|
|||||
|
|
Gas phase UV and IR absorption spectra of CxF2x+1CHO (x = 1-4) |
|
| Authors: | Y. Hashikawa R.L. Waterland M.D. Hurley T.J. Wallington |
| Affiliation: | a Department of Molecular Engineering and Graduate School of Global Environmental Studies, Kyoto University, Kyoto 615-8510, Japan b DuPont Engineering Research and Technology, E. I. du Pont de Nemours and Co. Inc., P. O. Box 80249, Wilmington, DE 19880-0249, USA c University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark d Ford Motor Company, P.O. Box 2053, Dearborn, MI 48121-2053, USA |
| Abstract: | The UV and IR spectra of CxF2x+1CHO (x = 1-4) were investigated using computational and experimental techniques. CxF2x+1CHO (x = 1-4) have broad UV absorption features centered at 300-310 nm. The maximum absorption cross-section increases significantly and shifts slightly to the red with increased length of the CxF2x+1 group: CF3CHO, 3.10 × 10−20 (300 nm); C2F5CHO, 6.25 × 10−20 (308 nm); C3F7CHO, 8.96 × 10−20 (309 nm); and C4F9CHO, 10.9 × 10−20 (309 nm). IR spectra for CxF2x+1CHO were recorded, calculated, and assigned. Results are discussed with respect to the literature data and to the atmospheric fate of CxF2x+1CHO. |
| Keywords: | Absorption spectra PFOA PFCA |
| 本文献已被 ScienceDirect 等数据库收录！ | |