Observation and Analysis of N[subscript 2]O Rotation-Vibration Spectra: A Physical Chemistry Laboratory Experiment

Autor/inn/en	Bryant, Mark S.; Reeve, Scott W.; Burns, William A.
Titel	Observation and Analysis of N[subscript 2]O Rotation-Vibration Spectra: A Physical Chemistry Laboratory Experiment
Quelle	In: Journal of Chemical Education, 85 (2008) 1, S.121-124 (4 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0021-9584
Schlagwörter	Chemistry; Data Analysis; Laboratory Experiments; Hands on Science; Observation; Science Instruction + Suchen Sie Ihr Suchwort? Chemie; Auswertung; Laboratory work; Laborarbeit; Beobachtung; Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht
Abstract	The linear molecule N[subscript 2]O is presented as an alternative gas-phase species for the ubiquitous undergraduate physical chemistry rotation-vibration spectroscopy experiment. Utilizing a 0.5 cm[superscript -1] resolution teaching grade FTIR spectrometer, 15 vibrational bands, corresponding to 1229 rotation-vibration transitions, have been observed in the region 5000-500 cm[superscript -1]. The large quantity of observed data presents the opportunity to assign each of 15 students, or groups, a unique band to analyze independently. The data analysis of each band is straightforward, involving P- and R- branch transition-energy expressions similar to those used in the analysis of traditional diatomic molecules such as HCl and CO, and result in the determination of a band origin and "B" rotational constants. Spectroscopic constants of independent band analyses can be pooled to determine anharmonicity and vibration-rotation constants and prepare a vibrational energy-level diagram involving the 15 observed states. (Contains 3 figures, 3 tables and 2 notes.) (As Provided).
Anmerkungen	Division of Chemical Education of the American Chemical Society. Subscription Department, P.O. Box 1267, Bellmawr, NJ 08099-1267. Tel: 800-691-9846; Tel: 856-931-5825; Fax: 856-931-4115; e-mail: jchemed@egpp.com; Web site: http://www.jce.divched.org
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10