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

using model chemistry: HF/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HF/6-31+G**
 hartrees
Energy at 0K-189.925966
Energy at 298.15K-189.931332
HF Energy-189.925966
Nuclear repulsion energy82.574816
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 HF/6-31+G**
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 4170 3770 49.88      
2 A 3227 2918 72.42      
3 A 1674 1513 2.29      
4 A 1501 1357 4.74      
5 A 1294 1170 0.59      
6 A 1159 1048 139.57      
7 A 611 553 100.34      
8 A 431 389 74.17      
9 B 4168 3769 84.66      
10 B 3279 2965 63.58      
11 B 1588 1436 93.83      
12 B 1477 1336 56.31      
13 B 1216 1100 288.78      
14 B 1085 981 23.55      
15 B 386 349 221.54      

Unscaled Zero Point Vibrational Energy (zpe) 13633.8 cm-1
Scaled (by 0.9042) Zero Point Vibrational Energy (zpe) 12327.7 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 HF/6-31+G**
ABC
1.42276 0.35081 0.30962

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.527
O2 0.000 1.152 -0.245
O3 0.000 -1.152 -0.245
H4 -0.883 -0.062 1.150
H5 0.883 0.062 1.150
H6 -0.780 1.183 -0.776
H7 0.780 -1.183 -0.776

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.38641.38641.08271.08271.92541.9254
O21.38642.30322.04901.97820.94462.5184
O31.38642.30321.97822.04902.51840.9446
H41.08272.04901.97821.77112.29572.7812
H51.08271.97822.04901.77112.78122.2957
H61.92540.94462.51842.29572.78122.8348
H71.92542.51840.94462.78122.29572.8348

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 109.932 C1 O3 H7 109.932
O2 C1 O3 112.327 O2 C1 H4 111.579
O2 C1 H5 105.836 O3 C1 H4 105.836
O3 C1 H5 111.579 H4 C1 H5 109.762
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.294      
2 O -0.624      
3 O -0.624      
4 H 0.111      
5 H 0.111      
6 H 0.366      
7 H 0.366      


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 -0.105 0.105
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.695 -3.904 0.000
y -3.904 -23.077 0.000
z 0.000 0.000 -16.234
Traceless
 xyz
x 3.960 -3.904 0.000
y -3.904 -7.113 0.000
z 0.000 0.000 3.152
Polar
3z2-r26.304
x2-y27.382
xy-3.904
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.874 -0.098 0.000
y -0.098 3.016 0.000
z 0.000 0.000 2.994


<r2> (average value of r2) Å2
<r2> 44.733
(<r2>)1/2 6.688