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All results from a given calculation for CH2(OH)2 (methanediol)

using model chemistry: HSEh1PBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HSEh1PBE/6-31G*
 hartrees
Energy at 0K-190.744685
Energy at 298.15K-190.749990
HF Energy-190.744685
Nuclear repulsion energy81.748582
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/6-31G*
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 3789 3603 16.12      
2 A 3060 2910 70.44      
3 A 1559 1482 1.26      
4 A 1423 1353 3.91      
5 A 1230 1170 0.48      
6 A 1077 1024 110.33      
7 A 585 556 97.51      
8 A 409 389 39.71      
9 B 3788 3603 27.97      
10 B 3110 2958 66.49      
11 B 1477 1405 89.48      
12 B 1398 1330 25.21      
13 B 1131 1075 231.94      
14 B 1027 977 21.20      
15 B 419 399 204.82      

Unscaled Zero Point Vibrational Energy (zpe) 12740.9 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 12116.6 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/6-31G*
ABC
1.39985 0.34405 0.30439

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.527
O2 0.000 1.165 -0.245
O3 0.000 -1.165 -0.245
H4 -0.891 -0.080 1.163
H5 0.891 0.080 1.163
H6 -0.802 1.144 -0.786
H7 0.802 -1.144 -0.786

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.39801.39801.09751.09751.91741.9174
O21.39802.33092.08021.98850.96782.5038
O31.39802.33091.98852.08022.50380.9678
H41.09752.08021.98851.78912.30332.7923
H51.09751.98852.08021.78912.79232.3033
H61.91740.96782.50382.30332.79232.7940
H71.91742.50380.96782.79232.30332.7940

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 106.873 C1 O3 H7 106.873
O2 C1 O3 112.958 O2 C1 H4 112.378
O2 C1 H5 105.021 O3 C1 H4 105.021
O3 C1 H5 112.378 H4 C1 H5 109.190
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.090      
2 O -0.613      
3 O -0.613      
4 H 0.161      
5 H 0.161      
6 H 0.406      
7 H 0.406      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.364 0.364
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.484 -3.389 0.000
y -3.389 -22.109 0.000
z 0.000 0.000 -16.006
Traceless
 xyz
x 3.574 -3.389 0.000
y -3.389 -6.364 0.000
z 0.000 0.000 2.790
Polar
3z2-r25.580
x2-y26.625
xy-3.389
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.782 -0.135 0.000
y -0.135 2.760 0.000
z 0.000 0.000 2.808


<r2> (average value of r2) Å2
<r2> 44.963
(<r2>)1/2 6.705