TY - JOUR
T1 - Photoemission from adenine crystal
T2 - Solvation of a pre-ionizing state
AU - Zielinski, Marek
AU - Pope, Martin
AU - Wang, Ning
AU - Horvath, Csaba
AU - Geacintov, Nicholas E.
N1 - Funding Information:
This work was supported by the National Foundation for Cancer Research and by the US Department of Energy Grant DEFG0286-ER60405. Acknowledgement is made of useful conversations with C.B. Duke, S. Lipsky, C.E. Swenberg and L. Christophorou.
PY - 1990/1/19
Y1 - 1990/1/19
N2 - Photoemission studies of adenine microcrystals in the presence of traces of water yield two distinct values of the ionization energy, Ic=6.2 and 7.1 eV, each of which has been observed separately in different laboratories. We ascribe these results respectively to photoemission from "wet" and "dry" sites on the crystal surface. The 0.9 eV lowering of Ic is attributed to the solvation of the pre-ionizing state. The solvation energy must be in place before the electron leaves and it is argued that the photoemission event takes about 5×10-13 s.
AB - Photoemission studies of adenine microcrystals in the presence of traces of water yield two distinct values of the ionization energy, Ic=6.2 and 7.1 eV, each of which has been observed separately in different laboratories. We ascribe these results respectively to photoemission from "wet" and "dry" sites on the crystal surface. The 0.9 eV lowering of Ic is attributed to the solvation of the pre-ionizing state. The solvation energy must be in place before the electron leaves and it is argued that the photoemission event takes about 5×10-13 s.
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U2 - 10.1016/0009-2614(90)87192-T
DO - 10.1016/0009-2614(90)87192-T
M3 - Article
AN - SCOPUS:0008713097
SN - 0009-2614
VL - 165
SP - 297
EP - 301
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 4
ER -