Photoelectron and photoionization spectroscopy of weakly bound aluminum–methylamine complexes

Aluminum–methylamine complexes are produced in pulsed molecular beams. Their electronic spectra are obtained using threshold photoionization and zero-electron-kinetic-energy photoelectron spectroscopies and interpreted using density functional and ab initio calculations. The photoelectron spectra re...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:The Journal of chemical physics 2003-05, Vol.118 (19), p.8636-8644
Hauptverfasser: Li, Shenggang, Rothschopf, Gretchen K., Fuller, Jason F., Yang, Dong-Sheng
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Aluminum–methylamine complexes are produced in pulsed molecular beams. Their electronic spectra are obtained using threshold photoionization and zero-electron-kinetic-energy photoelectron spectroscopies and interpreted using density functional and ab initio calculations. The photoelectron spectra reveal ground electronic states and intermolecular and ligand-based vibrations of Al–NHn(CH3)3−n and Al+–NHn(CH3)3−n (n=0–2), adiabatic ionization energies of Al–NHn(CH3)3−n, and a low-lying excited electronic state of Al–NH2CH3. In addition, the spectroscopic measurements and theoretical calculations show strong methyl substitution effects on the ionization energies and metal–ligand binding. Striking spectral differences are discovered between these aluminum complexes and previously studied gallium and indium analogues.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.1566947