TY - JOUR
T1 - Chemisorption of atomic and molecular oxygen on Au and Ag cluster anions
T2 - Discrimination of different isomers
AU - Kim, Y. D.
AU - Ganteför, G.
AU - Sun, Q.
AU - Jena, P.
PY - 2004/9/21
Y1 - 2004/9/21
N2 - Structures of coinage metal clusters reacted with atomic and molecular oxygen were studied using Ultraviolet Photoelectron Spectroscopy and Density Functional Theory calculations. We show that O 2 partially dissociates on Ag 2 -, and this dissociative chemisorption is a kinetically hindered step. For Au 4O 2 -, in addition to the previously observed molecularly adsorbed oxygen, we are now able to synthesize a second isomer using atomic oxygen reagents, in which oxygen adsorbs dissociatively. We demonstrate that different isomers can be distinguished by comparative studies of chemisorption of atomic and molecular species on metal clusters, which is otherwise difficult.
AB - Structures of coinage metal clusters reacted with atomic and molecular oxygen were studied using Ultraviolet Photoelectron Spectroscopy and Density Functional Theory calculations. We show that O 2 partially dissociates on Ag 2 -, and this dissociative chemisorption is a kinetically hindered step. For Au 4O 2 -, in addition to the previously observed molecularly adsorbed oxygen, we are now able to synthesize a second isomer using atomic oxygen reagents, in which oxygen adsorbs dissociatively. We demonstrate that different isomers can be distinguished by comparative studies of chemisorption of atomic and molecular species on metal clusters, which is otherwise difficult.
UR - https://www.scopus.com/pages/publications/7944238608
U2 - 10.1016/j.cplett.2004.08.030
DO - 10.1016/j.cplett.2004.08.030
M3 - Article
AN - SCOPUS:7944238608
SN - 0009-2614
VL - 396
SP - 69
EP - 74
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 1-3
ER -