Vibrational predissociation of Na{sup +} (CH{sub 3}OH){sub m}((CH{sub 3}){sub 2}CO){sub n} (m + n > 1; m, n {ge} 1) from 2.5 to 3.0 microns
- Univ. of Illinois, Urbana, IL (United States)
The vibrational predissociation spectra of Na{sup +}(CH{sub 3}OH){sub m} ((CH{sub 3}){sub 2}CO){sub n} (m + n > 1; m, n {ge} 1), recorded between 3250 - 3800 cm{sup -1}, will be discussed and compared with clusters, Na{sup +}(CH{sup 3}OH){sub m}, that do not contain any acetone molecules (n=0). Acetone is not infrared active in this spectral region, but is capable of participating in strong hydrogen bonds with methanol. Any changes in the spectra between Na{sup +}(CH{sub 3}OH){sub m} and Na{sup +}(CH{sub 3}OH),((CH{sub 3}){sub 2}CO){sub n} can be attributed to the influence of one or more acetone molecules. As in the case 1 of Na{sup +}(CH{sub 3}OH){sub m} clusters, the smaller cluster sizes show an absorption around 3670 cm{sup -1}, which is attributed to methanols with{open_quote}free{close_quote} O-H groups. Methanols acting as proton donors to other acetone or methanol molecules absorb below 3500 cm{sup -1}. The structural impact due to the presence of one or more acetones will be discussed.
- OSTI ID:
- 437283
- Report Number(s):
- CONF-9606118--
- Country of Publication:
- United States
- Language:
- English
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