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: B1B95/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A
Energy calculated at B1B95/6-311G*
 hartrees
Energy at 0K-115.041073
Energy at 298.15K-115.043601
HF Energy-115.041073
Nuclear repulsion energy35.435455
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 B1B95/6-311G*
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 3882 3721 56.44      
2 A 3274 3138 19.30      
3 A 3127 2998 23.26      
4 A 1489 1427 8.65      
5 A 1365 1308 27.08      
6 A 1238 1187 99.43      
7 A 1061 1017 47.76      
8 A 601 576 98.51      
9 A 451 432 64.04      

Unscaled Zero Point Vibrational Energy (zpe) 8243.1 cm-1
Scaled (by 0.9586) Zero Point Vibrational Energy (zpe) 7901.9 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 B1B95/6-311G*
ABC
6.43804 1.00788 0.88071

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.680 0.028 -0.068
O2 -0.667 -0.125 0.024
H3 1.226 -0.887 0.106
H4 1.117 0.988 0.181
H5 -1.085 0.733 -0.068

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5
C11.35871.07971.08421.9008
O21.35872.04262.10870.9588
H31.07972.04261.88002.8281
H41.08422.10871.88002.2309
H51.90080.95882.82812.2309

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 108.987 O2 C1 H3 113.302
O2 C1 H4 118.930 H3 C1 H4 120.641
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.177      
2 O -0.305      
3 H 0.123      
4 H 0.103      
5 H 0.256      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.080 1.531 0.245 1.552
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.476 -2.128 0.668
y -2.128 -10.889 -0.031
z 0.668 -0.031 -14.028
Traceless
 xyz
x 0.983 -2.128 0.668
y -2.128 1.863 -0.031
z 0.668 -0.031 -2.846
Polar
3z2-r2-5.692
x2-y2-0.587
xy-2.128
xz0.668
yz-0.031


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.814 -0.127 0.044
y -0.127 2.348 0.006
z 0.044 0.006 1.605


<r2> (average value of r2) Å2
<r2> 20.351
(<r2>)1/2 4.511