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

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-190.917962
Energy at 298.15K-190.923293
HF Energy-190.917962
Nuclear repulsion energy81.675057
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 B3PW91/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3796 3654 9.97      
2 A 3040 2927 75.43      
3 A 1538 1480 0.44      
4 A 1416 1363 5.39      
5 A 1224 1178 2.41      
6 A 1062 1022 113.41      
7 A 590 568 111.81      
8 A 419 404 40.02      
9 B 3795 3654 16.67      
10 B 3089 2974 65.20      
11 B 1472 1417 78.89      
12 B 1390 1338 26.45      
13 B 1094 1053 262.57      
14 B 1025 987 8.55      
15 B 429 413 220.84      

Unscaled Zero Point Vibrational Energy (zpe) 12689.2 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 12215.9 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 B3PW91/6-311G*
ABC
1.40193 0.34241 0.30319

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.528
O2 0.000 1.167 -0.245
O3 0.000 -1.167 -0.245
H4 -0.892 -0.080 1.159
H5 0.892 0.080 1.159
H6 -0.801 1.165 -0.780
H7 0.801 -1.165 -0.780

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.40031.40031.09551.09551.92641.9264
O21.40032.33462.07931.98760.96342.5232
O31.40032.33461.98762.07932.52320.9634
H41.09552.07931.98761.79102.30632.7939
H51.09551.98762.07931.79102.79392.3063
H61.92640.96342.52322.30632.79392.8274
H71.92642.52320.96342.79392.30632.8274

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 107.734 C1 O3 H7 107.734
O2 C1 O3 112.942 O2 C1 H4 112.266
O2 C1 H5 104.918 O3 C1 H4 104.918
O3 C1 H5 112.266 H4 C1 H5 109.656
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.054      
2 O -0.556      
3 O -0.556      
4 H 0.201      
5 H 0.201      
6 H 0.382      
7 H 0.382      


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 -0.339 0.339
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.500 -3.656 0.000
y -3.656 -22.528 0.000
z 0.000 0.000 -16.136
Traceless
 xyz
x 3.832 -3.656 0.000
y -3.656 -6.710 0.000
z 0.000 0.000 2.878
Polar
3z2-r25.756
x2-y27.028
xy-3.656
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.846 -0.167 0.000
y -0.167 2.938 0.000
z 0.000 0.000 2.924


<r2> (average value of r2) Å2
<r2> 45.220
(<r2>)1/2 6.725