Ion dip spectroscopy of van der Waals clusters
- Department of Chemistry, Pennsylvania State University, University Park, Pennsylvania 16802 (USA)
We report the implementation of ion dip spectroscopy in a supersonic molecular beam time-of-flight mass spectrometer as a powerful mass-selective method for observing ground-state vibrational levels in van der Waals clusters. Ion dip spectra of phenylacetylene and phenylacetylene-NH{sub 3} are demonstrated in the range of 900--1100 cm{sup {minus}1}, showing prominent dips at 978.0, 1002.8, and 1028.0 cm{sup {minus}1}. These dips have been tentatively assigned as 13{sup 0}{sub 1} 35{sup 1}{sub 1}, 11{sup 0}{sub 1} 35{sup 1}{sub 0}, and 35{sup 1}{sub 2}, respectively, in phenylacetylene. Shifts in the 35{sup 1}{sub 2} and 11{sup 0}{sub 1}35{sup 1}{sub 0} vibrational bands of the complex are observed while the 13{sup 0}{sub 1}35{sup 1}{sub 1} band of the complex is either shifted or attenuated.
- DOE Contract Number:
- FG02-88ER60648
- OSTI ID:
- 6971996
- Journal Information:
- Journal of Chemical Physics; (USA), Journal Name: Journal of Chemical Physics; (USA) Vol. 92:10; ISSN JCPSA; ISSN 0021-9606
- Country of Publication:
- United States
- Language:
- English
Similar Records
Spectroscopic mapping of the OH-Ar van der Waals potential
Tunable far infrared laser spectroscopy of van der Waals bonds: Ar-NH sub 3
Related Subjects
400102* -- Chemical & Spectral Procedures
AMMONIA
AROMATICS
BEAMS
COMPLEXES
ENERGY LEVELS
EXCITED STATES
FLUID FLOW
HYDRIDES
HYDROGEN COMPOUNDS
MASS SPECTROSCOPY
MOLECULAR BEAMS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
ORGANIC COMPOUNDS
SPECTRAL SHIFT
SPECTROSCOPY
STRUCTURAL CHEMICAL ANALYSIS
SUPERSONIC FLOW
TIME-OF-FLIGHT METHOD
VIBRATIONAL STATES