| 19044869 |
Hachiya M, Matsuda Y, Suhara K, Mikami N, Fujii A: Infrared predissociation spectroscopy of cluster cations of protic molecules, (NH3) n+, n=2-4 and (CH3OH) n+, n=2,3. J Chem Phys. 2008 Sep 7;129(9):094306.
Infrared predissociation spectroscopy is carried out for the structure investigation of unprotonated cluster cations of protic molecules such as ammonia and methanol, which are generated through vacuum-ultraviolet one-photon ionization of their jet-cooled neutral clusters. The observed spectral features show that the cluster cations have the proton-transferred type structures, where a pair of a protonated cation and a neutral radical, NH (4) (+)...NH (2) or CH (3) OH (2) (+)...OCH (3), is formed. Theoretical calculations at the MP2 and B3LYP levels support the formation of the proton-transferred type structures for the cluster cations, and indicate that they are formed by proton-transfer following the photoionization of the neutral clusters. |
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