Thermal Decomposition Mechanism for Ethanethiol.
J Phys Chem A
; 121(26): 4953-4960, 2017 Jul 06.
Article
en En
| MEDLINE
| ID: mdl-28558212
ABSTRACT
The thermal decomposition of ethanethiol was studied using a 1 mm × 2 cm pulsed silicon carbide microtubular reactor, CH3CH2SH + Δ â Products. Unlike previous studies these experiments were able to identify the initial ethanethiol decomposition products. Ethanethiol was entrained in either an Ar or a He carrier gas, passed through a heated (300-1700 K) SiC microtubular reactor (roughly ≤100 µs residence time) and exited into a vacuum chamber. Within one reactor diameter the gas cools to less than 50 K rotationally, and all reactions cease. The resultant molecular beam was probed by photoionization mass spectroscopy and IR spectroscopy. Ethanethiol was found to undergo unimolecular decomposition by three pathways CH3CH2SH â (1) CH3CH2 + SH, (2) CH3 + H2CâS, and (3) H2CâCH2 + H2S. The experimental findings are in good agreement with electronic structure calculations.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Tipo de estudio:
Prognostic_studies
Idioma:
En
Revista:
J Phys Chem A
Asunto de la revista:
QUIMICA
Año:
2017
Tipo del documento:
Article
País de afiliación:
Estados Unidos