounds above the Amazon rainforest using a proton-transfer-reaction time-of-flight mass spectrometer (PTR-ToF-MS) with NO+ chemical ionization." Atmospheric Chemistry and Physics 24, no. 20 (2024): 11883–910. http://dx.doi.org/10.5194/acp-24-11883-2024.

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Abstract. The photochemistry of carbonyl compounds significantly influences tropospheric chemical composition by altering the local oxidative capacity; free radical abundance in the upper troposphere; and formation of ozone, peroxycarboxylic nitric anhydride (PAN), and secondary organic aerosol particles. Carbonyl compounds can be emitted directly from the biosphere into the atmosphere and are formed through photochemical degradation of various precursor compounds. Aldehydes have atmospheric lifetimes of hours to days, whereas ketones persist for up to several weeks. While standard operating c
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Dissertations / Theses on the topic "Carbonyl photochemistry"

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Willasey-Wilsey, Sarah Louise. "The photochemistry of unsaturated carbonyl compounds." Thesis, King's College London (University of London), 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.309739.

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Firth, S. "Low temperature photochemistry." Thesis, University of Nottingham, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378979.

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M'Hamedi, Ahmed. "Synthesis and photochemistry of #alpha#-substituted carbonyl compounds." Thesis, University of Salford, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305900.

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Hardy, Stella Jane. "Photochemistry and photopolymerisation activity of novel aromatic carbonyl photoinitiators." Thesis, Manchester Metropolitan University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359296.

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The photochemistry and photopolymerisation activity of eight novel aromatic carbonyl photoinitiators have been examined. Five of these were t-butyl perester derivatives, three of 9-fluorenone and these were compared with fluorenone itself and the other two of benzophenone and this was used for comparison also. The remaining three compounds incorporated acetophenone type chromophores bound onto a polysiloxane backbone and these were compared to diethoxyacetophenone. The photochemistry was examined using UV/Vis absorption spectroscopy, luminescence, and flash photolysis, both conventional micros
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Lam, Edward. "Synthesis and photochemistry of novel aromatic carbonyl photopolymerization initiators." Thesis, Manchester Metropolitan University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.254487.

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Belt, S. T. "Intermediates and mechanisms in organo-rhodium photochemistry." Thesis, University of York, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234935.

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Cheung, Eugene. "Solid state photochemistry and x-ray crystallography of carbonyl-containing compounds." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0017/NQ56659.pdf.

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Hooker, R. H. "Photochemistry of some transition metal carbonyl complexes in polymer film media at 12-298K." Thesis, University of Southampton, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.377799.

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Corrigan, Maggie Elaine. "The Importance of the Electronic Ground State in the Atmospheric Chemistry of Small Carbonyls." Thesis, The University of Sydney, 2021. https://hdl.handle.net/2123/25109.

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Carbonyls are important in the troposphere: they have high abundance and are photochemically active. Their ground state photochemistry is not well understood. In this thesis, we investigate the non-radiative decay mechanism in carbonyls from S1  S0, and the bimolecular reactivity of vibrationally hot S0 carbonyls. Firstly, intersystem crossing is investigated as a possible mechanism returning S1 H2CO, CH3CHO and (CH3)2CO to S0 via S1T1S0. We perform multireference calculations to determine spin-orbit coupling in these species. Multi-Configuration Time-Dependent Hartree calculations are u
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Pos, Willer H. "On the processes and mechanisms affecting carbonyl sulfide and carbon monoxide photoproduction in natural waters." Diss., Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/25815.

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Books on the topic "Carbonyl photochemistry"

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Jeffries, H. E. Technical discussion related to the choice of photolytic rates for carbon bond mechanisms in OZIPM4/EKMA. U.S. Environmental Protection Agency, Office of Air and Radiation, Office of Air Quality Planning and Standards, 1987.

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Manuta, David Mark. Photochemistry and photophysics of group VIB metal tetracarbonyl complexes. 1985.

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Jordan, Robert B. Reaction Mechanisms of Inorganic and Organometallic Systems. Oxford University Press, 2007. http://dx.doi.org/10.1093/oso/9780195301007.001.0001.

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This third edition retains the general level and scope of earlier editions, but has been substantially updated with over 900 new references covering the literature through 2005, and 140 more pages of text than the previous edition. In addition to the general updating of materials, there is new or greatly expanded coverage of topics such as Curtin-Hammett conditions, pressure effects, metal hydrides and asymmetric hydrogenation catalysts, the inverted electron-transfer region, intervalence electron transfer, photochemistry of metal carbonyls, methyl transferase and nitric oxide synthase. The ne
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Book chapters on the topic "Carbonyl photochemistry"

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Dinda, Biswanath. "Photochemistry of Carbonyl Compounds." In Lecture Notes in Chemistry. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-45934-9_8.

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D'Auria, M., L. Emanuele, and R. Racioppi. "1, 2-Cycloaddition Reaction of Carbonyl Compounds and Pentaatomic Heterocyclic Compounds." In Advances in Photochemistry. John Wiley & Sons, Inc., 2005. http://dx.doi.org/10.1002/0471714127.ch3.

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Arnold, Donald R. "The Photocycloaddition of Carbonyl Compounds to Unsaturated Systems: The Syntheses of Oxetanes." In Advances in Photochemistry. John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470133361.ch4.

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Roundhill, D. M. "Photochemistry of Transition Metal Carbonyl and Isocyanide Complexes." In Photochemistry and Photophysics of Metal Complexes. Springer US, 1994. http://dx.doi.org/10.1007/978-1-4899-1495-8_6.

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Belluš, Daniel. "Photo-Fries Rearrangement and Related Photochemical [1,j] -Shifts (j = 3, 5, 7) of Carbonyl and Sulfonyl Groups." In Advances in Photochemistry. John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470133385.ch3.

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Yasufuku, K., N. Hiraga, K. Ichimura, and T. Kobayashi. "Laser Flash Photolysis of Phosphine-Substituted Dimanganese Carbonyl Compounds." In Photochemistry and Photophysics of Coordination Compounds. Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-72666-8_50.

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Dougherty, T. P., and E. J. Heilweil. "Broad-Band Transient-IR Spectroscopy of Metal-Carbonyl Photochemistry." In Springer Series in Chemical Physics. Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-85176-6_21.

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Dougherty, T. P., and E. J. Heilweil. "Dual-Track Picosecond Infrared Spectroscopy of Metal-Carbonyl Photochemistry." In Springer Proceedings in Physics. Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-85060-8_33.

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Lian, T., B. Locke, M. Iannone, and R. M. Hochstrasser. "Femtosecond Infrared Spectroscopy: The Condensed Phase Photochemistry of Metal Carbonyl Dimers." In Springer Proceedings in Physics. Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-642-84771-4_27.

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Vlček, Antonín. "Ultrafast Excited-State Processes in Re(I) Carbonyl-Diimine Complexes: From Excitation to Photochemistry." In Photophysics of Organometallics. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/3418_2009_4.

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Conference papers on the topic "Carbonyl photochemistry"

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Dougherty, Thomas P., and Edwin J. Heilweil. "Broadband transient IR spectroscopy of metal carbonyl photochemistry." In International Conference on Ultrafast Phenomena. Optica Publishing Group, 1994. http://dx.doi.org/10.1364/up.1994.fa.2.

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A novel method for obtaining transient infrared molecular spectra with femtosecond time and high spectral resolution is described. New studies of metal-carbonyl photodissociation and solvation dynamics using this technique are described.
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Heilweil, Edwin J., and Thomas P. Dougherty. "Femtosecond broadband infrared dual-beam spectroscopy of metal-carbonyl photochemistry." In OE/LASE '94, edited by Gabor Patonay. SPIE, 1994. http://dx.doi.org/10.1117/12.181342.

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Anfinrud, Philip A., Chui-Hee Han, Tianquan Lian, and Robin M. Hochstrasser. "Subpicosecond Infrared Spectroscopy: the Condensed Phase Photochemistry of Iron Carbonyls." In International Conference on Ultrafast Phenomena. Optica Publishing Group, 1990. http://dx.doi.org/10.1364/up.1990.mc17.

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The condensed phase photochemistry of transition metal carbonyls has been investigated by various techniques in recent years. It is anticipated that such studies will contribute to our understanding of coordinatively unsaturated organometallic complexes and their role in homogeneous catalysis. IR characterization of photogenerated intermediates in isolated matrices has helped to identify photochemical reaction pathways, however, the frozen matrix imposes steric restrictions on pathways which may be important in the liquid phase at room or elevated temperatures. Transient IR methods offering mi
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Preses, J. M., G. E. Hall, J. T. Muckerman, and R. E. Weston. "Time-resolved Fourier-transform Infrared Emission Study of the 193-nm Photolysis of 3-Pentanone." In Fourier Transform Spectroscopy. Optica Publishing Group, 1995. http://dx.doi.org/10.1364/fts.1995.ffd11.

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Small and medium-sized ketones are of interest due to their rich chemistry and involvement in practical combustion mechanisms. Further, the primary products of their dissociation, such as ethyl radicals and carbon monoxide in the present case, are themselves important combustion species. The photochemistry of ketones has been extensively investigated both by classical photochemical techniques, and more recently by methods that provide detailed information about the dissociation process and the disposition of energy in the fragments.1 Acetone is the simplest ketone and serves as an excellent mo
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Rothberg, Lewis. "Picosecond infrared measurements in condensed matter." In OSA Annual Meeting. Optica Publishing Group, 1992. http://dx.doi.org/10.1364/oam.1992.fm2.

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Difference frequency mixing of amplified femtosecond visible pulses with white light continuum radiation produces relatively broadband infrared pulses (~10 meV), whose bandwidth is determined by the phase matching bandwidth of the difference frequency crystal. This radiation is easily tuned over a broad range (hundreds of meV) by angle tuning of the crystal. One application is the study of photogenerated charge carriers in the quasi-one-dimensional organic semiconductor trans-polyacetylene. Beause of the strong electron-phonon coupling, electrons and holes are dressed by the lattice leading su
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Reports on the topic "Carbonyl photochemistry"

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Bromberg, S. E. Ultrafast studies of organometallic photochemistry: The mechanism of carbon-hydrogen bond activation in solution. Office of Scientific and Technical Information (OSTI), 1998. http://dx.doi.org/10.2172/290873.

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Shahak, Yosepha, and Donald R. Ort. Physiological Bases for Impaired Photosynthetic Performance of Chilling-Sensitive Fruit Trees. United States Department of Agriculture, 2001. http://dx.doi.org/10.32747/2001.7575278.bard.

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Chilling-sensitivity is an important agricultural problem in both the U.S. and Israel. Most research attention has focused so far on herbaceous crop plants, even though the problem is also acute in the fruit tree industry. Under BARD funding we made substantial progress in identifying the mechanisms involved in the disruption of photosynthesis following a chill in mango. Our investigation with fruit trees has been substantially accelerated by drawing on our knowledge and experience with herbaceous crops. The four original research objectives, focused or discovering the underlying mechanisms of
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