1. First High Resolution IR Study of the ν14 (A1) A-Type Band of 2-13C-Propene Near 421.847 cm-1
Stephen J. Daunt, Robert Grzywacz
Dept. Physics & Astronomy, The University of Tennessee, Knoxville, TN
Walter J. Lafferty
Optical Technology Division, NIST, Gaithersburg, MD
Jean-Marie Flaud
Universités Paris Est Créteil et Paris Diderot, LISA, Créteil, France
Brant Billinghurst
Canadian Light Source, University of Saskatchewan, Saskatoon, SK, Canada

3. CLS Far-IR Beamline
Brant
2m White cell
Bruker IFS125 HR

4. Propene Impurity in 2-13C Sample
CLS Survey of cm-1
Propene Impurity in 2-13C Sample
v C-Propene
v9 2-13C-Propane
Room Temp; Res. = cm-1; P = Torr; L = 72 meters

5. Cooled Cell (217.25K)-Water Lines Gone

6. V14 (A1) Band of 2-13C-Propene
CLS Data
PGO Calc.

7. Overlap of the v14 P Branch for 2-13C-Propene
with the v9 R-Branch of 2-13C-Propane

8. Classic Type A Band (almost)
P-Side
R-Side
qPK(J) =
qRK(J) =

9. Central Q- Branch Structure
qQK J-Clumps
K =
Strongest line is J = K
Then J increases while
degrading to the red

10. Quality of Fit as Seen on R-Side

11. Quality of Fit as Seen on P-Side

12. Perturbed Q Branch Structures15 16
Ka = 17 18

14. 2-13C-Propene v14 Residuals All Line Fit

15. Comparison GS Constants from All Line Fit to MW1
IR - This Work MW
1 Craig, Groner, Conrad, Gurusinghe & Tubergen, J. Mol. Spectrosc. 328, 1 (2016)

16. Acknowledgements UTK & Dept. of Physics & Astronomy
Canadian Light Source and its support agencies (NSERC, USask, Province of Saskatchewan)
NIST
Jon Hougen, Bob McKellar, Colin Western, Dennis Tokaryk, Scott Goudreau,