Competing dissociation channels in the photolysis of S2Cl2 at 235 nm

Autor:	Christof Maul, Alexei Chichinin, Tina S. Einfeld, Karl-Heinz Gericke
Rok vydání:	2002
Předmět:	Resonance-enhanced multiphoton ionization Photodissociation Analytical chemistry General Physics and Astronomy chemistry.chemical_element Dissociation (chemistry) chemistry.chemical_compound Recoil chemistry Disulfur dichloride Excited state Chlorine Physical and Theoretical Chemistry Ground state
Zdroj:	The Journal of Chemical Physics. 117:4214-4219
ISSN:	1089-7690 0021-9606
Popis:	The photodissociation of disulfur dichloride (S2Cl2) at 235 nm has been studied by three-dimensional (3D) imaging of the chlorine product recoil in its ground state 2P3/2[Cl] and excited spin–orbit state 2P1/2[Cl*] employing the resonance enhanced multiphoton ionization and time-of-flight techniques. The photodissociation proceeds mainly along the three channels forming S2+2Cl (1), S2Cl+Cl (2), and 2 SCl (3) photoproducts where slow and fast Cl fragments are released in (1) and (2), respectively. The relative yield of channel (1) with respect to channel (2) was determined to be 1.2:1.0. The yield of Cl*, φ(Cl*)=P(Cl*)/[P(Cl)+P(Cl*)], was found to be 0.35. The obtained state-specific velocity distributions of Cl and Cl* are mainly different in the high energy range: For Cl* the two dissociation channels are almost equally present, whereas in the case of ground state Cl the contribution of dissociation channel (2) is of minor importance. The dependence of the anisotropy parameter β on the fragment recoil ve...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7e0d9ed020349289aa2daf47bb63e511 https://doi.org/10.1063/1.1496465 Zobrazit plný text záznamu