TY - JOUR
T1 - Methane activation by platinum cluster ions in the gas phase
T2 - Effects of cluster charge on the Pt4 tetramer
AU - Achatz, Uwe
AU - Berg, Christian
AU - Joos, Stefan
AU - Fox, Brigitte S.
AU - Beyer, Martin K.
AU - Niedner-Schatteburg, Gereon
AU - Bondybey, Vladimir E.
N1 - Funding Information:
Financial support by the Deutsche Forschungsgemeinschaft and by the Fonds der Chemischen Industrie is gratefully acknowledged.
PY - 2000/3/31
Y1 - 2000/3/31
N2 - The reactions of cationic and anionic platinum clusters Pt±n, n=1-9, with methane CH4 are investigated under single collision conditions in a Fourier-Transform Ion Cyclotron Resonance Mass Spectrometer. The reaction of the platinum clusters proceeds through the activation of C-H bonds of methane and leads to the subsequent elimination of molecular hydrogen H2 to form the final metal-carbene complex Pt±nCH2. The cation cluster reactions proceed in general with collision rate whereas the anion cluster reactions are more than an order of magnitude slower. The platinum tetramer anion is unique among all the clusters studied, reacting more efficiently than the corresponding cation. Tentative interpretation in terms of electronic and geometric effects is performed.
AB - The reactions of cationic and anionic platinum clusters Pt±n, n=1-9, with methane CH4 are investigated under single collision conditions in a Fourier-Transform Ion Cyclotron Resonance Mass Spectrometer. The reaction of the platinum clusters proceeds through the activation of C-H bonds of methane and leads to the subsequent elimination of molecular hydrogen H2 to form the final metal-carbene complex Pt±nCH2. The cation cluster reactions proceed in general with collision rate whereas the anion cluster reactions are more than an order of magnitude slower. The platinum tetramer anion is unique among all the clusters studied, reacting more efficiently than the corresponding cation. Tentative interpretation in terms of electronic and geometric effects is performed.
UR - http://www.scopus.com/inward/record.url?scp=0002585263&partnerID=8YFLogxK
U2 - 10.1016/S0009-2614(00)00179-2
DO - 10.1016/S0009-2614(00)00179-2
M3 - Article
AN - SCOPUS:0002585263
SN - 0009-2614
VL - 320
SP - 53
EP - 58
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 1-2
ER -