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All results from a given calculation for CH3CH2CH2CN (Butanenitrile)

using model chemistry: MP2/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/CEP-121G*
 hartrees
Energy at 0K-36.396742
Energy at 298.15K-36.403925
HF Energy-35.712366
Nuclear repulsion energy83.643127
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 MP2/CEP-121G*
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 3017 29.80      
2 A' 3094 2948 29.33      
3 A' 3087 2941 0.14      
4 A' 3064 2920 24.61      
5 A' 2143 2042 0.14      
6 A' 1543 1470 9.20      
7 A' 1528 1456 1.54      
8 A' 1515 1444 3.08      
9 A' 1451 1382 3.56      
10 A' 1416 1349 1.97      
11 A' 1317 1254 1.31      
12 A' 1131 1078 2.07      
13 A' 1075 1024 0.11      
14 A' 956 911 2.55      
15 A' 886 844 2.12      
16 A' 512 488 1.15      
17 A' 342 326 0.08      
18 A' 156 149 5.35      
19 A" 3169 3019 55.11      
20 A" 3153 3004 1.14      
21 A" 3138 2990 0.18      
22 A" 1538 1465 9.56      
23 A" 1348 1285 0.09      
24 A" 1281 1221 0.06      
25 A" 1148 1094 0.00      
26 A" 881 839 0.19      
27 A" 739 704 2.40      
28 A" 352 335 0.02      
29 A" 239 227 0.01      
30 A" 96 91 3.94      

Unscaled Zero Point Vibrational Energy (zpe) 22731.7 cm-1
Scaled (by 0.9528) Zero Point Vibrational Energy (zpe) 21658.8 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 MP2/CEP-121G*
ABC
0.77925 0.07432 0.07054

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -2.644 0.304 0.000
C2 -1.470 0.476 0.000
C3 0.000 0.647 0.000
C4 0.736 -0.711 0.000
C5 2.261 -0.516 0.000
H6 0.277 1.232 0.885
H7 0.277 1.232 -0.885
H8 0.426 -1.281 0.883
H9 0.426 -1.281 -0.883
H10 2.776 -1.481 0.000
H11 2.584 0.040 0.888
H12 2.584 0.040 -0.888

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.18632.66623.52914.97263.18983.18983.56613.56615.70635.30925.3092
C21.18631.48022.50533.86042.09912.09912.73192.73194.67554.17294.1729
C32.66621.48021.54452.54201.09621.09622.16312.16313.49782.79862.7986
C43.52912.50531.54451.53712.18372.18371.09571.09572.18042.18312.1831
C54.97263.86042.54201.53712.78792.78792.17522.17521.09451.09591.0959
H63.18982.09911.09622.18372.78791.76952.51783.07623.79342.59683.1440
H73.18982.09911.09622.18372.78791.76953.07622.51783.79343.14402.5968
H83.56612.73192.16311.09572.17522.51783.07621.76532.51812.53023.0880
H93.56612.73192.16311.09572.17523.07622.51781.76532.51813.08802.5302
H105.70634.67553.49782.18041.09453.79343.79342.51812.51811.77171.7717
H115.30924.17292.79862.18311.09592.59683.14402.53023.08801.77171.7752
H125.30924.17292.79862.18311.09593.14402.59683.08802.53021.77171.7752

picture of Butanenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 178.292 C2 C3 C4 111.826
C2 C3 H6 108.203 C2 C3 H7 108.203
C3 C4 C5 111.157 C3 C4 H8 108.836
C3 C4 H9 108.836 C4 C3 H6 110.421
C4 C3 H7 110.421 C4 C5 H10 110.778
C4 C5 H11 110.914 C4 C5 H12 110.914
C5 C4 H8 110.292 C5 C4 H9 110.292
H6 C3 H7 107.631 H8 C4 H9 107.329
H10 C5 H11 107.965 H10 C5 H12 107.965
H11 C5 H12 108.184
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability