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: HSEh1PBE/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A
Energy calculated at HSEh1PBE/3-21G*
 hartrees
Energy at 0K-114.293548
Energy at 298.15K-114.296031
HF Energy-114.293548
Nuclear repulsion energy34.695718
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 HSEh1PBE/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 3573 3430 13.42      
2 A 3303 3171 21.78      
3 A 3147 3021 16.74      
4 A 1518 1457 3.47      
5 A 1380 1325 32.19      
6 A 1169 1122 59.40      
7 A 1054 1012 73.41      
8 A 583 560 135.82      
9 A 421 405 82.93      

Unscaled Zero Point Vibrational Energy (zpe) 8074.7 cm-1
Scaled (by 0.9599) Zero Point Vibrational Energy (zpe) 7750.9 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 HSEh1PBE/3-21G*
ABC
6.37502 0.95775 0.84132

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.699 0.030 -0.065
O2 -0.683 -0.126 0.028
H3 1.235 -0.897 0.076
H4 1.163 0.979 0.189
H5 -1.130 0.746 -0.102

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5
C11.39311.08051.08651.9638
O21.39312.06772.15710.9885
H31.08052.06771.88062.8852
H41.08652.15711.88062.3229
H51.96380.98852.88522.3229

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 109.924 O2 C1 H3 112.810
O2 C1 H4 120.401 H3 C1 H4 120.416
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.230      
2 O -0.540      
3 H 0.213      
4 H 0.182      
5 H 0.374      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.046 1.704 0.167 1.713
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.152 -2.317 0.771
y -2.317 -10.781 -0.047
z 0.771 -0.047 -13.813
Traceless
 xyz
x 1.145 -2.317 0.771
y -2.317 1.701 -0.047
z 0.771 -0.047 -2.847
Polar
3z2-r2-5.693
x2-y2-0.371
xy-2.317
xz0.771
yz-0.047


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.602 -0.207 0.041
y -0.207 2.047 -0.005
z 0.041 -0.005 0.797


<r2> (average value of r2) Å2
<r2> 20.788
(<r2>)1/2 4.559