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

using model chemistry: PBE1PBE/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at PBE1PBE/STO-3G
 hartrees
Energy at 0K-188.167384
Energy at 298.15K-188.172450
HF Energy-188.167384
Nuclear repulsion energy78.961803
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 PBE1PBE/STO-3G
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 3794 3347 11.44      
2 A 3272 2886 21.59      
3 A 1654 1459 0.36      
4 A 1584 1397 2.40      
5 A 1275 1124 0.33      
6 A 1083 955 26.62      
7 A 528 466 68.59      
8 A 394 348 21.34      
9 B 3797 3349 45.39      
10 B 3380 2982 7.87      
11 B 1608 1418 40.76      
12 B 1486 1311 17.74      
13 B 1169 1031 53.87      
14 B 1034 912 12.68      
15 B 394 348 108.56      

Unscaled Zero Point Vibrational Energy (zpe) 13226.5 cm-1
Scaled (by 0.8821) Zero Point Vibrational Energy (zpe) 11667.1 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 PBE1PBE/STO-3G
ABC
1.31383 0.32015 0.28433

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/STO-3G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.544
O2 0.000 1.212 -0.256
O3 0.000 -1.212 -0.256
H4 -0.901 -0.087 1.196
H5 0.901 0.087 1.196
H6 -0.871 1.113 -0.778
H7 0.871 -1.113 -0.778

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.45181.45181.11631.11631.93521.9352
O21.45182.42352.14662.04621.02052.5373
O31.45182.42352.04622.14662.53731.0205
H41.11632.14662.04621.81132.31052.8449
H51.11632.04622.14661.81132.84492.3105
H61.93521.02052.53732.31052.84492.8278
H71.93522.53731.02052.84492.31052.8278

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 101.606 C1 O3 H7 101.606
O2 C1 O3 113.161 O2 C1 H4 112.767
O2 C1 H5 104.893 O3 C1 H4 104.893
O3 C1 H5 112.767 H4 C1 H5 108.447
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.012      
2 O -0.256      
3 O -0.256      
4 H 0.074      
5 H 0.074      
6 H 0.176      
7 H 0.176      


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 -0.191 0.191
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.458 -2.396 0.000
y -2.396 -20.058 0.000
z 0.000 0.000 -15.219
Traceless
 xyz
x 3.181 -2.396 0.000
y -2.396 -5.220 0.000
z 0.000 0.000 2.039
Polar
3z2-r24.078
x2-y25.600
xy-2.396
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.672 -0.184 0.000
y -0.184 1.608 0.000
z 0.000 0.000 1.578


<r2> (average value of r2) Å2
<r2> 46.380
(<r2>)1/2 6.810