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All results from a given calculation for CH3CH2CH2CN (Butanenitrile)

using model chemistry: MP2/CEP-31G*

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-31G*
 hartrees
Energy at 0K-36.336242
Energy at 298.15K-36.343424
HF Energy-35.693862
Nuclear repulsion energy83.088247
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-31G*
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' 3187 3026 31.73      
2 A' 3115 2958 32.94      
3 A' 3109 2951 0.68      
4 A' 3085 2929 27.00      
5 A' 2172 2062 0.04      
6 A' 1532 1454 8.59      
7 A' 1520 1443 1.02      
8 A' 1506 1430 3.69      
9 A' 1451 1377 2.90      
10 A' 1417 1346 2.54      
11 A' 1313 1247 1.83      
12 A' 1139 1082 2.75      
13 A' 1083 1028 0.04      
14 A' 965 916 2.49      
15 A' 893 848 2.83      
16 A' 511 486 1.49      
17 A' 341 324 0.05      
18 A' 157 149 4.86      
19 A" 3195 3033 64.72      
20 A" 3181 3020 3.51      
21 A" 3166 3006 0.49      
22 A" 1530 1453 9.84      
23 A" 1356 1287 0.09      
24 A" 1284 1219 0.04      
25 A" 1146 1088 0.04      
26 A" 883 839 0.34      
27 A" 748 710 4.28      
28 A" 353 335 0.00      
29 A" 238 226 0.01      
30 A" 103 98 3.76      

Unscaled Zero Point Vibrational Energy (zpe) 22838.9 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 21683.3 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-31G*
ABC
0.77017 0.07342 0.06970

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -2.667 0.289 0.000
C2 -1.479 0.467 0.000
C3 0.000 0.646 0.000
C4 0.746 -0.713 0.000
C5 2.275 -0.497 0.000
H6 0.273 1.236 0.892
H7 0.273 1.236 -0.892
H8 0.439 -1.291 0.890
H9 0.439 -1.291 -0.890
H10 2.805 -1.465 0.000
H11 2.593 0.068 0.895
H12 2.593 0.068 -0.895

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.20082.69073.55715.00463.21483.21483.59693.59695.74685.34025.3402
C21.20081.49012.51913.87672.11132.11132.75032.75034.70054.18874.1887
C32.69071.49011.55012.54631.10421.10422.17582.17583.51102.80322.8032
C43.55712.51911.55011.54452.19552.19551.10431.10432.19252.19602.1960
C55.00463.87672.54631.54452.79502.79502.18912.18911.10371.10501.1050
H63.21482.11131.10422.19552.79501.78452.53233.09663.80912.59773.1529
H73.21482.11131.10422.19552.79501.78453.09662.53233.80913.15292.5977
H83.59692.75032.17581.10432.18912.53233.09661.77982.53392.54663.1095
H93.59692.75032.17581.10432.18913.09662.53231.77982.53393.10952.5466
H105.74684.70053.51102.19251.10373.80913.80912.53392.53391.78821.7882
H115.34024.18872.80322.19601.10502.59773.15292.54663.10951.78821.7891
H125.34024.18872.80322.19601.10503.15292.59773.10952.54661.78821.7891

picture of Butanenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 178.347 C2 C3 C4 111.894
C2 C3 H6 108.014 C2 C3 H7 108.014
C3 C4 C5 110.734 C3 C4 H8 108.950
C3 C4 H9 108.950 C4 C3 H6 110.484
C4 C3 H7 110.484 C4 C5 H10 110.666
C4 C5 H11 110.869 C4 C5 H12 110.869
C5 C4 H8 110.367 C5 C4 H9 110.367
H6 C3 H7 107.809 H8 C4 H9 107.393
H10 C5 H11 108.114 H10 C5 H12 108.114
H11 C5 H12 108.099
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability