TY - JOUR
T1 - Infrared spectroscopic study of the acidic CH bonds in hydrated clusters of cationic pentane
AU - Endo, Tomoya
AU - Matsuda, Yoshiyuki
AU - Fujii, Asuka
N1 - Funding Information:
We thank Prof. T. Maeyama and Dr. Min Xie for their helpful discussions. T.E. appreciates DIARE in Tohoku University for the fellowship. Y.M. acknowledges support from the Grant-in-Aid for Scientific Research on Innovative Area [2507] (Project No. 16H00930) from MEXT Japan and the Grand-in-Aid for Scientific Research (Project No. 16K05640) from JSPS.
Publisher Copyright:
© 2017 American Chemical Society.
PY - 2017/10/5
Y1 - 2017/10/5
N2 - Infrared spectroscopy of the hydrated clusters of cationic pentane, which are generated through the vacuum ultraviolet photoionization in the gas phase, is carried out to probe the acidic properties of their CH bonds. The monohydrated pentane cation forms the proton-shared structure, in which the proton of CH in cationic pentane is shared between the pentyl radical and water molecule. In the di- and trihydrated clusters, the proton of CH is completely transferred to the water moiety so that the clusters are composed of the pentyl radical and protonated water cluster. These results indicate that two water molecules are enough to cause the proton transfer from CH of cationic pentane, and thus its acidity is highly enhanced with the ionization.
AB - Infrared spectroscopy of the hydrated clusters of cationic pentane, which are generated through the vacuum ultraviolet photoionization in the gas phase, is carried out to probe the acidic properties of their CH bonds. The monohydrated pentane cation forms the proton-shared structure, in which the proton of CH in cationic pentane is shared between the pentyl radical and water molecule. In the di- and trihydrated clusters, the proton of CH is completely transferred to the water moiety so that the clusters are composed of the pentyl radical and protonated water cluster. These results indicate that two water molecules are enough to cause the proton transfer from CH of cationic pentane, and thus its acidity is highly enhanced with the ionization.
UR - http://www.scopus.com/inward/record.url?scp=85032629088&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85032629088&partnerID=8YFLogxK
U2 - 10.1021/acs.jpclett.7b02282
DO - 10.1021/acs.jpclett.7b02282
M3 - Article
C2 - 28903004
AN - SCOPUS:85032629088
SN - 1948-7185
VL - 8
SP - 4716
EP - 4719
JO - Journal of Physical Chemistry Letters
JF - Journal of Physical Chemistry Letters
IS - 19
ER -