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: HF/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A
Energy calculated at HF/CEP-31G
 hartrees
Energy at 0K-33.691402
Energy at 298.15K-33.697836
HF Energy-33.691402
Nuclear repulsion energy49.182710
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 HF/CEP-31G
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 4069 3668 15.15      
2 A 3973 3581 11.19      
3 A 3832 3454 5.31      
4 A 3377 3044 59.41      
5 A 3277 2954 109.62      
6 A 1829 1649 61.02      
7 A 1647 1485 0.18      
8 A 1547 1395 43.09      
9 A 1481 1335 1.05      
10 A 1432 1291 22.97      
11 A 1242 1120 135.20      
12 A 1169 1054 22.14      
13 A 1057 953 269.17      
14 A 959 865 2.02      
15 A 617 556 283.69      
16 A 466 420 148.16      
17 A 389 350 114.27      
18 A 248 224 217.67      

Unscaled Zero Point Vibrational Energy (zpe) 16306.0 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 14698.2 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 HF/CEP-31G
ABC
1.28894 0.30958 0.27873

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.210 -0.189 -0.022
C2 -0.026 0.544 0.044
O3 -1.227 -0.260 -0.103
H4 1.442 -0.637 -0.884
H5 1.551 -0.641 0.801
H6 -0.064 1.085 0.986
H7 -0.087 1.244 -0.778
H8 -1.339 -0.913 0.588

Atom - Atom Distances (Å)
  N1 C2 O3 H4 H5 H6 H7 H8
N11.43892.43970.99890.99872.06502.07592.7192
C21.43891.45312.10012.11331.08741.08102.0358
O32.43971.45312.80662.94652.08522.00460.9573
H40.99892.10012.80661.68882.95502.42643.1588
H50.99872.11332.94651.68882.37142.95492.9109
H62.06501.08742.08522.95502.37141.77152.4034
H72.07591.08102.00462.42642.95491.77152.8438
H82.71922.03580.95733.15882.91092.40342.8438

picture of aminomethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 O3 115.048 N1 C2 H6 108.859
N1 C2 H7 110.129 C2 N1 H4 117.841
C2 N1 H5 119.112 C2 O3 H8 113.666
O3 C2 H6 109.487 O3 C2 H7 103.593
H4 N1 H5 115.436 H6 C2 H7 109.559
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.609      
2 C -0.116      
3 O -0.549      
4 H 0.309      
5 H 0.295      
6 H 0.141      
7 H 0.175      
8 H 0.354      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.330 -1.033 1.714 2.403
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.611 -1.593 -2.401
y -1.593 -17.167 -1.466
z -2.401 -1.466 -16.459
Traceless
 xyz
x -6.798 -1.593 -2.401
y -1.593 2.869 -1.466
z -2.401 -1.466 3.930
Polar
3z2-r27.859
x2-y2-6.444
xy-1.593
xz-2.401
yz-1.466


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.055 -0.045 -0.013
y -0.045 2.715 -0.207
z -0.013 -0.207 2.893


<r2> (average value of r2) Å2
<r2> 44.134
(<r2>)1/2 6.643