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: mPW1PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-170.079600
Energy at 298.15K-170.086121
HF Energy-170.079600
Nuclear repulsion energy81.072800
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 mPW1PW91/3-21G*
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 3615 3433 2.33      
2 A 3536 3358 1.46      
3 A 3507 3330 0.40      
4 A 3156 2997 29.49      
5 A 3054 2900 69.96      
6 A 1734 1647 28.54      
7 A 1554 1476 0.91      
8 A 1440 1368 20.86      
9 A 1417 1346 0.89      
10 A 1383 1313 7.31      
11 A 1180 1120 29.09      
12 A 1117 1061 42.41      
13 A 959 910 177.65      
14 A 905 859 6.50      
15 A 640 608 242.43      
16 A 453 430 65.84      
17 A 434 412 159.17      
18 A 322 306 100.83      

Unscaled Zero Point Vibrational Energy (zpe) 15202.9 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 14436.7 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 mPW1PW91/3-21G*
ABC
1.28967 0.30537 0.27642

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.229 -0.172 -0.026
C2 -0.021 0.533 0.052
O3 -1.242 -0.254 -0.112
H4 1.379 -0.667 -0.901
H5 1.470 -0.736 0.785
H6 -0.032 1.085 1.000
H7 -0.075 1.251 -0.766
H8 -1.283 -0.894 0.644

Atom - Atom Distances (Å)
  N1 C2 O3 H4 H5 H6 H7 H8
N11.43672.47331.01681.01692.05452.06672.6982
C21.43671.46192.07542.09051.09721.09001.9952
O32.47331.46192.76742.89652.12022.01400.9913
H41.01682.07542.76741.68982.94512.41033.0859
H51.01692.09052.89651.68982.37012.95642.7613
H62.05451.09722.12022.94512.37011.77482.3687
H72.06671.09002.01402.41032.95641.77482.8375
H82.69821.99520.99133.08592.76132.36872.8375

picture of aminomethanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 O3 117.129 N1 C2 H6 107.589
N1 C2 H7 108.981 C2 N1 H4 114.452
C2 N1 H5 115.803 C2 O3 H8 107.278
O3 C2 H6 111.090 O3 C2 H7 103.255
H4 N1 H5 112.387 H6 C2 H7 108.477
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.732      
2 C -0.061      
3 O -0.573      
4 H 0.299      
5 H 0.287      
6 H 0.206      
7 H 0.244      
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
  0.848 -1.330 1.359 2.083
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.699 -1.614 -1.982
y -1.614 -16.551 -1.379
z -1.982 -1.379 -16.213
Traceless
 xyz
x -6.318 -1.614 -1.982
y -1.614 2.905 -1.379
z -1.982 -1.379 3.412
Polar
3z2-r26.825
x2-y2-6.149
xy-1.614
xz-1.982
yz-1.379


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.056 -0.101 -0.074
y -0.101 2.706 -0.263
z -0.074 -0.263 2.947


<r2> (average value of r2) Å2
<r2> 50.675
(<r2>)1/2 7.119