Infrared spectra of the cluster ions H/sub 7/O/sup +//sub 3/xH/sub 2/ and H/sub 9/O/sup +//sub 4/xH/sub 2/

Journal Article · Fri Aug 15 00:00:00 EDT 1986 · J. Chem. Phys.; (United States)

OSTI ID:5453401

Okumura, M; Yeh, L I; Myers, J D; Lee, Y T

Infrared spectra of hydrated hydronium ions weakly bound to an H/sub 2/ molecule, specifically H/sub 7/O/sup +//sub 3/xH/sub 2/ and H/sub 9/O/sup +//sub 4/xH/sub 2/, have been observed. Mass-selected parent ions, trapped in a radio frequency ion trap, are excited by a tunable infrared laser; following absorption, the complex predissociates with loss of the H/sub 2/, and the resulting fragment ions are detected. Spectra have been taken from 3000 to 4000 cm/sup -1/, with a resolution of 1.2 cm/sup -1/. They are compared to recent theoretical and experimental spectra of the hydronium ion hydrates alone. Binding an H/sub 2/ molecule to these clusters should only weakly perturb their vibrations; if so, our spectra should be similar to spectra of the hydrated hydronium ions H/sub 7/O/sup +//sub 3/ and H/sub 9/O/sup +//sub 4/.

• Research Organization: Materials and Molecular Research Division, Lawrence Berkeley Laboratory; Department of Chemistry, University of California, Berkeley California 94720
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5453401
• Journal Information: J. Chem. Phys.; (United States), Vol. 85:4
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
OXONIUM IONS
INFRARED SPECTRA
ION PAIRS
ADDUCTS
BINDING ENERGY
HYDROGEN
PREDISSOCIATION
CHARGED PARTICLES
DISSOCIATION
ELEMENTS
ENERGY
IONS
MOLECULAR IONS
NONMETALS
SPECTRA
640302* - Atomic
Molecular & Chemical Physics- Atomic & Molecular Properties & Theory