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: mPW1PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at mPW1PW91/6-311G**
 hartrees
Energy at 0K-213.810353
Energy at 298.15K-213.823034
Nuclear repulsion energy194.505387
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 mPW1PW91/6-311G**
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 3612 3456 0.04      
2 A 3534 3381 1.00      
3 A 3135 2999 37.22      
4 A 3125 2989 39.23      
5 A 3118 2983 56.70      
6 A 3118 2983 19.81      
7 A 3086 2952 8.38      
8 A 3048 2916 38.42      
9 A 3045 2913 25.69      
10 A 3043 2912 20.60      
11 A 2932 2805 76.00      
12 A 1663 1591 44.41      
13 A 1512 1447 9.74      
14 A 1502 1437 3.26      
15 A 1500 1435 7.39      
16 A 1492 1427 4.85      
17 A 1476 1412 1.20      
18 A 1429 1367 6.21      
19 A 1408 1347 13.24      
20 A 1406 1345 9.65      
21 A 1387 1327 9.73      
22 A 1336 1278 1.51      
23 A 1304 1247 1.28      
24 A 1264 1209 0.49      
25 A 1203 1151 2.41      
26 A 1168 1118 10.59      
27 A 1078 1032 1.27      
28 A 1040 995 3.29      
29 A 1021 976 5.42      
30 A 985 943 3.68      
31 A 952 911 8.81      
32 A 869 831 111.24      
33 A 820 784 6.02      
34 A 773 739 2.00      
35 A 480 459 7.01      
36 A 455 435 6.24      
37 A 373 357 1.41      
38 A 288 276 32.74      
39 A 254 243 0.44      
40 A 231 221 4.48      
41 A 220 211 15.28      
42 A 102 98 2.01      

Unscaled Zero Point Vibrational Energy (zpe) 32893.0 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 31468.8 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 mPW1PW91/6-311G**
ABC
0.26335 0.11461 0.08805

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.563 1.373 -0.235
H2 -0.217 1.933 0.088
H3 1.400 1.836 0.099
C4 1.771 -0.715 -0.010
H5 1.910 -0.749 -1.093
H6 2.641 -0.215 0.426
H7 1.748 -1.737 0.374
C8 0.486 0.025 0.328
H9 0.379 0.037 1.428
C10 -0.730 -0.702 -0.242
H11 -0.609 -0.765 -1.328
H12 -0.727 -1.727 0.142
C13 -2.064 -0.043 0.089
H14 -2.900 -0.644 -0.275
H15 -2.152 0.942 -0.378
H16 -2.191 0.080 1.169

Atom - Atom Distances (Å)
  N1 H2 H3 C4 H5 H6 H7 C8 H9 C10 H11 H12 C13 H14 H15 H16
N11.01271.01332.42302.65622.69773.38391.46242.14052.44452.67183.37883.00084.00712.75243.3501
H21.01271.62033.31293.62123.59114.17342.04732.39692.70453.07233.69612.70443.73752.22372.9153
H31.01331.62032.57972.89122.41893.60042.04092.45843.33053.58244.14973.94034.97763.69394.1382
C42.42303.31292.57971.09271.09381.09221.52112.13782.51212.72112.69963.89434.67904.27434.2092
H52.65623.62122.89121.09271.76851.77612.15573.05242.77452.52973.07204.20524.88014.45744.7560
H62.69773.59112.41891.09381.76851.76562.17032.48633.47093.73363.70264.71955.60124.99554.8972
H73.38394.17343.60041.09221.77611.76562.16862.47702.75583.06542.48604.18124.81884.79094.4103
C81.46242.04732.04091.52112.15572.17032.16861.10511.52732.13692.13952.56173.50362.88042.8063
H92.14052.39692.45842.13783.05242.48632.47701.10512.13663.03582.44732.78683.75683.23822.5834
C102.44452.70453.33052.51212.77453.47092.75581.52732.13661.09501.09511.52352.17062.17702.1757
H112.67183.07233.58242.72112.52973.73363.06542.13693.03581.09501.76152.15542.52482.48923.0744
H123.37883.69614.14972.69963.07203.70262.48602.13952.44731.09511.76152.15092.46353.06962.5418
C133.00082.70443.94033.89434.20524.71954.18122.56172.78681.52352.15542.15091.09211.09281.0944
H144.00713.73754.97764.67904.88015.60124.81883.50363.75682.17062.52482.46351.09211.75581.7632
H152.75242.22373.69394.27434.45744.99554.79092.88043.23822.17702.48923.06961.09281.75581.7711
H163.35012.91534.13824.20924.75604.89724.41032.80632.58342.17573.07442.54181.09441.76321.7711

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 108.596 N1 C8 H9 112.217
N1 C8 C10 109.678 H2 N1 H3 106.211
H2 N1 C8 110.293 H3 N1 C8 109.718
C4 C8 H9 107.938 C4 C8 C10 110.988
H5 C4 H6 107.958 H5 C4 H7 108.758
H5 C4 C8 110.042 H6 C4 H7 107.737
H6 C4 C8 111.141 H7 C4 C8 111.102
C8 C10 H11 108.016 C8 C10 H12 108.206
C8 C10 C13 114.208 H9 C8 C10 107.428
C10 C13 H14 111.101 C10 C13 H15 111.572
C10 C13 H16 111.370 H11 C10 H12 107.083
H11 C10 C13 109.720 H12 C10 C13 109.357
H14 C13 H15 106.949 H14 C13 H16 107.498
H15 C13 H16 108.142
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.456      
2 H 0.195      
3 H 0.194      
4 C -0.303      
5 H 0.127      
6 H 0.112      
7 H 0.116      
8 C -0.131      
9 H 0.110      
10 C -0.225      
11 H 0.128      
12 H 0.118      
13 C -0.348      
14 H 0.126      
15 H 0.121      
16 H 0.115      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.203 1.219 1.236
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.144 0.463 0.999
y 0.463 -32.244 1.970
z 0.999 1.970 -35.566
Traceless
 xyz
x 0.761 0.463 0.999
y 0.463 2.111 1.970
z 0.999 1.970 -2.872
Polar
3z2-r2-5.743
x2-y2-0.900
xy0.463
xz0.999
yz1.970


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.220 -0.048 0.021
y -0.048 8.128 0.029
z 0.021 0.029 7.249


<r2> (average value of r2) Å2
<r2> 150.000
(<r2>)1/2 12.247