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

using model chemistry: B2PLYP=FULL/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes Cs 1A'
Energy calculated at B2PLYP=FULL/daug-cc-pVDZ
 hartrees
Energy at 0K-171.912932
Energy at 298.15K 
HF Energy-171.710970
Nuclear repulsion energy102.334550
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 B2PLYP=FULL/daug-cc-pVDZ
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' 3154 3154 18.07 68.60 0.70 0.82
2 A' 3076 3076 8.54 96.48 0.07 0.13
3 A' 3069 3069 15.88 209.21 0.00 0.01
4 A' 2273 2273 3.31 82.31 0.15 0.26
5 A' 1493 1493 4.91 2.68 0.73 0.84
6 A' 1460 1460 4.84 8.20 0.70 0.82
7 A' 1404 1404 1.24 0.72 0.35 0.52
8 A' 1338 1338 4.02 2.61 0.39 0.56
9 A' 1091 1091 3.10 6.36 0.12 0.21
10 A' 1027 1027 0.55 4.10 0.47 0.64
11 A' 843 843 0.21 6.80 0.06 0.12
12 A' 537 537 0.71 1.39 0.14 0.24
13 A' 208 208 4.17 1.95 0.70 0.83
14 A" 3158 3158 17.04 22.91 0.75 0.86
15 A" 3119 3119 0.71 83.67 0.75 0.86
16 A" 1486 1486 7.04 5.24 0.75 0.86
17 A" 1282 1282 0.00 2.01 0.75 0.86
18 A" 1107 1107 0.47 0.12 0.75 0.86
19 A" 782 782 2.64 0.36 0.75 0.86
20 A" 378 378 0.31 1.19 0.75 0.86
21 A" 220 220 1.05 0.33 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 16251.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 16251.6 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 B2PLYP=FULL/daug-cc-pVDZ An error occurred on the server when processing the URL. Please contact the system administrator.

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