TY - JOUR
T1 - Collision-induced dissociation of hydrated adenosine monophosphate nucleotide ions
T2 - Protection of the ion in water nanoclusters
AU - Liu, B.
AU - Nielsen, S. Brøndsted
AU - Hvelplund, P.
AU - Zettergren, H.
AU - Cederquist, H.
AU - Manil, B.
AU - Huber, B. A.
PY - 2006
Y1 - 2006
N2 - Fragmentation of singly charged anions of adenosine 5'-monophosphate (AMP-) induced by collisions with neutral atoms (Ne, Na) has been studied at a collision energy of 50 keV. The experiments were performed with isolated AMP- as well as with AMP- anions nanosolvated in a cluster with a given number m of water molecules. In the first case, the dominant fragmentation channels concern the loss of adenine, PO3- and H2PO4-. In the latter, loss of water molecules becomes the dominating process, and the AMP- ion is fully protected when m is larger than ∼13. The observed fragment distributions are well described with the model of an evaporative ensemble.
AB - Fragmentation of singly charged anions of adenosine 5'-monophosphate (AMP-) induced by collisions with neutral atoms (Ne, Na) has been studied at a collision energy of 50 keV. The experiments were performed with isolated AMP- as well as with AMP- anions nanosolvated in a cluster with a given number m of water molecules. In the first case, the dominant fragmentation channels concern the loss of adenine, PO3- and H2PO4-. In the latter, loss of water molecules becomes the dominating process, and the AMP- ion is fully protected when m is larger than ∼13. The observed fragment distributions are well described with the model of an evaporative ensemble.
UR - http://www.scopus.com/inward/record.url?scp=33748990929&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.97.133401
DO - 10.1103/PhysRevLett.97.133401
M3 - Article
AN - SCOPUS:33748990929
SN - 0031-9007
VL - 97
JO - Physical Review Letters
JF - Physical Review Letters
IS - 13
M1 - 133401
ER -