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All results from a given calculation for C2H5CN (ethyl cyanide)

using model chemistry: wB97X-D/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes Cs 1A'
Energy calculated at wB97X-D/6-31+G**
 hartrees
Energy at 0K-172.018791
Energy at 298.15K 
HF Energy-172.018791
Nuclear repulsion energy102.773202
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at wB97X-D/6-31+G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3167 3016 17.61 81.07 0.69 0.82
2 A' 3087 2940 7.14 108.69 0.08 0.15
3 A' 3077 2931 19.32 148.10 0.01 0.01
4 A' 2390 2276 12.27 79.09 0.20 0.34
5 A' 1516 1443 7.66 6.38 0.73 0.84
6 A' 1486 1415 6.69 11.67 0.74 0.85
7 A' 1434 1365 2.94 2.08 0.34 0.51
8 A' 1361 1296 3.23 3.38 0.62 0.77
9 A' 1104 1052 4.90 4.10 0.13 0.24
10 A' 1033 983 0.83 5.99 0.46 0.63
11 A' 850 810 0.23 5.12 0.13 0.23
12 A' 552 526 1.08 2.46 0.34 0.50
13 A' 212 202 4.20 3.48 0.74 0.85
14 A" 3171 3019 16.33 24.88 0.75 0.86
15 A" 3134 2984 0.38 96.50 0.75 0.86
16 A" 1510 1438 9.96 11.58 0.75 0.86
17 A" 1296 1234 0.00 5.36 0.75 0.86
18 A" 1122 1068 0.51 0.04 0.75 0.86
19 A" 800 761 3.65 0.42 0.75 0.86
20 A" 393 374 0.17 3.58 0.75 0.86
21 A" 222 212 0.92 0.81 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 16457.2 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 15672.2 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at wB97X-D/6-31+G** An error occurred on the server when processing the URL. Please contact the system administrator.

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