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

using model chemistry: B3PW91/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3PW91/TZVP
 hartrees
Energy at 0K-190.954654
Energy at 298.15K-190.959938
HF Energy-190.954654
Nuclear repulsion energy81.562962
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 B3PW91/TZVP
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 3825 3689 22.73      
2 A 3038 2930 64.33      
3 A 1522 1468 0.49      
4 A 1394 1345 3.31      
5 A 1210 1167 1.56      
6 A 1045 1008 106.80      
7 A 576 555 88.82      
8 A 405 391 51.73      
9 B 3825 3688 39.80      
10 B 3087 2977 46.80      
11 B 1457 1405 61.57      
12 B 1369 1320 25.29      
13 B 1072 1034 268.04      
14 B 1018 981 10.91      
15 B 405 391 195.13      

Unscaled Zero Point Vibrational Energy (zpe) 12624.5 cm-1
Scaled (by 0.9643) Zero Point Vibrational Energy (zpe) 12173.8 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 B3PW91/TZVP
ABC
1.40195 0.34079 0.30205

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/TZVP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.528
O2 0.000 1.169 -0.246
O3 0.000 -1.169 -0.246
H4 -0.891 -0.075 1.159
H5 0.891 0.075 1.159
H6 -0.807 1.177 -0.773
H7 0.807 -1.177 -0.773

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.40261.40261.09441.09441.93111.9311
O21.40262.33892.07781.99130.96342.5365
O31.40262.33891.99132.07782.53650.9634
H41.09442.07781.99131.78892.30382.7979
H51.09441.99132.07781.78892.79792.3038
H61.93110.96342.53652.30382.79792.8536
H71.93112.53650.96342.79792.30382.8536

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 107.969 C1 O3 H7 107.969
O2 C1 O3 112.983 O2 C1 H4 112.052
O2 C1 H5 105.112 O3 C1 H4 105.112
O3 C1 H5 112.052 H4 C1 H5 109.637
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.009      
2 O -0.382      
3 O -0.382      
4 H 0.111      
5 H 0.111      
6 H 0.267      
7 H 0.267      


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 -0.185 0.185
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.702 -3.679 0.000
y -3.679 -22.703 0.000
z 0.000 0.000 -16.433
Traceless
 xyz
x 3.866 -3.679 0.000
y -3.679 -6.635 0.000
z 0.000 0.000 2.770
Polar
3z2-r25.539
x2-y27.001
xy-3.679
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.129 -0.143 0.000
y -0.143 3.347 0.000
z 0.000 0.000 3.247


<r2> (average value of r2) Å2
<r2> 45.495
(<r2>)1/2 6.745