Bibliographic Citation
| Document | For copies of Journal Articles, please contact the Publisher or your local public or university library and refer to the information in the Resource Relation field. For copies of other documents, please see the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or Document Availability. |
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| Title | Infrared multiphoton dissociation of ethyl and methyl acetate |
| Creator/Author | Hintsa, E.J. ; Wodtke, A.M. ; Lee, Y.T. |
| Publication Date | 1988 Sep 22 |
| OSTI Identifier | OSTI ID: 6254098 |
| Other Number(s) | CODEN: JPCHA |
| Resource Type | Journal Article |
| Resource Relation | J. Phys. Chem. ; Vol/Issue: 92:19 |
| Research Org | Lawrence Berkeley Lab., CA (USA) |
| Subject | 400500 -- Photochemistry; ACETATES-- DISSOCIATION; BINDING ENERGY;CHEMICAL REACTION YIELD;EXPERIMENTAL DATA;INFRARED RADIATION;LASERS;MASS SPECTROSCOPY;MULTI-PHOTON PROCESSES;PHOTOLYSIS;TIME-OF-FLIGHT SPECTROMETERS |
| Related Subject | CARBOXYLIC ACID SALTS;CHEMICAL REACTIONS;DATA;DECOMPOSITION;ELECTROMAGNETIC RADIATION;ENERGY;INFORMATION;MEASURING INSTRUMENTS;NUMERICAL DATA;PHOTOCHEMICAL REACTIONS;RADIATIONS;SPECTROMETERS;SPECTROSCOPY;YIELDS |
| Description/Abstract | The collisionless decompositions of ethyl and methyl acetate was investigated with IR multiphoton dissociation.^With a fluence of 40 J/cm/sup 2/, ethyl acetate gave 97% concerted decomposition producing ethylene and acetic acid, the latter of which underwent significant secondary decomposition to ketene and water.^Simple bond rupture producing ethyl radical and CH/sub 3/CO/sub 2/, which completely decomposed to CH/sub 3/ and CO/sub 2/, accounted for the remaining reaction produce.^Methyl acetate underwent concerted reaction to produce methanol and ketene and simple bond rupture to form CH/sub 3/ and CH/sub 3/CO/sub 2/, in near equal amounts.^All of the concerted reactions released more than half (approx.20 kcal/mol) of the exit channel barrier into translational energy.^From the branching ratio between the two channels and the translational energy distribution of the simple bond rupture channel, the barrier for concerted reaction in methyl acetate was determined to be 69 /plus minus/ kcal/mol. |
| Country of Publication | United States |
| Language | English |
| Format | Pages: 5379-5387 |
| System Entry Date | 2001 May 13 |
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