MALDI-Fourier transform mass spectrometric and theoretical studies of donor-acceptor and donor-bridge-acceptor fullerenes.
Fourier-transform ion cyclotron resonance (FTICR) mass spectrometric studies have been performed on donor-acceptor and donor-bridge acceptor fullerene-based systems. Matrix-assisted laser desorption/ionization (MALDI) was used for ion production; both the positive and negative ion modes were utilized. In addition, collision-induced dissociation (CID) experiments were carried out to study the movement of the charge (electron or hole) upon fragmentation. The experiments are complemented by ab initio theoretical calculations yielding both molecular orbital energies and electron density distributions. It was found that the theoretical electron density map predicted the experimentally observed fragmentation correctly in every case. Both the calculations and the MS experiments may be useful in studying these and related donor-acceptor systems in view of their use for charge separation and eventually, solar energy production.
Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology (ETH), Zürich, ETH-Hönggerberg, CH-8093 Zürich, Switzerland.
Vladimir E
VE
Frankevich
Maxim
M
Dashtiev
Renato
R
Zenobi
Toshikazu
T
Kitagawa
Yangsoo
Y
Lee
Yasujiro
Y
Murata
Tetsuya
T
Yamazaki
Yunyan
Y
Gao
Koichi
K
Komatsu
Josep M
JM
Oliva
D003198:Computer Simulation; D037741:Fullerenes / Q000737:chemistry*; D008956:Models, Chemical; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization / Q000379:methods
D037741:Fullerenes