Zobrazeno 1 - 10
of 67
pro vyhledávání: '"John F. Hershberger"'
Autor:
John F. Hershberger, Wenhui Feng
Publikováno v:
Chemical Physics. 472:18-23
IR diode laser spectroscopy was used to detect the products of HCNO (fulminic acid) photolysis at 193 nm. Six product channels are energetically possible at this photolysis wavelength: O + HCN, H + NCO/CNO, CN + OH, CO + NH, NO + CH and HNCO. In some
Publikováno v:
The Journal of Physical Chemistry A. 120:1145-1152
The products of the reaction of CH2OH with NO were studied by infrared diode laser spectroscopy. Products were detected to determine the branching ratios of the CH2OH + NO reaction. HNCO was detected in 10.3 ± 2% yields. No other products were detec
Autor:
John F. Hershberger, Michael Hodny
Publikováno v:
Chemical Physics Letters. 645:88-91
The kinetics of the CN + CH 3 Br reaction were studied using transient infrared laser absorption spectroscopy to detect CN reactants and HCN products. This reaction has a rate constant of k = (2.20 ± 0.6) × 10 −12 exp (453 ± 98/ T ) cm 3 molecul
Autor:
John F. Hershberger, Erik Janssen
Publikováno v:
Chemical Physics Letters. 625:26-29
The kinetics of the reactions of CN radicals with several small primary alcohol molecules were studied by transient infrared laser absorption spectroscopy. Direct time-resolved detection of CN was used to determine total rate constants. In addition,
Autor:
John F. Hershberger, Wenhui Feng
Publikováno v:
The Journal of Physical Chemistry A. 118:829-837
IR diode laser spectroscopy was used to detect the products of HCNO (fulminic acid) photolysis at 248 nm. Five product channels are energetically possible at this photolysis wavelength: O + HCN, H + (NCO), CN + OH, CO + NH, and HNCO. In some experime
Autor:
Wenhui Feng, John F. Hershberger
Publikováno v:
The Journal of Physical Chemistry A. 115:286-290
Diode infrared laser absorption spectroscopy was used to measure the rate constant (k(1)) of the CN + CS(2) reaction for the first time. k(1) was determined to be substantially pressure dependent with a value k(1) = (7.1 ± 0.2 to 41.9 ± 2.9) × 10(
Autor:
John F. Hershberger, Wenhui Feng
Publikováno v:
Chemical Physics Letters. 488:140-144
Infrared diode laser spectroscopy was used to probe the kinetics of the NCCO + O 2 reaction. Several NCCO transitions were detected at 1887–1890 cm −1 , in good agreement with a recent high-level calculation for the ν 2 fundamental vibrational f
Autor:
Vaishali Samant, John F. Hershberger
Publikováno v:
Chemical Physics Letters. 460:64-67
The kinetics of reactions of CN with the chlorinated methanes CH 3 Cl, CH 2 Cl 2 , CHCl 3 and CCl 4 were investigated over the temperature range 298–573 K, using laser induced fluorescence (LIF) spectroscopy. At 298 K, rate constants of 9.0 ± 0.3
Autor:
Wenhui Feng, John F. Hershberger
Publikováno v:
Chemical Physics Letters. 457:307-311
The potential energy surface for the reaction of O(3P) with HCNO (fulminic acid) has been studied using ab initio methods. Critical points were optimized at the DFT-B3LYP/6-311++G(d,p) level of theory, combined with single point energy calculations a