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UV and IR absorption cross-sections of HCHO, HCDO, and DCDO.

Authors :
Gratien A
Nilsson E
Doussin JF
Johnson MS
Nielsen CJ
Stenstrøm Y
Picquet-Varrault B
Source :
The journal of physical chemistry. A [J Phys Chem A] 2007 Nov 15; Vol. 111 (45), pp. 11506-13. Date of Electronic Publication: 2007 Oct 24.
Publication Year :
2007

Abstract

UV (240-370 nm) and IR (3200-1500 cm(-1)) absorption cross-sections of HCHO, HCDO, and DCDO in a bath gas of N(2) at atmospheric pressure and 296 K are reported from simultaneous measurements in the two spectral regions. Cross-sections were placed on an absolute scale through quantitative conversion of formaldehyde to CO and HCOOH by titration with Br atoms, also monitored by FTIR. The integrated UV absorption cross-sections of HCHO, HCDO, and DCDO are equal to within the experimental uncertainty.

Details

Language :
English
ISSN :
1089-5639
Volume :
111
Issue :
45
Database :
MEDLINE
Journal :
The journal of physical chemistry. A
Publication Type :
Academic Journal
Accession number :
17958339
Full Text :
https://doi.org/10.1021/jp074288r