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All results from a given calculation for CH3CH2CH2CN (Butanenitrile)

using model chemistry: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-210.669654
Energy at 298.15K-210.676930
HF Energy-209.992134
Nuclear repulsion energy153.601856
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 MP2/6-31G*
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' 3201 3019 19.95      
2 A' 3123 2945 19.34      
3 A' 3109 2931 1.20      
4 A' 3106 2929 15.40      
5 A' 2215 2089 0.12      
6 A' 1570 1481 6.72      
7 A' 1557 1468 1.55      
8 A' 1536 1449 3.08      
9 A' 1475 1391 3.13      
10 A' 1435 1353 2.03      
11 A' 1342 1265 0.99      
12 A' 1153 1087 3.41      
13 A' 1096 1033 0.05      
14 A' 984 928 1.87      
15 A' 907 855 2.03      
16 A' 521 491 0.81      
17 A' 352 332 0.03      
18 A' 162 153 5.85      
19 A" 3197 3015 36.55      
20 A" 3175 2994 2.76      
21 A" 3156 2976 0.11      
22 A" 1564 1475 8.80      
23 A" 1367 1290 0.02      
24 A" 1303 1228 0.06      
25 A" 1166 1100 0.19      
26 A" 904 852 0.16      
27 A" 765 721 3.87      
28 A" 367 346 0.45      
29 A" 252 238 0.01      
30 A" 101 95 3.99      

Unscaled Zero Point Vibrational Energy (zpe) 23079.9 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 21764.4 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 MP2/6-31G*
ABC
0.79162 0.07509 0.07131

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -2.628 0.328 0.000
C2 -1.457 0.480 0.000
C3 0.000 0.637 0.000
C4 0.729 -0.713 0.000
C5 2.243 -0.527 0.000
H6 0.288 1.223 0.880
H7 0.288 1.223 -0.880
H8 0.418 -1.286 0.879
H9 0.418 -1.286 -0.879
H10 2.754 -1.493 0.000
H11 2.571 0.027 0.885
H12 2.571 0.027 -0.885

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.18082.64663.51544.94613.17513.17513.55783.55785.68225.28275.2827
C21.18081.46592.49113.83522.09122.09122.72212.72214.65094.14934.1493
C32.64661.46591.53452.52721.09581.09582.15582.15583.48182.78672.7867
C43.51542.49111.53451.52532.17162.17161.09471.09472.16992.17292.1729
C54.94613.83522.52721.52532.76732.76732.16372.16371.09311.09421.0942
H63.17512.09121.09582.17162.76731.76092.51243.06713.77252.57723.1240
H73.17512.09121.09582.17162.76731.76093.06712.51243.77253.12402.5772
H83.55782.72212.15581.09472.16372.51243.06711.75762.50472.52193.0776
H93.55782.72212.15581.09472.16373.06712.51241.75762.50473.07762.5219
H105.68224.65093.48182.16991.09313.77253.77252.50472.50471.76821.7682
H115.28274.14932.78672.17291.09422.57723.12402.52193.07761.76821.7704
H125.28274.14932.78672.17291.09423.12402.57723.07762.52191.76821.7704

picture of Butanenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 178.746 C2 C3 C4 112.227
C2 C3 H6 108.576 C2 C3 H7 108.576
C3 C4 C5 111.369 C3 C4 H8 109.008
C3 C4 H9 109.008 C4 C3 H6 110.185
C4 C3 H7 110.185 C4 C5 H10 110.856
C4 C5 H11 111.036 C4 C5 H12 111.036
C5 C4 H8 110.269 C5 C4 H9 110.269
H6 C3 H7 106.928 H8 C4 H9 106.795
H10 C5 H11 107.888 H10 C5 H12 107.888
H11 C5 H12 108.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability