Zobrazeno 1 - 10
of 46
pro vyhledávání: '"J. B. Paul"'
Autor:
J. P. DiGangi, E. S. Boyle, T. Karl, P. Harley, A. Turnipseed, S. Kim, C. Cantrell, R. L. Maudlin III, W. Zheng, F. Flocke, S. R. Hall, K. Ullmann, Y. Nakashima, J. B. Paul, G. M. Wolfe, A. R. Desai, Y. Kajii, A. Guenther, F. N. Keutsch
Publikováno v:
Atmospheric Chemistry and Physics, Vol 11, Iss 20, Pp 10565-10578 (2011)
We report the first observations of formaldehyde (HCHO) flux measured via eddy covariance, as well as HCHO concentrations and gradients, as observed by the Madison Fiber Laser-Induced Fluorescence Instrument during the BEACHON-ROCS 2010 campaign in a
Externí odkaz:
https://doaj.org/article/3811be7806af475c982fadb140800326
Publikováno v:
The Journal of Physical Chemistry A. 108:10989-10996
We present the first direct infrared absorption measurements of gas phase nucleotide base clusters and complexes with water. Spectra in the NH stretching region indicate the presence of several doubly H-bonded isomers of both thymine and uracil dimer
Publikováno v:
The Journal of Chemical Physics. 116:6640-6647
We report the design and performance of a tunable, pulsed high resolution mid infrared cavity ringdown spectrometer. Stimulated Raman scattering in H2/D2 is used to downconvert the output of a SLM Alexandrite ring laser (720–800 nm) to the mid infr
Autor:
Henry F. Schaefer, Richard J. Saykally, J. B. Paul, R. A. Provencal, Gregory S. Tschumper, R. Casaes, Katja Roth, Chris N. Chapo
Publikováno v:
The Journal of Physical Chemistry A. 104:1423-1429
Infrared cavity ringdown laser absorption spectroscopy has been used to study the O−H stretching vibrations of jet-cooled ethanol and butanol clusters. Three bonded O−H stretches were attributed to the ethanol dimer, indicating the presence of mo
Autor:
Henry F. Schaefer, R. A. Provencal, J. B. Paul, Gregory S. Tschumper, C. Chapo, K. Roth, R. Casaes, Richard J. Saykally
Publikováno v:
Scopus-Elsevier
Infrared cavity ringdown laser absorption spectroscopy has been used to study the O–H stretching vibrations of jet-cooled methanol clusters in direct absorption. Rovibrational bands for (CH3OH)2, (CH3OH)3, and (CH3OH)4 have been measured. Both bond
Publikováno v:
The Journal of Chemical Physics. 109:10201-10206
The infrared O–D stretching spectrum of fully deuterated jet-cooled water clusters is reported. Sequential red-shifts in the single donor O–D stretches, which characterize the cooperative effects in the hydrogen bond network, were accurately meas
Publikováno v:
The Journal of Physical Chemistry A. 102:3279-3283
The IR-CRLAS technique has been used to measure the mid-infrared O−D stretching spectrum of the fully deuterated gas-phase water dimer for the first time. The instrumentally limited resolution of 1...
Publikováno v:
The Journal of Physical Chemistry A. 101:5211-5214
The recently developed technique of infrared cavity ringdown laser absorption spectroscopy (IR-CRLAS) has been employed in the 3.0 μm region to determine the absolute concentrations of water dimers, trimers, tetramers, and pentamers in a pulsed supe
Autor:
R. J. Saykally, J. B. Paul
Publikováno v:
Analytical Chemistry. 69:287A-292A
Cavity ringdown laser absorption spectroscopy with simple commercial pulsed lasers and standard electronics can be used to obtain ultrasensitive direct absorption measurements
Publikováno v:
Chemical Reviews. 97:25-52
The measurement of electronic spectra of supersonically cooled molecules and clusters is a widely used approach for addressing many problems in chemistry. The most established techniques for making such measurements are laser-induced fluorescence (LI