The uptake of sodium and the fragmentation before and after “soft” photoionization with ultraviolet light are investigated for small acetic acid clusters. The acetic acid clusters are generated in a supersonic expansion and ionized with ultraviolet light after doping with sodium in a pick-up chamber. The composition of the bare acetic acid clusters in the molecular beam is determined independently from complementary photoionization experiments using extreme ultraviolet light. The experimental results are analyzed with the help of density functional calculations for energetics and statistical adiabatic channel calculations for fragmentation kinetics. The study demonstrates that the detected ions originate from fragmentation in the neutral as well as in the ionic state, and in particular that the fragmentation pathway strongly depends on the cluster size.
REFERENCES
1.
C. P.
Schulz
, R.
Haugstätter
, H. U.
Tittes
, and I. V.
Hertel
, Phys. Rev. Lett.
57
, 1703
(1986
).2.
C. P.
Schulz
, R.
Haugstätter
, H. U.
Tittes
, and I. V.
Hertel
, Z. Phys. D
10
, 279
(1988
).3.
I. V.
Hertel
, C.
Hüglin
, C.
Nitsch
, and C. P.
Schulz
, Phys. Rev. Lett.
67
, 1767
(1991
).4.
C. P.
Schulz
, A.
Gerber
, C.
Nitsch
, and I. V.
Hertel
, Z. Phys. D
20
, 65
(1991
).5.
T. J.
Selegue
and J. M.
Lisy
, J. Phys. Chem.
96
, 4143
(1992
).6.
C.
Nitsch
, C. P.
Schulz
, A.
Gerber
, W.
Zimmermann-Edling
, and I. V.
Hertel
, Z. Phys. D
22
, 651
(1992
).7.
K.
Hashimoto
and K.
Morokuma
, J. Am. Chem. Soc.
117
, 4151
(1995
).8.
R.
Takasu
, F.
Misaizu
, K.
Hashimoto
, and K.
Fuke
, J. Phys. Chem. A
101
, 3078
(1997
).9.
L.
Bewig
, U.
Buck
, S.
Rakowsky
, M.
Reymann
, and C.
Steinbach
, J. Phys. Chem. A
102
, 1124
(1998
).10.
U.
Buck
and C.
Steinbach
, J. Phys. Chem. A
102
, 7333
(1998
).11.
C.
Bobbert
and C. P.
Schulz
, Eur. Phys. J. D
16
, 95
(2001
).12.
X.
Peng
and W.
Kong
, J. Chem. Phys.
117
, 9306
(2002
).13.
C.
Bobbert
, S.
Schütte
, C.
Steinbach
, and U.
Buck
, Eur. Phys. J. D
19
, 183
(2002
).14.
C. P.
Schulz
, C.
Bobbert
, T.
Shimosato
, K.
Daigoku
, N.
Miura
, and K.
Hashimoto
, J. Chem. Phys.
119
, 11620
(2003
).15.
C.
Steinbach
and U.
Buck
, J. Chem. Phys.
122
, 134301
(2005
).16.
T. E.
Salter
, V.
Mikhailov
, and A. M.
Ellis
, J. Phys. Chem. A
111
, 8344
(2007
).17.
B.
Gao
and Z.-F.
Liu
, J. Chem. Phys.
126
, 084501
(2007
).18.
I.
Dauster
, M. A.
Suhm
, U.
Buck
, and T.
Zeuch
, Phys. Chem. Chem. Phys.
10
, 83
(2008
).19.
L.
Cwiklik
, U.
Buck
, W.
Kulig
, P.
Kubisiak
, and P.
Jungwirth
, J. Chem. Phys.
128
, 154306
(2008
).20.
K.
Hashimoto
and K.
Daigoku
, Phys. Chem. Chem. Phys.
11
, 9391
(2009
).21.
H. T.
Liu
, J. P.
Müller
, N.
Zhavoronkov
, C. P.
Schulz
, and I. V.
Hertel
, J. Phys. Chem. A
114
, 1508
(2010
).22.
S.
Schütte
and U.
Buck
, Int. J. Mass Spectrom.
220
, 183
(2002
).23.
J. A.
Draves
, Z.
Luthey-Schulten
, W.-L.
Liu
, and J. M.
Lisy
, J. Chem. Phys.
93
, 4589
(1990
).24.
F.
Stienkemeier
, J.
Higgins
, W. E.
Ernst
, and G.
Scoles
, Phys. Rev. Lett.
74
, 3592
(1995
).25.
P.
Zielke
, P. W.
Forysinski
, D.
Luckhaus
, and R.
Signorell
, J. Chem. Phys.
130
, 211101
(2009
).26.
P. W.
Forysinski
, P.
Zielke
, D.
Luckhaus
, and R.
Signorell
, Phys. Chem. Chem. Phys.
12
, 3121
(2010
).27.
Y.
Mori
and T.
Kitagawa
, Int. J. Mass Spectrom. Ion Process.
84
, 319
(1988
).28.
Y. J.
Hu
, H. B.
Fu
, and E. R.
Bernstein
, J. Chem. Phys.
125
, 184308
(2006
).29.
M. J.
Frisch
, G. W.
Trucks
, H. B.
Schlegel
et al., GAUSSIAN 09, Revision A.02, Gaussian, Inc.
, Wallingford, CT, 2009
.30.
M.
Quack
and J.
Troe
, Ber. Bunsenges. Phys. Chem.
78
, 240
(1974
).31.
M.
Quack
and J.
Troe
, “Statistical adiabatic channel models
”, in Encyclopedia of Computational Chemistry
, edited by P. v. R.
Schleyer
, T.
Clark
, J.
Gasteiger
, P. A.
Kollman
, H. F.
Schaefer
III, and P. R.
Schreiner
(Wiley
, New York
, 1998
), vol. 4
, p. 2708
.32.
S. G.
Lias
, “Ionization energy evaluation
,” in NIST Chemistry WebBook
, NIST Standard Reference Database Number 69
, edited by P. J.
Linstrom
and W. G.
Mallard
(National Institute of Standards and Technology
, Gaithersburg, MD
), 20899
. http://webbook.nist.gov (retrieved December 6, 2010
).33.
M. J.
Pilling
and I. W. M.
Smith
, Modern Gas Kinetics
(Blackwell Scientific
, Oxford
, 1987
).34.
W. F.
Holmgren
, M. C.
Revelle
, V. P. A.
Lonij
, and A. D.
Cronin
, Phys. Rev. A
81
, 053607
(2010
).35.
O.
Dorosh
and Z.
Kisiel
, Acta Phys. Pol. A
112
, S95
(2007
).© 2011 American Institute of Physics.
2011
American Institute of Physics
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