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

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 C1 1A
Energy calculated at MP2/CEP-121G*
 hartrees
Energy at 0K-38.749839
Energy at 298.15K-38.762616
HF Energy-38.043199
Nuclear repulsion energy112.764001
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 3584 3414 0.15      
2 A 3485 3320 1.76      
3 A 3166 3017 47.18      
4 A 3162 3013 26.01      
5 A 3150 3001 49.45      
6 A 3147 2999 30.97      
7 A 3122 2975 12.70      
8 A 3063 2918 30.28      
9 A 3057 2912 33.04      
10 A 3055 2911 26.98      
11 A 2982 2841 71.94      
12 A 1719 1638 53.56      
13 A 1551 1478 10.76      
14 A 1536 1463 10.58      
15 A 1535 1463 0.33      
16 A 1528 1456 4.17      
17 A 1514 1442 0.52      
18 A 1454 1386 5.01      
19 A 1441 1373 11.22      
20 A 1435 1367 6.27      
21 A 1399 1333 13.30      
22 A 1352 1289 2.07      
23 A 1317 1255 1.10      
24 A 1273 1212 0.33      
25 A 1221 1163 1.84      
26 A 1176 1121 13.30      
27 A 1089 1037 1.03      
28 A 1053 1003 2.41      
29 A 1027 979 7.08      
30 A 990 944 1.62      
31 A 967 921 32.97      
32 A 912 869 93.94      
33 A 828 789 1.19      
34 A 776 739 0.86      
35 A 479 456 6.38      
36 A 461 439 6.99      
37 A 380 362 0.21      
38 A 316 301 35.08      
39 A 262 250 5.96      
40 A 235 224 2.06      
41 A 217 207 19.09      
42 A 120 114 1.52      

Unscaled Zero Point Vibrational Energy (zpe) 33266.6 cm-1
Scaled (by 0.9528) Zero Point Vibrational Energy (zpe) 31696.4 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-121G*
ABC
0.26015 0.11381 0.08728

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.527 1.379 -0.261
H2 -0.236 1.941 0.121
H3 1.389 1.843 0.032
C4 1.798 -0.693 -0.015
H5 1.921 -0.716 -1.104
H6 2.662 -0.175 0.420
H7 1.795 -1.721 0.365
C8 0.489 0.022 0.338
H9 0.393 0.054 1.440
C10 -0.721 -0.742 -0.219
H11 -0.584 -0.850 -1.303
H12 -0.723 -1.749 0.220
C13 -2.068 -0.055 0.069
H14 -2.906 -0.693 -0.232
H15 -2.157 0.886 -0.485
H16 -2.176 0.158 1.140

Atom - Atom Distances (Å)
  N1 H2 H3 C4 H5 H6 H7 C8 H9 C10 H11 H12 C13 H14 H15 H16
N11.02161.02252.44312.65322.72693.40681.48412.16082.46072.69893.40212.98274.00932.73803.2803
H21.02161.63043.33033.63433.60014.19382.06282.38672.74733.15243.72302.70983.76732.27452.8254
H31.02251.63042.56872.84902.41643.60152.05432.48503.34613.59504.17063.94394.99473.70964.0961
C42.44313.33032.56871.09571.09731.09561.53272.15622.52792.71202.74273.91894.70824.28424.2249
H52.65323.63432.84901.09571.77801.78402.16183.06552.78642.51603.13164.20974.90454.42474.7521
H62.72693.60012.41641.09731.77801.77332.18352.49833.48943.73593.73804.74425.62925.01654.9025
H73.40684.19383.60151.09561.78401.77332.17752.50382.76233.03292.52174.21684.84784.80944.4604
C81.48412.06282.05431.53272.16182.18352.17751.10671.53552.14562.14852.57193.51522.90242.7861
H92.16082.38672.48502.15623.06552.49832.50381.10672.15163.04922.44622.81933.77283.30172.5886
C102.46072.74733.34612.52792.78643.48942.76231.53552.15161.09811.09881.53872.18462.18622.1848
H112.69893.15243.59502.71202.51603.73593.03292.14563.04921.09811.77432.17212.56202.48143.0858
H123.40213.72304.17062.74273.13163.73802.52172.14852.44621.09881.77432.16832.46613.08122.5679
C132.98272.70983.94393.91894.20974.74424.21682.57192.81931.53872.17212.16831.09531.09491.0976
H144.00933.76734.99474.70824.90455.62924.84783.51523.77282.18462.56202.46611.09531.76561.7717
H152.73802.27453.70964.28424.42475.01654.80942.90243.30172.18622.48143.08121.09491.76561.7806
H163.28032.82544.09614.22494.75214.90254.46042.78612.58862.18483.08582.56791.09761.77171.7806

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 108.146 N1 C8 H9 112.209
N1 C8 C10 109.148 H2 N1 H3 105.813
H2 N1 C8 109.438 H3 N1 C8 108.685
C4 C8 H9 108.472 C4 C8 C10 110.953
H5 C4 H6 108.345 H5 C4 H7 109.004
H5 C4 C8 109.545 H6 C4 H7 107.928
H6 C4 C8 111.162 H7 C4 C8 110.790
C8 C10 H11 107.966 C8 C10 H12 108.146
C8 C10 C13 113.563 H9 C8 C10 107.933
C10 C13 H14 110.950 C10 C13 H15 111.095
C10 C13 H16 110.827 H11 C10 H12 107.731
H11 C10 C13 109.798 H12 C10 C13 109.460
H14 C13 H15 107.437 H14 C13 H16 107.788
H15 C13 H16 108.608
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability