Table 3
Spectroscopic constants for skew acrylamide in the ground state tunneling doublet (A-reduction, Ir -representation).
| This work | Marstokk et al. (2000) (a) | ||||
|---|---|---|---|---|---|
| 0+ | 0− | 0+ | 0− | ||
| A / MHz | 10 049.46072 (34) (b) | 9996.61018 (39) | 10 049.549 (22) | 10 002.8 (5) | |
| B / MHz | 4287.87861 (14) | 4291.77177 (19) | 4287.924 (12) | 4292.160 (24) | |
| C / MHz | 3035.794577 (67) | 3050.747935 (98) | 3035.806 (12) | 3050.385 (33) | |
| ΔJ / kHz | 0.990767 (85) | 0.95662 (11) | 1.14 (9) | 1.15 (16) | |
| ΔJK / kHz | 3.47106 (38) | 4.24560 (48) | 4.20 (12) | 3.35 (18) | |
| ΔK / kHz | 7.0201 (13) | 5.0704 (15) | 8.0 (6) | 8.0 | |
| δJ / kHz | 0.166200 (44) | 0.194935 (60) | 0.283 (9) | 0.28 | |
| δK / kHz | 5.03612 (65) | 4.64196 (99) | 3.23 (15) | 3.2 | |
| ΦJ / Hz | 0.002027 (27) | 0.000986 (39) | ... | ... | |
| ΦJK / Hz | –0.00838 (29) | –0.00530 (29) | ... | ... | |
| ΦKJ / Hz | –0.2776 (11) | –0.1182 (12) | ... | ... | |
| ΦK / Hz | 0.1495 (16) | 0.0781 (18) | ... | ... | |
| ϕJ / Hz | –0.000622 (14) | –0.000261 (19) | ... | ... | |
| ϕJK / Hz | 0.02621 (24) | 0.00500 (34) | ... | ... | |
| ϕK / Hz | –0.1939 (23) | –0.0737 (26) | ... | ... | |
| ΔE / MHz | 415050.244 (55) | ... | |||
| ΔE / cm−1 | 13.8445859 (18) | ... | |||
| Fbc / MHz | 4.08214 (95) | ... | |||
 / kHz |
–0.14465 (66) | ... | |||
 / kHz |
1.1873 (37) | ... | |||
 / Hz |
0.001568 (53) | ... | |||
 / Hz |
0.0624 (25) | ... | |||
| Fac / MHz | –1.2209 (94) | ... | |||
 / kHz |
–0.2239 (41) | ... | |||
 / kHz |
3.407 (25) | ... | |||
| Jmin∕Jmax | 4 / 76 | 6 / 77 | 4 / 27 | 6 / 8 | |
 |
0 / 24 | 0 / 24 | 0 / 8 | 2 / 7 | |
| N(c) | 1419 | 1255 | 53 | 14 | |
| σfit (d) / MHz | 0.040 | 0.035 | 0.196 | 0.129 | |
| σw (e) | 1.03 | 1.08 | ... | ... | |
Notes. (a)The ground state and the excited C–C torsional state in Marstokk et al. (2000) correspond to 0+ and 0− states, respectively. (b)The numbers in parentheses are the parameter uncertainties in units of the last decimal digit. Their values are close to 1σ standard uncertainties (67% confidence level) because the unitless (weighted) deviation of the fit is close to 1.0. SPFIT/SPCAT program package (Pickett 1991) was used for the analysis. (c)Number of distinct frequency lines in the fit. (d)Root mean square deviation of the fit. (e)Unitless (weighted) deviation of the fit.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.