Published March 1978 | Version v1
Journal article Metadata-only

ICR study of the negative ions of sulfuryl fluoride

Creators

  • 1. Sao Paulo Univ. (Brazil). Instituto de Quimica

Description

An ion cyclotron resonance study of the negative ions obtained from low energy (4 eV) electron impact on SO2F2 reveal that F2-. reacts with SO2F2 to yield So2F3- and F. A new method devised to measure ion residence times in an ICR drift cell is used to determine the rate constant for the formation of SO2F3- as (4,0 +- 0,9( x 10-10 cm3 molecule -1s-1 at 296 K. The fluoride affinity of sulfuryl fluoride has been bracketed between 36 and 46 kcal mole-1

Abstract (Portuguese)

Observa-se num estudo por ressonancia ciclotronica de ions negativos de SO2F2, que F2-. reage em fase gasosa atraves de uma reacao ion-molecula com SO2F2 para produzir SO2F3- e F. Apresenta-se uma nova metodologia para medir tempos de residencia de ions numa cela convencional de ressonancia ciclotronica. Este metodo e usado para determinar a constante de velocidade de formacao de SO2F3- a 296K. (4,9+- 0,9) x 10-10 cm3 molecule -1s-1. A afinidade por fluoreto de SO2F2 e estimada como estando entre 36 a 46 kcal mol-1

Additional details

Publishing Information

Journal Title
An. Acad. Bras. Cienc.
Journal Volume
50
Journal Issue
1
Series
An. Acad. Bras. Cienc.
Journal Page Range
67-69
ISSN
0001-3765

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
9415284
Subject category
S74: ATOMIC AND MOLECULAR PHYSICS; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ANIONS; CHEMICAL REACTION KINETICS; CYCLOTRON RESONANCE; ELECTRON CAPTURE; EV RANGE 01-10; MASS SPECTROSCOPY; SULFUR FLUORIDES
Descriptors DEC
CAPTURE; CHARGED PARTICLES; ENERGY RANGE; EV RANGE; FLUORIDES; FLUORINE COMPOUNDS; HALIDES; HALOGEN COMPOUNDS; IONS; KINETICS; REACTION KINETICS; RESONANCE; SPECTROSCOPY; SULFUR COMPOUNDS