Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Kara M. Kapnas"'
Autor:
Kara M, Kapnas, Craig, Murray
Publikováno v:
The Journal of chemical physics. 152(19)
Velocity-map ion imaging has been used to study the vibrational predissociation dynamics of the HCl dimer following infrared (IR) excitation in the HCl stretch overtone region near 1.77 Å. HCl monomer predissociation products were detected state-sel
Autor:
Craig Murray, Elizabeth S. Foreman, J. Grant Hill, Sarah A. Block, Benjamin W. Toulson, Kara M. Kapnas
Publikováno v:
Kapnas, KM; Toulson, BW; Foreman, ES; Block, SA; Hill, JG; & Murray, C. (2017). UV photodissociation dynamics of CHI2Cl and its role as a photolytic precursor for a chlorinated Criegee intermediate. Physical Chemistry Chemical Physics, 19(46), 31039-31053. doi: 10.1039/c7cp06532a. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/0kb507bt
© 2017 the Owner Societies. Photolysis of geminal diiodoalkanes in the presence of molecular oxygen has become an established route to the laboratory production of several Criegee intermediates, and such compounds also have marine sources. Here, we
Publikováno v:
Physical chemistry chemical physics : PCCP, vol 21, iss 26
Kapnas, Kara M; McCaslin, Laura M; & Murray, Craig. (2018). UV photofragmentation dynamics of acetaldehyde cations prepared by single-photon VUV ionization.. Physical chemistry chemical physics : PCCP. doi: 10.1039/c8cp06640j. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/77j5n5x8
Kapnas, Kara M; McCaslin, Laura M; & Murray, Craig. (2018). UV photofragmentation dynamics of acetaldehyde cations prepared by single-photon VUV ionization.. Physical chemistry chemical physics : PCCP. doi: 10.1039/c8cp06640j. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/77j5n5x8
Acetaldehyde cations (CH3CHO+) were prepared using single-photon vacuum ultraviolet ionization of CH3CHO in a molecular beam and the fragmentation dynamics explored over the photolysis wavelength range 390-210 nm using velocity-map ion imaging and ph
Publikováno v:
Angewandte Chemie International Edition. 55:10419-10422
Criegee intermediates (CIs) are a class of reactive radicals that are thought to play a key role in atmospheric chemistry through reactions with trace species that can lead to aerosol particle formation. Recent work has suggested that water vapor is
Autor:
Craig Murray, Markku Räsänen, Elizabeth S. Foreman, Kara M. Kapnas, R. Benny Gerber, Jaroslaw Kalinowski
Publikováno v:
Physical Chemistry Chemical Physics. 18:10941-10946
The excited states of the Criegee intermediate CH2OO are studied in molecular dynamics simulations using directly potentials from multi-reference perturbation theory (MR-PT2). The photoexcitation of the species is simulated, and trajectories are prop
Autor:
Craig Murray, Kara M. Kapnas
Publikováno v:
The Journal of Chemical Physics. 152:194301
Velocity-map ion imaging has been used to study the vibrational predissociation dynamics of the HCl dimer following infrared (IR) excitation in the HCl stretch overtone region near 1.77 A. HCl monomer predissociation products were detected state-sele
Autor:
Kara M, Kapnas, Benjamin W, Toulson, Elizabeth S, Foreman, Sarah A, Block, J Grant, Hill, Craig, Murray
Publikováno v:
Physical chemistry chemical physics : PCCP. 19(46)
Photolysis of geminal diiodoalkanes in the presence of molecular oxygen has become an established route to the laboratory production of several Criegee intermediates, and such compounds also have marine sources. Here, we explore the role that the tri
Publikováno v:
Toulson, BW; Kapnas, KM; Fishman, DA; & Murray, C. (2017). Competing pathways in the near-UV photochemistry of acetaldehyde. Physical Chemistry Chemical Physics, 19(22), 14276-14288. doi: 10.1039/c7cp02573d. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/2727937p
Physical chemistry chemical physics : PCCP, vol 19, iss 22
Physical chemistry chemical physics : PCCP, vol 19, iss 22
© the Owner Societies 2017. Time-resolved ion imaging measurements have been performed to explore the photochemistry of acetaldehyde at photolysis wavelengths spanning the range 265-328 nm. Ion images recorded probing CH3 radicals with single-photon
Autor:
Jaroslaw, Kalinowski, Elizabeth S, Foreman, Kara M, Kapnas, Craig, Murray, Markku, Räsänen, R Benny, Gerber
Publikováno v:
Physical chemistry chemical physics : PCCP. 18(16)
The excited states of the Criegee intermediate CH2OO are studied in molecular dynamics simulations using directly potentials from multi-reference perturbation theory (MR-PT2). The photoexcitation of the species is simulated, and trajectories are prop
Autor:
Craig Murray, Kara M. Kapnas, YiTien Jou, Jaroslaw Kalinowski, R. Benny Gerber, Elizabeth S. Foreman, David Feng
Publikováno v:
Physical chemistry chemical physics : PCCP. 17(48)
Carbonyl oxides, or Criegee intermediates, are formed from the gas phase ozonolysis of alkenes and play a pivotal role in night-time and urban area atmospheric chemistry. Significant discrepancies exist among measurements of the strong B ̃(1)A'-X ̃