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 CH3C(NH2)HCH2CH3 (2-Butanamine)

using model chemistry: B3LYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/6-31G
 hartrees
Energy at 0K-213.744133
Energy at 298.15K-213.756703
Nuclear repulsion energy192.971523
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 B3LYP/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 3648 3509 0.03      
2 A 3534 3400 1.07      
3 A 3131 3012 43.99      
4 A 3114 2995 55.16      
5 A 3110 2991 55.61      
6 A 3109 2991 29.78      
7 A 3077 2960 8.12      
8 A 3039 2924 26.07      
9 A 3034 2919 39.48      
10 A 3031 2916 28.51      
11 A 2887 2777 102.09      
12 A 1705 1640 43.26      
13 A 1555 1496 8.68      
14 A 1546 1487 4.36      
15 A 1542 1484 4.19      
16 A 1537 1478 4.51      
17 A 1524 1466 0.62      
18 A 1453 1398 3.45      
19 A 1452 1397 10.60      
20 A 1429 1375 5.37      
21 A 1415 1361 28.93      
22 A 1375 1323 5.50      
23 A 1326 1275 2.20      
24 A 1269 1220 2.35      
25 A 1216 1170 3.46      
26 A 1187 1142 3.58      
27 A 1073 1033 7.81      
28 A 1048 1008 4.61      
29 A 1022 983 2.64      
30 A 1016 977 4.74      
31 A 945 909 3.91      
32 A 839 807 6.99      
33 A 788 758 1.13      
34 A 623 599 199.74      
35 A 488 470 18.49      
36 A 462 444 7.58      
37 A 380 365 1.02      
38 A 272 262 24.59      
39 A 261 251 0.09      
40 A 230 221 1.22      
41 A 207 199 33.79      
42 A 101 97 3.42      

Unscaled Zero Point Vibrational Energy (zpe) 32997.6 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 31743.6 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 B3LYP/6-31G
ABC
0.25923 0.11248 0.08638

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.578 1.385 -0.199
H2 -0.217 1.980 0.003
H3 1.457 1.854 -0.013
C4 1.784 -0.728 -0.011
H5 1.920 -0.759 -1.097
H6 2.657 -0.230 0.429
H7 1.756 -1.755 0.372
C8 0.488 0.019 0.335
H9 0.374 0.006 1.440
C10 -0.741 -0.699 -0.258
H11 -0.619 -0.736 -1.348
H12 -0.740 -1.736 0.108
C13 -2.085 -0.041 0.093
H14 -2.924 -0.634 -0.288
H15 -2.171 0.959 -0.349
H16 -2.211 0.053 1.180

Atom - Atom Distances (Å)
  N1 H2 H3 C4 H5 H6 H7 C8 H9 C10 H11 H12 C13 H14 H15 H16
N11.01311.01392.44042.68382.70683.40161.46932.15142.46712.69273.40153.03484.04342.78563.3842
H21.01311.67893.36733.64373.65054.23992.11032.51212.74283.06043.75432.75403.77522.23303.0128
H31.01391.67892.60262.86612.44483.64102.10392.58803.37803.57774.21054.01885.04623.75214.2570
C42.44043.36732.60261.09571.09771.09571.53512.15202.53712.74982.72003.93114.71704.31304.2410
H52.68383.64372.86611.09571.77611.78292.16933.06802.79072.55083.07934.23944.91254.49944.7862
H62.70683.65052.44481.09771.77611.77212.18542.50813.49883.76143.73004.75835.64185.03314.9339
H73.40164.23993.64101.09571.78291.77212.18042.47992.78313.10432.50994.21554.85734.82754.4334
C81.46932.11032.10391.53512.16932.18542.18041.11091.54222.15152.15402.58553.52972.90222.8285
H92.15142.51212.58802.15203.06802.50812.47991.11092.15033.05142.45972.80443.77813.25362.5984
C102.46712.74283.37802.53712.79073.49882.78311.54222.15031.09791.09941.53752.18422.19162.1895
H112.69273.06043.57772.74982.55083.76143.10432.15153.05141.09791.77082.17082.53962.50633.0903
H123.40153.75434.21052.72003.07933.73002.50992.15402.45971.09941.77082.16432.47803.08552.5520
C133.03482.75404.01883.93114.23944.75834.21552.58552.80441.53752.17082.16431.09611.09661.0981
H144.04343.77525.04624.71704.91255.64184.85733.52973.77812.18422.53962.47801.09611.76361.7709
H152.78562.23303.75214.31304.49945.03314.82752.90223.25362.19162.50633.08551.09661.76361.7779
H163.38423.01284.25704.24104.78624.93394.43342.82852.59842.18953.09032.55201.09811.77091.7779

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 108.615 N1 C8 H9 112.240
N1 C8 C10 109.989 H2 N1 H3 111.832
H2 N1 C8 115.212 H3 N1 C8 114.584
C4 C8 H9 107.764 C4 C8 C10 111.061
H5 C4 H6 108.145 H5 C4 H7 108.898
H5 C4 C8 109.970 H6 C4 H7 107.781
H6 C4 C8 111.120 H7 C4 C8 110.842
C8 C10 H11 107.973 C8 C10 H12 108.084
C8 C10 C13 114.178 H9 C8 C10 107.166
C10 C13 H14 110.954 C10 C13 H15 111.515
C10 C13 H16 111.255 H11 C10 H12 107.394
H11 C10 C13 109.790 H12 C10 C13 109.195
H14 C13 H15 107.090 H14 C13 H16 107.627
H15 C13 H16 108.211
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.706      
2 H 0.277      
3 H 0.273      
4 C -0.401      
5 H 0.147      
6 H 0.121      
7 H 0.128      
8 C 0.047      
9 H 0.096      
10 C -0.207      
11 H 0.135      
12 H 0.115      
13 C -0.421      
14 H 0.134      
15 H 0.133      
16 H 0.128      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.047 0.326 1.100 1.148
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.641 0.444 0.834
y 0.444 -31.674 1.727
z 0.834 1.727 -35.798
Traceless
 xyz
x 1.096 0.444 0.834
y 0.444 2.545 1.727
z 0.834 1.727 -3.641
Polar
3z2-r2-7.282
x2-y2-0.966
xy0.444
xz0.834
yz1.727


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.306 0.055 0.019
y 0.055 7.477 -0.135
z 0.019 -0.135 6.461


<r2> (average value of r2) Å2
<r2> 152.239
(<r2>)1/2 12.339