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All results from a given calculation for NH2CH2OH (aminomethanol)

using model chemistry: PBE1PBE/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A
Energy calculated at PBE1PBE/3-21G*
 hartrees
Energy at 0K-169.929070
Energy at 298.15K-169.935589
HF Energy-169.929070
Nuclear repulsion energy81.061765
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 PBE1PBE/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 3606 3461 2.15      
2 A 3525 3383 1.69      
3 A 3497 3357 0.37      
4 A 3149 3022 28.79      
5 A 3046 2924 69.23      
6 A 1730 1660 28.39      
7 A 1548 1486 0.93      
8 A 1435 1378 21.09      
9 A 1414 1357 0.86      
10 A 1381 1326 6.86      
11 A 1178 1131 29.89      
12 A 1120 1075 40.60      
13 A 961 922 175.62      
14 A 903 866 6.63      
15 A 640 615 239.74      
16 A 452 434 68.49      
17 A 434 417 160.21      
18 A 323 310 98.48      

Unscaled Zero Point Vibrational Energy (zpe) 15170.5 cm-1
Scaled (by 0.9598) Zero Point Vibrational Energy (zpe) 14560.6 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 PBE1PBE/3-21G*
ABC
1.28761 0.30562 0.27659

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.229 -0.171 -0.026
C2 -0.021 0.533 0.052
O3 -1.241 -0.254 -0.112
H4 1.376 -0.669 -0.901
H5 1.467 -0.738 0.786
H6 -0.032 1.087 1.001
H7 -0.075 1.252 -0.767
H8 -1.280 -0.895 0.645

Atom - Atom Distances (Å)
  N1 C2 O3 H4 H5 H6 H7 H8
N11.43672.47261.01811.01822.05562.06772.6954
C21.43671.46132.07522.09021.09881.09151.9938
O32.47261.46132.76442.89372.12172.01450.9927
H41.01812.07522.76441.69082.94692.41133.0810
H51.01822.09022.89371.69082.37132.95822.7546
H62.05561.09882.12172.94692.37131.77682.3691
H72.06771.09152.01452.41132.95821.77682.8384
H82.69541.99380.99273.08102.75462.36912.8384

picture of aminomethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 O3 117.122 N1 C2 H6 107.589
N1 C2 H7 108.973 C2 N1 H4 114.341
C2 N1 H5 115.684 C2 O3 H8 107.120
O3 C2 H6 111.150 O3 C2 H7 103.252
H4 N1 H5 112.273 H6 C2 H7 108.428
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.732      
2 C -0.065      
3 O -0.570      
4 H 0.299      
5 H 0.287      
6 H 0.207      
7 H 0.245      
8 H 0.329      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.836 -1.342 1.351 2.080
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.770 -1.621 -1.970
y -1.621 -16.594 -1.379
z -1.970 -1.379 -16.263
Traceless
 xyz
x -6.341 -1.621 -1.970
y -1.621 2.923 -1.379
z -1.970 -1.379 3.419
Polar
3z2-r26.837
x2-y2-6.176
xy-1.621
xz-1.970
yz-1.379


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.067 -0.103 -0.075
y -0.103 2.728 -0.267
z -0.075 -0.267 2.965


<r2> (average value of r2) Å2
<r2> 50.692
(<r2>)1/2 7.120