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 NH2CH2OH (aminomethanol)

using model chemistry: B3LYP/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 B3LYP/3-21G*
 hartrees
Energy at 0K-170.120968
Energy at 298.15K-170.127474
HF Energy-170.120968
Nuclear repulsion energy80.693968
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/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 3539 3405 0.22      
2 A 3442 3311 4.96      
3 A 3438 3307 1.17      
4 A 3129 3010 29.95      
5 A 3028 2913 72.32      
6 A 1728 1662 22.54      
7 A 1549 1490 0.49      
8 A 1433 1379 23.58      
9 A 1409 1355 0.83      
10 A 1376 1324 5.45      
11 A 1170 1125 22.09      
12 A 1090 1049 40.74      
13 A 928 893 173.28      
14 A 901 867 4.12      
15 A 650 625 235.39      
16 A 448 431 54.85      
17 A 430 414 161.74      
18 A 324 311 81.84      

Unscaled Zero Point Vibrational Energy (zpe) 15005.6 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 14435.4 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/3-21G*
ABC
1.27543 0.30265 0.27366

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.237 -0.171 -0.026
C2 -0.019 0.538 0.052
O3 -1.248 -0.255 -0.112
H4 1.367 -0.684 -0.899
H5 1.459 -0.750 0.786
H6 -0.029 1.091 1.001
H7 -0.074 1.253 -0.770
H8 -1.283 -0.898 0.650

Atom - Atom Distances (Å)
  N1 C2 O3 H4 H5 H6 H7 H8
N11.44512.48811.02081.02112.06192.07382.7090
C21.44511.47162.07842.09301.09791.09062.0039
O32.48811.47162.76392.89452.12982.02050.9976
H41.02082.07842.76391.68872.95112.41743.0771
H51.02112.09302.89451.68872.37642.96292.7496
H62.06191.09792.12982.95112.37641.77862.3769
H72.07381.09062.02052.41742.96291.77862.8461
H82.70902.00390.99763.07712.74962.37692.8461

picture of aminomethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 O3 117.094 N1 C2 H6 107.568
N1 C2 H7 108.934 C2 N1 H4 113.779
C2 N1 H5 115.056 C2 O3 H8 106.929
O3 C2 H6 111.132 O3 C2 H7 103.097
H4 N1 H5 111.592 H6 C2 H7 108.718
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.680      
2 C -0.026      
3 O -0.548      
4 H 0.277      
5 H 0.265      
6 H 0.182      
7 H 0.219      
8 H 0.311      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.781 -1.320 1.313 2.019
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.874 -1.590 -1.904
y -1.590 -16.630 -1.333
z -1.904 -1.333 -16.384
Traceless
 xyz
x -6.367 -1.590 -1.904
y -1.590 2.999 -1.333
z -1.904 -1.333 3.369
Polar
3z2-r26.737
x2-y2-6.244
xy-1.590
xz-1.904
yz-1.333


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.134 -0.096 -0.085
y -0.096 2.785 -0.278
z -0.085 -0.278 3.012


<r2> (average value of r2) Å2
<r2> 51.084
(<r2>)1/2 7.147