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 CH2OH (Hydroxymethyl radical)

using model chemistry: B3LYP/aug-cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A
Energy calculated at B3LYP/aug-cc-pVQZ
 hartrees
Energy at 0K-115.122756
Energy at 298.15K-115.125191
HF Energy-115.122756
Nuclear repulsion energy35.349354
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/aug-cc-pVQZ
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 3831 3712 63.00      
2 A 3276 3174 8.80      
3 A 3135 3037 18.05      
4 A 1484 1438 8.37      
5 A 1357 1315 28.70      
6 A 1200 1162 108.77      
7 A 1054 1021 47.66      
8 A 518 502 125.66      
9 A 408 396 20.97      

Unscaled Zero Point Vibrational Energy (zpe) 8131.6 cm-1
Scaled (by 0.9689) Zero Point Vibrational Energy (zpe) 7878.7 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 B3LYP/aug-cc-pVQZ
ABC
6.50145 1.00016 0.87294

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVQZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.684 0.028 -0.056
O2 -0.669 -0.126 0.019
H3 1.236 -0.885 0.091
H4 1.116 0.996 0.146
H5 -1.103 0.729 -0.051

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5
C11.36351.07661.08001.9191
O21.36352.05222.11200.9606
H31.07662.05221.88572.8449
H41.08002.11201.88572.2432
H51.91910.96062.84492.2432

picture of Hydroxymethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H5 110.116 O2 C1 H3 113.977
O2 C1 H4 119.161 H3 C1 H4 121.946
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.433      
2 O -0.580      
3 H 0.363      
4 H 0.321      
5 H 0.329      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.083 1.448 0.227 1.468
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.012 -2.141 0.580
y -2.141 -11.233 -0.014
z 0.580 -0.014 -14.636
Traceless
 xyz
x 0.922 -2.141 0.580
y -2.141 2.091 -0.014
z 0.580 -0.014 -3.013
Polar
3z2-r2-6.027
x2-y2-0.779
xy-2.141
xz0.580
yz-0.014


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.677 -0.062 -0.032
y -0.062 3.031 -0.011
z -0.032 -0.011 3.054


<r2> (average value of r2) Å2
<r2> 20.753
(<r2>)1/2 4.556