Download or read book Molecular Beam Studies of Photodissociation Reactions written by Douglas John Krajnovich and published by . This book was released on 1983 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Molecular Beam Studies on O 1D Reaction with Cyclopropane and Photodissociation of Cyclopropane written by 王家蓁 and published by . This book was released on 2001 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Molecular Beam Studies of Reaction Dynamics written by and published by . This book was released on 1993 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thrust was to elucidate simple elementary reactions and to unravel mechanism of complex/photochemical reactions. Molecular beams are used to study reactions between molecules or to monitor photodissociation events in a collision-free environment. Recent activities centered on reactions involving oxygen atoms with unsaturated hydrocarbons, endothermic substitution reactions, dependence of reactivity of excited atoms on alignment of excited orbitals, photochemical reactions of polyatomic, energy transfer, free radicals in combustion processes, infrared absorption spectra of carbonium ions and hydrated hydronium ions, and bond-selective photodissociation.

Download or read book Molecular Beam Photodissociation Studies of Polyatomic Molecules and Radicals written by Eric J. Hintsa and published by . This book was released on 1989 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proposed Molecular Beam Determination of Energy Partition in the Photodissociation of Polyatomic Molecules written by Richard N. Zare and published by . This book was released on 1964 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Molecular Beam Studies of Unimolecular and Bimolecular Chemical Reaction Dynamics Using VUV Synchrotron Radiation as a Product Probe written by and published by . This book was released on 1997 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation describes the use of a new molecular beam apparatus designed to use tunable VUV synchrotron radiation for photoionization of the products from scattering experiments. The apparatus was built at the recently constructed Advanced Light Source at Lawrence Berkeley National Laboratory, a third generation 1-2 GeV synchrotron radiation source. The new apparatus is applied to investigations of the dynamics of unimolecular reactions, photodissociation experiments, and bimolecular reactions, crossed molecular beam experiments. The first chapter describes the new apparatus and the VUV radiation used for photoionization. This is followed by a number of examples of the many advantages provided by using VUV photoionization in comparison with the traditional technique of electron bombardment ionization. At the end of the chapter there is a discussion of the data analysis employed in these scattering experiments. The remaining four chapters are complete investigations of the dynamics of four chemical systems using the new apparatus and provide numerous additional examples of the advantages provided by VUV photoionizaiton of the products. Chapters 2-4 are photofragment translational spectroscopy studies of the photodissociation dynamics of dimethyl sulfoxide, acrylonitrile, and vinyl chloride following absorption at 193 mn. All of these systems have multiple dissociation channels and provide good examples of the ability of the new apparatus to unravel the complex UV photodissociation dynamics that can arise in small polyatomic molecules.

Download or read book Photodissociation of Cyclic Compounds in a Molecular Beam written by Xinsheng Zhao and published by . This book was released on 1989 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Molecular Beam Studies of the Photodissociation Dynamics of Organometallic Compounds written by Urmi Ray and published by . This book was released on 1988 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Crossed Molecular Beam Studies of the Reactions of Oxygen and Fluorine Atoms written by Y. T. Lee and published by . This book was released on 1985 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: This annual report describes the primary photodissociation of acetylene (C2H2) and bromoiodomethane (CH2BrI) using a new molecular beam photofragmentation translational spectrometer. The new third generation molecular beam photofragmentation translational spectrometer constructed during the past year is described in detail. This apparatus incorporates many new ideas and allows us to study some of the primary dissociation processes of polyatomic molecules which were not possible in the past. The dissociation of Ch2BrI at 248 and 193 nm is extremely interesting. The competition between C-I and CC-Br bond rupture is the key question, but dissociations at 193 nm also produces IBr products. Secondary photodissociations of primary products were also found to be important. These two systems are carried out partly for the purpose of evaluating the performance of the new molecular beam photofragmentation apparatus. The results clearly show that the performance of the apparatus is as good as our original expectation and that it should be capable of handling molecules with very low vapor pressures; studies of these molecules, such as the nitroamines, are planned. Additional keywords: Unimolecular decay photochemistry; rocket fuels; energetic materials; polyatomic molecules; Naval Research. (Author).

Download or read book State selected Study of Ion molecule Reaction Dynamics Photodissociation Dynamics and Free Radical Studies Using Synchrotron Radiation written by Tao Zhang and published by . This book was released on 2003 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Studies of Unimolecular and Bimolecular Reaction Dynamics Via the Molecular Beam Technique written by Michael Harvey Covinsky and published by . This book was released on 1990 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Molecular Beam Studies of Unimolecular and Bimolecular Chemical Reaction Dynamics Using VUV Synchrotron Radiation as a Product Probe written by David Andrew Blank and published by . This book was released on 1997 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dimethyl Sulfoxide Photodissociation Studies in a Molecular Beam written by Gail M. Thorson and published by . This book was released on 1997 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Molecular Beam Studies of Infrared Multiphoton Dissociation and Inelastic Gas surface Scattering written by Cindy Linea Berrie and published by . This book was released on 1997 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Molecular Beam Experiments and Theoretical Studies on the Dynamics and Photochemistry of Several Small Molecules written by Preston Garrieth Scrape and published by . This book was released on 2017 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: These experimental and computational studies characterize the dynamics and thermochemistry of several species that are important in atmospheric, combustion, and interstellar chemistry. The species are selected both as interesting problems in their own right, and as proxies that give insight into even more complex problems. In crossed laser-molecular beam experiments, the uv photochemistry of BrCH2CH2ONO and CH2Cl2 are probed, revealing rich excited-state dynamics including the unexpected photoelimination of HNO from BrCH2CH2ONO and an unusual trimodal kinetic energy release in HCl photoelimination from CH2Cl2. In the case of CH2Cl2, C-Cl photofission produces the CH2Cl radical, allowing a first characterization of its photoionization cross section. BrCH2CH2ONO also generates the openshell nitrite CH2CH2ONO, which is found to dissociate predominately via its lowest-barrier pathway to NO2 + ethene; however, this radical evinces significant dissociation to HNO + vinoxy, even though the barrier to this process (calculated at the G4/B3LYP/6-311++G(3df,2p) level of theory) is prohibitively high. This result implies a non-intrinsic reaction coordinate pathway to HNO that circumvents the classical transition state; thus, HNO production from nitrite radicals is likely a more important channel than was previously believed. In a theoretical study, a new model of energy partitioning in dissociation reactions is developed that estimates the distribution of vibrational energy based solely on the intrinsic reaction coordinate surface; the predictions of this model are found to agree quite well with experimental measurements in the case of HCl photoelimination from acryloyl chloride. Finally, in support of future dynamics studies, a novel composite thermochemical protocol is assessed by calculating the singlet-triplet gap of CH2 and the dissociation threshold of (H2O)2. The protocol agrees exceptionally well with experimental values, giving confidence that it may be applied to other systems.

Download or read book Molecular Beam Studies of Reactive Scattering Surface Scattering and Photodissociation Processes written by Pedro Recio Ibáñez and published by . This book was released on 2020 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Molecular Beam Studies of Oxygen Atom Reactions with Unsaturated Hydrocarbons written by Annemarie Schmoltner and published by . This book was released on 1989 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: