return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C(NH2)H2CH2CH2CH3 (1-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 CS 1A'
Energy calculated at MP2/CEP-31G*
 hartrees
Energy at 0K-38.679357
Energy at 298.15K-38.691982
Nuclear repulsion energy107.547545
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' 3494 3317 0.79      
2 A' 3177 3016 44.05      
3 A' 3096 2939 66.72      
4 A' 3086 2930 20.67      
5 A' 3079 2924 41.61      
6 A' 3066 2911 25.09      
7 A' 1703 1617 22.88      
8 A' 1533 1455 7.51      
9 A' 1524 1447 0.59      
10 A' 1516 1439 0.67      
11 A' 1511 1435 0.39      
12 A' 1446 1373 5.36      
13 A' 1437 1365 5.46      
14 A' 1396 1325 5.26      
15 A' 1295 1229 7.12      
16 A' 1169 1110 8.01      
17 A' 1109 1053 13.65      
18 A' 1099 1043 2.52      
19 A' 1052 999 30.06      
20 A' 940 892 110.71      
21 A' 910 864 55.31      
22 A' 426 404 5.74      
23 A' 391 372 0.73      
24 A' 177 168 2.86      
25 A" 3598 3416 0.00      
26 A" 3180 3019 89.82      
27 A" 3163 3003 59.08      
28 A" 3146 2987 9.72      
29 A" 3119 2962 4.97      
30 A" 1530 1452 8.45      
31 A" 1410 1338 1.36      
32 A" 1359 1290 0.22      
33 A" 1331 1263 0.00      
34 A" 1242 1179 0.00      
35 A" 1065 1011 1.29      
36 A" 931 884 0.01      
37 A" 792 751 0.76      
38 A" 734 697 4.20      
39 A" 280 266 64.37      
40 A" 246 234 0.16      
41 A" 124 118 0.01      
42 A" 112 107 3.98      

Unscaled Zero Point Vibrational Energy (zpe) 33496.2 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 31801.3 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
0.58155 0.06374 0.06064

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 2.566 0.406 0.000
C2 1.342 -0.437 0.000
C3 0.000 0.331 0.000
C4 -1.226 -0.608 0.000
C5 -2.562 0.169 0.000
H6 2.530 1.028 0.816
H7 2.530 1.028 -0.816
H8 1.393 -1.094 0.888
H9 1.393 -1.094 -0.888
H10 -0.041 0.990 -0.891
H11 -0.041 0.990 0.891
H12 -1.178 -1.267 0.889
H13 -1.178 -1.267 -0.889
H14 -3.427 -0.519 0.000
H15 -2.637 0.816 0.894
H16 -2.637 0.816 -0.894

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
N11.48642.56733.92545.13351.02691.02692.10202.10202.81642.81644.19594.19596.06375.29495.2949
C21.48641.54662.57373.95092.05512.05511.10621.10622.17822.17822.79792.79794.76954.26624.2662
C32.56731.54661.54432.56692.74792.74792.18192.18191.10921.10922.17482.17483.53032.82582.8258
C43.92542.57371.54431.54594.17694.17692.80752.80752.18022.18021.10721.10722.20262.19482.1948
C55.13353.95092.56691.54595.22745.22744.24554.24552.79702.79702.18352.18351.10501.10541.1054
H61.02692.05512.74794.17695.22741.63262.40892.95023.08612.57184.36064.68166.20765.17115.4459
H71.02692.05512.74794.17695.22741.63262.95022.40892.57183.08614.68164.36066.20765.44595.1711
H82.10201.10622.18192.80754.24552.40892.95021.77693.09312.52982.57623.12984.93424.45924.8021
H92.10201.10622.18192.80754.24552.95022.40891.77692.52983.09313.12982.57624.93424.80214.4592
H102.81642.17821.10922.18022.79703.08612.57183.09312.52981.78243.09102.52693.81233.15502.6017
H112.81642.17821.10922.18022.79702.57183.08612.52983.09311.78242.52693.09103.81232.60173.1550
H124.19592.79792.17481.10722.18354.36064.68162.57623.12983.09102.52691.77792.53122.54273.1052
H134.19592.79792.17481.10722.18354.68164.36063.12982.57622.52693.09101.77792.53123.10522.5427
H146.06374.76953.53032.20261.10506.20766.20764.93424.93423.81233.81232.53122.53121.78971.7897
H155.29494.26622.82582.19481.10545.17115.44594.45924.80213.15502.60172.54273.10521.78971.7870
H165.29494.26622.82582.19481.10545.44595.17114.80214.45922.60173.15503.10522.54271.78971.7870

picture of 1-Butanamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 115.642 N1 C2 H8 107.431
N1 C2 H9 107.431 C2 N1 H6 108.316
C2 N1 H7 108.316 C2 C3 C4 112.750
C2 C3 H10 109.094 C2 C3 H11 109.094
C3 C2 H8 109.550 C3 C2 H9 109.550
C3 C4 C5 112.333 C3 C4 H12 109.098
C3 C4 H13 109.098 C4 C3 H10 109.404
C4 C3 H11 109.404 C4 C5 H14 111.297
C4 C5 H15 110.655 C4 C5 H16 110.655
C5 C4 H12 109.670 C5 C4 H13 109.670
H6 N1 H7 105.301 H8 C2 H9 106.864
H10 C3 H11 106.924 H12 C4 H13 106.815
H14 C5 H15 108.126 H14 C5 H16 108.126
H15 C5 H16 107.859
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability