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Jarvis MW, Daily JW, Carstensen HH, Dean AM, Sharma S, Dayton DC, Robichaud DJ, Nimlos MR. Direct Detection of Products from the Pyrolysis of 2-Phenethyl Phenyl Ether. J Phys Chem A 2011; 115:428-38. [DOI: 10.1021/jp1076356] [Citation(s) in RCA: 137] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mark W. Jarvis
- National Renewable Energy Laboratory, 1617 Cole Blvd., Golden, Colorado 80401, United States, University of Colorado at Boulder, Department of Mechanical Engineering, Boulder, Colorado 80309, United States, Colorado School of Mines, Department of Chemical Engineering, Golden, Colorado 80401, United States, Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125, United States, and Research Triangle Institute, Research Triangle Park, North Carolina 27709,
| | - John W. Daily
- National Renewable Energy Laboratory, 1617 Cole Blvd., Golden, Colorado 80401, United States, University of Colorado at Boulder, Department of Mechanical Engineering, Boulder, Colorado 80309, United States, Colorado School of Mines, Department of Chemical Engineering, Golden, Colorado 80401, United States, Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125, United States, and Research Triangle Institute, Research Triangle Park, North Carolina 27709,
| | - Hans-Heinrich Carstensen
- National Renewable Energy Laboratory, 1617 Cole Blvd., Golden, Colorado 80401, United States, University of Colorado at Boulder, Department of Mechanical Engineering, Boulder, Colorado 80309, United States, Colorado School of Mines, Department of Chemical Engineering, Golden, Colorado 80401, United States, Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125, United States, and Research Triangle Institute, Research Triangle Park, North Carolina 27709,
| | - Anthony M. Dean
- National Renewable Energy Laboratory, 1617 Cole Blvd., Golden, Colorado 80401, United States, University of Colorado at Boulder, Department of Mechanical Engineering, Boulder, Colorado 80309, United States, Colorado School of Mines, Department of Chemical Engineering, Golden, Colorado 80401, United States, Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125, United States, and Research Triangle Institute, Research Triangle Park, North Carolina 27709,
| | - Shantanu Sharma
- National Renewable Energy Laboratory, 1617 Cole Blvd., Golden, Colorado 80401, United States, University of Colorado at Boulder, Department of Mechanical Engineering, Boulder, Colorado 80309, United States, Colorado School of Mines, Department of Chemical Engineering, Golden, Colorado 80401, United States, Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125, United States, and Research Triangle Institute, Research Triangle Park, North Carolina 27709,
| | - David C. Dayton
- National Renewable Energy Laboratory, 1617 Cole Blvd., Golden, Colorado 80401, United States, University of Colorado at Boulder, Department of Mechanical Engineering, Boulder, Colorado 80309, United States, Colorado School of Mines, Department of Chemical Engineering, Golden, Colorado 80401, United States, Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125, United States, and Research Triangle Institute, Research Triangle Park, North Carolina 27709,
| | - David J. Robichaud
- National Renewable Energy Laboratory, 1617 Cole Blvd., Golden, Colorado 80401, United States, University of Colorado at Boulder, Department of Mechanical Engineering, Boulder, Colorado 80309, United States, Colorado School of Mines, Department of Chemical Engineering, Golden, Colorado 80401, United States, Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125, United States, and Research Triangle Institute, Research Triangle Park, North Carolina 27709,
| | - Mark R. Nimlos
- National Renewable Energy Laboratory, 1617 Cole Blvd., Golden, Colorado 80401, United States, University of Colorado at Boulder, Department of Mechanical Engineering, Boulder, Colorado 80309, United States, Colorado School of Mines, Department of Chemical Engineering, Golden, Colorado 80401, United States, Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125, United States, and Research Triangle Institute, Research Triangle Park, North Carolina 27709,
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Hassouna M, Delbos E, Devolder P, Viskolcz B, Fittschen C. Rate and Equilibrium Constant of the Reaction of 1-Methylvinoxy Radicals with O2: CH3COCH2 + O2 ↔ CH3COCH2O2. J Phys Chem A 2006; 110:6667-72. [PMID: 16722681 DOI: 10.1021/jp0558270] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The reaction of 1-methylvinoxy radicals, CH3COCH2, with molecular oxygen has been investigated by experimental and theoretical methods as a function of temperature (291-520 K) and pressure (0.042-10 bar He). Experiments have been performed by laser photolysis coupled to a detection of 1-methylvinoxy radicals by laser-induced fluorescence LIF. The potential energy surface calculations were performed using ab inito molecular orbital theory at the G3MP2B3 and CBSQB3 level of theory based on the density function theory optimized geometries. Derived molecular properties of the characteristic points of the potential energy surface were used to describe the mechanism and kinetics of the reaction under investigation. At 295 K, no pressure dependence of the rate constant for the association reaction has been observed: k(1,298K) = (1.18 +/- 0.04) x 10(-12) cm3 s(-1). Biexponential decays have been observed in the temperature range 459-520 K and have been interpreted as an equilibrium reaction. The temperature-dependent equilibrium constants have been extracted from these decays and a standard reaction enthalpy of deltaH(r,298K) = -105.0 +/- 2.0 kJ mol(-1) and entropy of deltaS(r,298K) = -143.0 +/- 4.0 J mol(-1) K(-1) were derived, in excellent agreement with the theoretical results. Consistent heats of formation for the vinoxy and the 1-methylvinoxy radical as well as their O2 adducts are recommended based on our complementary experimental and theoretical study deltaH(f,298K) = 13.0 +/- 2.0, -32. 9+/- 2.0, -85.9 +/- 4.0, and -142.1 +/- 4.0 kJ mol(-1) for CH2CHO, CH3COCH2 radicals, and their adducts, respectively.
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Affiliation(s)
- Melynda Hassouna
- Physicochimie des Processus de Combustion et de l'Atmosphère UMR CNRS 8522 and Centré d'Etudes et Recherches Lasers et Applications, Université des Sciences et Technologies de Lille 1, 59655 Villeneuve d'Ascq Cedex, France
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