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: MP4/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A
Energy calculated at MP4/6-311G*
 hartrees
Energy at 0K-114.777330
Energy at 298.15K-114.779954
HF Energy-114.436413
Nuclear repulsion energy35.197770
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 MP4/6-311G*
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 3833 3676        
2 A 3267 3133        
3 A 3116 2988        
4 A 1512 1450        
5 A 1405 1348        
6 A 1214 1164        
7 A 1090 1045        
8 A 730 700        
9 A 482 462        

Unscaled Zero Point Vibrational Energy (zpe) 8324.0 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 7982.7 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 MP4/6-311G*
ABC
6.34667 0.99140 0.86995

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.687 0.029 -0.079
O2 0.672 -0.124 0.029
H3 -1.223 -0.893 0.118
H4 -1.124 0.982 0.216
H5 1.090 0.733 -0.088

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5
C11.37161.08431.08981.9112
O21.37162.04682.11770.9610
H31.08432.04681.88062.8347
H41.08982.11771.88062.2482
H51.91120.96102.83472.2482

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 108.758 O2 C1 H3 112.374
O2 C1 H4 118.260 H3 C1 H4 119.761
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability