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All results from a given calculation for C5H9N (Butanenitrile, 2-methyl-)

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 C1 1A
Energy calculated at MP2/CEP-31G*
 hartrees
Energy at 0K-43.116014
Energy at 298.15K-43.125373
HF Energy-42.346800
Nuclear repulsion energy119.072671
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 3203 3041 23.58      
2 A 3196 3034 24.76      
3 A 3192 3031 49.98      
4 A 3182 3021 34.95      
5 A 3163 3003 6.52      
6 A 3117 2959 10.70      
7 A 3099 2942 18.85      
8 A 3094 2937 19.75      
9 A 3086 2930 23.81      
10 A 2160 2051 0.05      
11 A 1541 1463 2.80      
12 A 1529 1452 15.09      
13 A 1525 1447 9.19      
14 A 1523 1446 6.20      
15 A 1511 1435 0.32      
16 A 1449 1375 2.52      
17 A 1445 1372 5.66      
18 A 1409 1338 0.87      
19 A 1374 1304 1.23      
20 A 1337 1269 1.86      
21 A 1300 1235 1.68      
22 A 1210 1149 2.19      
23 A 1175 1116 0.20      
24 A 1129 1072 5.87      
25 A 1077 1022 1.71      
26 A 1023 971 0.83      
27 A 991 941 6.04      
28 A 918 871 0.33      
29 A 821 780 1.13      
30 A 776 737 3.95      
31 A 542 514 0.74      
32 A 520 494 1.24      
33 A 399 378 0.24      
34 A 311 295 0.16      
35 A 295 280 0.09      
36 A 209 199 0.02      
37 A 191 182 1.77      
38 A 153 146 4.42      
39 A 88 84 1.36      

Unscaled Zero Point Vibrational Energy (zpe) 29131.3 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 27657.2 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 MP2/CEP-31G*
ABC
0.21354 0.07171 0.05754

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.597 -0.331 0.133
N2 -2.701 -0.746 -0.101
C3 -0.108 1.633 -0.149
H4 -0.207 1.647 -1.248
H5 -0.900 2.266 0.284
H6 0.870 2.063 0.126
C7 2.271 -0.406 0.062
H8 2.422 -0.312 1.153
H9 2.959 -1.183 -0.313
H10 2.555 0.550 -0.409
C11 0.809 -0.792 -0.259
H12 0.647 -0.810 -1.352
H13 0.606 -1.810 0.119
C14 -0.219 0.181 0.380
H15 -0.074 0.181 1.477

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6 C7 H8 H9 H10 C11 H12 H13 C14 H15
C11.20162.48092.78472.69363.43763.86944.14684.65664.27912.48132.73382.65361.49092.0949
N21.20163.51873.64123.53004.54814.98565.29175.68035.42153.51363.57473.48052.69223.2013
C32.48093.51871.10401.10311.10263.13953.44644.16662.88592.59432.82533.52621.54942.1801
H42.78473.64121.10401.79191.79463.47464.06454.34883.08802.82152.60323.80572.19163.0977
H52.69363.53001.10311.79191.78834.15254.29435.21043.91953.54523.81214.34892.19622.5409
H63.43764.54811.10261.79461.78832.83943.01783.88552.32712.88123.23823.88222.18932.5016
C73.86944.98563.13953.47464.15252.83941.10551.10401.10311.54542.19082.17902.57752.8003
H84.14685.29173.44644.06454.29433.01781.10551.78791.78992.19673.11052.57162.79552.5644
H94.65665.68034.16664.34885.21043.88551.10401.78791.78272.18572.56202.47313.52693.7763
H104.27915.42152.88593.08803.91952.32711.10311.78991.78272.20692.52503.10632.90753.2564
C112.48133.51362.59432.82153.54522.88121.54542.19672.18572.20691.10551.10501.55272.1767
H122.73383.57472.82532.60323.81213.23822.19083.11052.56202.52501.10551.77962.17543.0830
H132.65363.48053.52623.80574.34893.88222.17902.57162.47313.10631.10501.77962.17072.5040
C141.49092.69221.54942.19162.19622.18932.57752.79553.52692.90751.55272.17542.17071.1063
H152.09493.20132.18013.09772.54092.50162.80032.56443.77633.25642.17673.08302.50401.1063

picture of Butanenitrile, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C14 C3 109.358 C1 C14 C11 109.211
C1 C14 H15 106.594 N2 C1 C14 178.279
C3 C14 C11 113.505 C3 C14 H15 109.210
H4 C3 H5 108.562 H4 C3 H6 108.841
H4 C3 C14 110.240 H5 C3 H6 108.345
H5 C3 C14 110.657 H6 C3 C14 110.140
C7 C11 H12 110.363 C7 C11 H13 109.472
C7 C11 C14 112.599 H8 C7 H9 108.033
H8 C7 H10 108.277 H8 C7 C11 110.828
H9 C7 H10 107.738 H9 C7 C11 110.054
H10 C7 C11 111.780 C11 C14 H15 108.731
H12 C11 H13 107.227 H12 C11 C14 108.672
H13 C11 C14 108.342
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability