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

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-213.724220
Energy at 298.15K-213.736885
Nuclear repulsion energy193.885452
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 B3PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3578 3423 0.47      
2 A 3490 3339 2.45      
3 A 3142 3006 35.24      
4 A 3130 2994 40.54      
5 A 3123 2988 50.11      
6 A 3123 2987 25.45      
7 A 3091 2957 9.55      
8 A 3053 2920 30.70      
9 A 3048 2916 37.32      
10 A 3047 2915 16.15      
11 A 2925 2798 83.17      
12 A 1698 1624 40.49      
13 A 1536 1469 8.32      
14 A 1526 1460 3.02      
15 A 1523 1457 5.04      
16 A 1516 1450 3.48      
17 A 1500 1435 0.67      
18 A 1442 1379 6.18      
19 A 1430 1368 8.27      
20 A 1426 1364 8.17      
21 A 1402 1341 14.02      
22 A 1348 1289 4.11      
23 A 1314 1257 1.69      
24 A 1273 1218 0.36      
25 A 1209 1156 1.56      
26 A 1175 1124 12.48      
27 A 1079 1033 1.50      
28 A 1043 998 2.88      
29 A 1028 983 6.86      
30 A 991 948 3.86      
31 A 957 916 13.93      
32 A 887 849 116.85      
33 A 822 786 3.79      
34 A 775 741 1.23      
35 A 479 459 8.18      
36 A 454 435 5.62      
37 A 373 357 0.83      
38 A 299 286 41.27      
39 A 256 245 0.17      
40 A 231 221 6.22      
41 A 224 214 11.41      
42 A 102 98 1.91      

Unscaled Zero Point Vibrational Energy (zpe) 33031.8 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 31601.5 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 B3PW91/6-31G*
ABC
0.26180 0.11376 0.08746

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.572 1.377 -0.238
H2 -0.212 1.938 0.088
H3 1.408 1.839 0.114
C4 1.774 -0.721 -0.008
H5 1.915 -0.761 -1.095
H6 2.649 -0.224 0.428
H7 1.746 -1.746 0.380
C8 0.488 0.027 0.328
H9 0.379 0.037 1.431
C10 -0.734 -0.698 -0.245
H11 -0.615 -0.759 -1.335
H12 -0.731 -1.728 0.137
C13 -2.072 -0.042 0.091
H14 -2.909 -0.648 -0.275
H15 -2.166 0.947 -0.373
H16 -2.200 0.076 1.175

Atom - Atom Distances (Å)
  N1 H2 H3 C4 H5 H6 H7 C8 H9 C10 H11 H12 C13 H14 H15 H16
N11.01741.01822.42902.66592.70613.39261.46572.14892.45162.67873.38803.01834.02672.77463.3716
H21.01741.62363.32043.63373.60274.18182.04882.40162.70763.07573.70292.71633.75332.23862.9322
H31.01821.62362.58922.91122.42813.61032.04332.45773.33983.59784.15933.95604.99713.71584.1533
C42.42903.32042.58921.09591.09751.09571.52572.14342.51902.73302.70333.90664.69104.29394.2221
H52.66593.63372.91121.09591.77361.78102.16373.06212.78242.54163.07444.22104.89444.48224.7729
H62.70613.60272.42811.09751.77361.77042.17862.49593.48213.74883.71124.73705.61875.02014.9156
H73.39264.18183.61031.09571.78101.77042.17462.48062.76343.08022.48854.19064.82724.80814.4181
C81.46572.04882.04331.52572.16372.17862.17461.10891.53212.14502.14552.57163.51522.89472.8182
H92.14892.40162.45772.14343.06212.49592.48061.10892.14273.04592.45482.79513.76753.24992.5921
C102.45162.70763.33982.51902.78243.48212.76341.53212.14271.09811.09861.52762.17592.18472.1827
H112.67873.07573.59782.73302.54163.74883.08022.14503.04591.09811.76612.16082.52932.49813.0834
H123.38803.70294.15932.70333.07443.71122.48852.14552.45481.09861.76612.15512.46633.07832.5478
C133.01832.71633.95603.90664.22104.73704.19062.57162.79511.52762.16082.15511.09581.09631.0978
H144.02673.75334.99714.69104.89445.61874.82723.51523.76752.17592.52932.46631.09581.76161.7686
H152.77462.23863.71584.29394.48225.02014.80812.89473.24992.18472.49813.07831.09631.76161.7761
H163.37162.93224.15334.22214.77294.91564.41812.81822.59212.18273.08342.54781.09781.76861.7761

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 108.564 N1 C8 H9 112.417
N1 C8 C10 109.712 H2 N1 H3 105.801
H2 N1 C8 109.881 H3 N1 C8 109.367
C4 C8 H9 107.841 C4 C8 C10 110.935
H5 C4 H6 107.916 H5 C4 H7 108.705
H5 C4 C8 110.162 H6 C4 H7 107.648
H6 C4 C8 111.255 H7 C4 C8 111.043
C8 C10 H11 108.147 C8 C10 H12 108.159
C8 C10 C13 114.383 H9 C8 C10 107.372
C10 C13 H14 111.005 C10 C13 H15 111.686
C10 C13 H16 111.425 H11 C10 H12 107.017
H11 C10 C13 109.675 H12 C10 C13 109.197
H14 C13 H15 106.954 H14 C13 H16 107.462
H15 C13 H16 108.094
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.748     -0.945
2 H 0.313     0.336
3 H 0.309     0.357
4 C -0.508     -0.486
5 H 0.179     0.137
6 H 0.156     0.129
7 H 0.164     0.101
8 C -0.004     0.407
9 H 0.127     -0.040
10 C -0.284     0.037
11 H 0.168     0.028
12 H 0.152     0.003
13 C -0.526     -0.273
14 H 0.171     0.074
15 H 0.169     0.080
16 H 0.161     0.056


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.018 0.206 1.283 1.299
CHELPG        
AIM        
ESP -0.006 0.228 1.264 1.285


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.636 0.388 1.046
y 0.388 -31.737 2.228
z 1.046 2.228 -35.168
Traceless
 xyz
x 0.816 0.388 1.046
y 0.388 2.165 2.228
z 1.046 2.228 -2.982
Polar
3z2-r2-5.963
x2-y2-0.899
xy0.388
xz1.046
yz2.228


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 150.593
(<r2>)1/2 12.272