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All results from a given calculation for CH3C(NH2)HCH2CH3 (2-Butanamine)

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-38.685177
Energy at 298.15K-38.697911
HF Energy-38.027423
Nuclear repulsion energy112.177619
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 3602 3420 0.05      
2 A 3501 3324 0.70      
3 A 3190 3028 48.83      
4 A 3183 3022 43.70      
5 A 3173 3012 53.10      
6 A 3170 3010 31.73      
7 A 3154 2994 7.48      
8 A 3088 2932 30.87      
9 A 3078 2922 37.81      
10 A 3075 2920 27.55      
11 A 3016 2863 74.16      
12 A 1705 1619 46.95      
13 A 1540 1462 10.79      
14 A 1528 1450 1.40      
15 A 1526 1449 7.92      
16 A 1518 1441 4.75      
17 A 1504 1428 1.07      
18 A 1464 1390 4.68      
19 A 1440 1368 12.83      
20 A 1433 1361 6.56      
21 A 1403 1332 11.13      
22 A 1352 1284 2.06      
23 A 1323 1256 1.89      
24 A 1280 1216 0.58      
25 A 1224 1162 2.00      
26 A 1183 1123 15.99      
27 A 1097 1041 1.17      
28 A 1061 1007 2.69      
29 A 1039 986 8.96      
30 A 998 948 5.36      
31 A 973 923 30.43      
32 A 923 876 85.94      
33 A 834 792 1.11      
34 A 779 739 0.13      
35 A 480 455 8.32      
36 A 452 430 7.31      
37 A 376 357 0.17      
38 A 312 296 44.41      
39 A 263 250 2.38      
40 A 233 221 3.53      
41 A 221 210 13.48      
42 A 112 107 2.00      

Unscaled Zero Point Vibrational Energy (zpe) 33401.5 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 31711.4 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/CEP-31G*
ABC
0.25703 0.11262 0.08649

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)
N1 0.558 1.389 -0.245
H2 -0.226 1.949 0.110
H3 1.404 1.851 0.110
C4 1.792 -0.716 -0.011
H5 1.914 -0.751 -1.108
H6 2.670 -0.200 0.421
H7 1.774 -1.748 0.381
C8 0.487 0.022 0.340
H9 0.379 0.044 1.449
C10 -0.731 -0.718 -0.245
H11 -0.602 -0.779 -1.342
H12 -0.731 -1.751 0.153
C13 -2.081 -0.042 0.088
H14 -2.927 -0.667 -0.252
H15 -2.172 0.938 -0.413
H16 -2.188 0.110 1.179

Atom - Atom Distances (Å)
  N1 H2 H3 C4 H5 H6 H7 C8 H9 C10 H11 H12 C13 H14 H15 H16
N11.02621.02702.45112.67712.72583.42291.48872.17032.47072.69263.41813.02094.04612.77233.3469
H21.02621.63273.34453.65433.61944.21242.06742.40552.73793.11293.73482.72193.77742.25482.8938
H31.02701.63272.59872.91802.43043.62862.05892.47193.35973.61224.18783.96645.02263.72784.1322
C42.45113.34452.59871.10431.10631.10491.53932.16962.53412.73942.73233.93264.72514.31384.2350
H52.67713.65432.91801.10431.79281.79782.17523.08722.78322.52733.09704.23084.91714.47614.7749
H62.72583.61942.43041.10631.79281.78902.19542.52303.50453.76153.74764.76555.65635.04344.9260
H73.42294.21243.62861.10491.79781.78902.18922.51042.78073.09112.51584.22654.86544.83954.4484
C81.48872.06742.05891.53932.17522.19542.18921.11471.54122.15772.15952.58163.53272.91162.8048
H92.17032.40552.47192.16963.08722.52302.51041.11472.16413.07052.47652.81253.78473.28192.5813
C102.47072.73793.35972.53412.78323.50452.78071.54122.16411.10601.10731.54612.19612.20152.1989
H112.69263.11293.61222.73942.52733.76153.09112.15773.07051.10601.78852.18552.57022.50523.1079
H123.41813.73484.18782.73233.09703.74762.51582.15952.47651.10731.78852.17902.48233.10302.5762
C133.02092.72193.96643.93264.23084.76554.22652.58162.81251.54612.18552.17901.10471.10431.1065
H144.04613.77745.02264.72514.91715.65634.86543.53273.78472.19612.57022.48231.10471.78041.7879
H152.77232.25483.72784.31384.47615.04344.83952.91163.28192.20152.50523.10301.10431.78041.7941
H163.34692.89384.13224.23504.77494.92604.44842.80482.58132.19893.10792.57621.10651.78791.7941

picture of 2-Butanamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C8 C4 108.077 N1 C8 H9 112.153
N1 C8 C10 109.249 H2 N1 H3 105.346
H2 N1 C8 109.204 H3 N1 C8 108.459
C4 C8 H9 108.610 C4 C8 C10 110.695
H5 C4 H6 108.388 H5 C4 H7 108.933
H5 C4 C8 109.633 H6 C4 H7 108.011
H6 C4 C8 111.107 H7 C4 C8 110.703
C8 C10 H11 108.070 C8 C10 H12 108.131
C8 C10 C13 113.484 H9 C8 C10 108.070
C10 C13 H14 110.776 C10 C13 H15 111.227
C10 C13 H16 110.894 H11 C10 H12 107.818
H11 C10 C13 109.875 H12 C10 C13 109.295
H14 C13 H15 107.405 H14 C13 H16 107.911
H15 C13 H16 108.490
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability