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

using model chemistry: PBEPBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBE/3-21G
 hartrees
Energy at 0K-212.331539
Energy at 298.15K-212.344018
Nuclear repulsion energy192.395451
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 PBEPBE/3-21G
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 3379 3349 3.59      
2 A 3281 3251 9.33      
3 A 3070 3042 29.63      
4 A 3054 3027 37.61      
5 A 3049 3021 36.84      
6 A 3046 3018 20.76      
7 A 3025 2998 1.48      
8 A 2979 2952 31.56      
9 A 2975 2948 9.82      
10 A 2972 2945 26.91      
11 A 2827 2802 84.57      
12 A 1663 1648 26.81      
13 A 1531 1517 11.44      
14 A 1521 1507 4.26      
15 A 1514 1501 5.15      
16 A 1506 1492 6.04      
17 A 1479 1466 2.91      
18 A 1401 1389 2.68      
19 A 1398 1385 22.23      
20 A 1376 1363 4.01      
21 A 1365 1352 17.04      
22 A 1324 1312 1.75      
23 A 1292 1281 4.38      
24 A 1250 1239 0.23      
25 A 1183 1172 1.81      
26 A 1126 1115 0.57      
27 A 1039 1030 5.81      
28 A 1013 1003 4.36      
29 A 1005 995 3.55      
30 A 990 981 5.38      
31 A 924 916 6.37      
32 A 812 804 7.40      
33 A 772 765 32.64      
34 A 699 693 117.28      
35 A 463 459 6.71      
36 A 441 437 10.10      
37 A 365 361 0.27      
38 A 290 288 28.87      
39 A 252 250 2.64      
40 A 233 231 4.30      
41 A 205 204 31.28      
42 A 80 79 7.61      

Unscaled Zero Point Vibrational Energy (zpe) 32084.3 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 31792.3 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 PBEPBE/3-21G
ABC
0.25728 0.11297 0.08684

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.547 1.386 -0.232
H2 -0.246 1.960 0.105
H3 1.426 1.857 0.054
C4 1.792 -0.710 -0.018
H5 1.906 -0.682 -1.116
H6 2.668 -0.212 0.440
H7 1.768 -1.758 0.325
C8 0.487 0.017 0.358
H9 0.377 0.001 1.471
C10 -0.729 -0.722 -0.248
H11 -0.583 -0.748 -1.343
H12 -0.731 -1.762 0.133
C13 -2.077 -0.042 0.085
H14 -2.923 -0.634 -0.305
H15 -2.126 0.959 -0.378
H16 -2.205 0.061 1.179

Atom - Atom Distances (Å)
  N1 H2 H3 C4 H5 H6 H7 C8 H9 C10 H11 H12 C13 H14 H15 H16
N11.03591.03712.44692.62742.73893.41851.49122.20122.46422.65813.41673.00374.01592.71073.3635
H21.03591.67633.36163.61993.65014.23482.09192.46802.74833.08953.75352.71283.75012.18362.9311
H31.03711.67632.59342.83592.44373.64132.08752.55973.37423.57384.21343.98425.02473.68884.2033
C42.44693.36162.59341.10361.10611.10381.54102.17462.53202.72052.73843.92764.72534.27434.2431
H52.62743.61992.83591.10361.79471.80412.16193.08192.77462.50053.11134.20854.89724.41534.7659
H62.73893.65012.44371.10611.79471.79242.19442.52133.50303.74643.74804.76055.65625.00214.9354
H73.41854.23483.64131.10381.80411.79242.18982.51902.76363.05522.50674.21714.86544.80054.4521
C81.49122.09192.08751.54102.16192.19442.18981.11911.54652.15032.16782.57853.53452.87332.8141
H92.20122.46802.55972.17463.08192.52132.51901.11912.16833.06672.47552.81833.80133.25602.5984
C102.46422.74833.37422.53202.77463.50302.76361.54652.16831.10541.10701.54572.19692.19012.1969
H112.65813.08953.57382.72052.50053.74643.05522.15033.06671.10541.79692.18352.56272.49533.1055
H123.41673.75354.21342.73843.11133.74802.50672.16782.47551.10701.79692.18392.50403.10032.5670
C133.00372.71283.98423.92764.20854.76054.21712.57852.81831.54572.18352.18391.10421.10451.1062
H144.01593.75015.02474.72534.89725.65624.86543.53453.80132.19692.56272.50401.10421.78311.7895
H152.71072.18363.68884.27434.41535.00214.80052.87333.25602.19012.49533.10031.10451.78311.7989
H163.36352.93114.20334.24314.76594.93544.45212.81412.59842.19693.10552.56701.10621.78951.7989

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 107.594 N1 C8 H9 114.217
N1 C8 C10 108.412 H2 N1 H3 107.924
H2 N1 C8 110.454 H3 N1 C8 110.011
C4 C8 H9 108.628 C4 C8 C10 110.184
H5 C4 H6 108.624 H5 C4 H7 109.625
H5 C4 C8 108.533 H6 C4 H7 108.406
H6 C4 C8 110.925 H7 C4 C8 110.697
C8 C10 H11 107.179 C8 C10 H12 108.418
C8 C10 C13 112.998 H9 C8 C10 107.789
C10 C13 H14 110.910 C10 C13 H15 110.352
C10 C13 H16 110.789 H11 C10 H12 108.618
H11 C10 C13 109.785 H12 C10 C13 109.723
H14 C13 H15 107.665 H14 C13 H16 108.106
H15 C13 H16 108.924
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.632      
2 H 0.265      
3 H 0.261      
4 C -0.571      
5 H 0.216      
6 H 0.189      
7 H 0.197      
8 C -0.120      
9 H 0.168      
10 C -0.366      
11 H 0.212      
12 H 0.190      
13 C -0.609      
14 H 0.205      
15 H 0.202      
16 H 0.194      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.100 0.383 1.247 1.308
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.645 0.495 0.846
y 0.495 -31.639 2.105
z 0.846 2.105 -35.436
Traceless
 xyz
x 0.892 0.495 0.846
y 0.495 2.402 2.105
z 0.846 2.105 -3.294
Polar
3z2-r2-6.588
x2-y2-1.007
xy0.495
xz0.846
yz2.105


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.278 0.055 0.013
y 0.055 7.358 -0.079
z 0.013 -0.079 6.267


<r2> (average value of r2) Å2
<r2> 151.743
(<r2>)1/2 12.318