Author: Scott Johnathan GoncherPublisher:
ISBN:
Category :
Languages : en
Pages : 280
Book Description
Studies of Photofragment Translational Spectroscopy
Author: Scott Johnathan GoncherPublisher:
ISBN:
Category :
Languages : en
Pages : 280
Book Description
Photodissociation Dynamics Studies Via Photofragment Translational Spectroscopy
Author: Niels E. SveumPhotofragment Translational Spectroscopy Studies of Unsaturated Hydrocarbons
Author: Jason Charles RobinsonPublisher:
ISBN:
Category :
Languages : en
Pages : 428
Book Description
Reaction Mechanism Studies of Unsaturated Molecules Using Photofragment Translational Spectroscopy
Author: Cheryl Ann LongfellowPublisher:
ISBN:
Category :
Languages : en
Pages : 302
Book Description
Photofragment Translational Spectroscopy Studies of Small Organic Hydrides
Author: Photofragment Translational Spectroscopy of Three Body Dissociations and Free Radicals
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 235
Book Description
This dissertation describes several three-body dissociations and the photodissociation of methyl radicals studied using photofragment translational spectroscopy. The first chapter provides an introduction to three body dissociation, examines current experimental methodology, and includes a discussion on the treatment of photofragment translational spectroscopy data arising from three-body fragmentation. The ultraviolet photodissociation of azomethane into two methyl radicals and nitrogen is discussed in chapter 2. Chapter 3 describes the photodissociation of acetone at 248 nm and 193 nm. At 248 nm the translational energy release from the initial C-C bond cleavage matches the exit barrier height and a comparison with results at 266 nm suggests that E{sub T} is invariant to the available energy. A fraction of the nascent CH3CO radicals spontaneously dissociate following rotational averaging. The E{sub T} for the second C-C bond cleavage also matches the exit barrier height. At 193 nm the experimental data can be successfully fit assuming that the dynamics are analogous to those at 248 nm. A simplified model of energy partitioning which adequately describes the experimental results is discussed. Experiments on acetyl halides provide additional evidence to support the proposed acetone dissociation mechanism. A value of 17.0"1.0 kcal/mole for the barrier height, CH3CO decomposition has been determined. The photodissociation of methyl radical at 193 nm and 212.8 nm is discussed in the chapter 5. The formation of CH2 (1A{sub l}) and H (2S) was the only single photon dissociation pathway observed at both wavelengths.
Reaction Mechanism Studies of Unsaturated Molecules Using Photofragment Translational Spectroscopy
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 146
Book Description
A number of molecules have been studied using the technique of photofragment translational spectroscopy. In Chapter One a brief introduction to the experimental technique is given. In Chapter Two the infrared multiphoton dissociation (IRMPD) of acetic acid is discussed. Carbon dioxide and methane were observed for the first time as products from dissociation under collisionless conditions. Chapter Three relates an IRMPD experiment of hexafluoropropene. The predominant channel produces CFCF3 or C2F4 and CF2, with the heavier species undergoing further dissociation to two CF2 fragments. In Chapter Four the ultraviolet (UV) dissociation of hexafluoropropene is investigated. Chapter Five explores the IRMPD of octafluoro-1-butene and octafluoro-2-butene.
Author: Simon William North
Author: Alec Michael Wodtke
Author: