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

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/6-31G*
 hartrees
Energy at 0K-190.936437
Energy at 298.15K-190.941718
HF Energy-190.936437
Nuclear repulsion energy81.309897
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 B3LYPultrafine/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 3726 3569 11.21      
2 A 3041 2913 70.23      
3 A 1556 1491 1.69      
4 A 1416 1356 3.81      
5 A 1221 1169 1.30      
6 A 1049 1005 106.58      
7 A 576 552 93.45      
8 A 405 388 36.36      
9 B 3725 3569 19.06      
10 B 3087 2958 67.53      
11 B 1473 1411 84.24      
12 B 1391 1333 27.35      
13 B 1089 1044 240.32      
14 B 1023 980 10.72      
15 B 415 398 198.53      

Unscaled Zero Point Vibrational Energy (zpe) 12596.3 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 12067.3 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 B3LYPultrafine/6-31G*
ABC
1.38794 0.33976 0.30057

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.531
O2 0.000 1.173 -0.246
O3 0.000 -1.173 -0.246
H4 -0.892 -0.081 1.165
H5 0.892 0.081 1.165
H6 -0.803 1.151 -0.792
H7 0.803 -1.151 -0.792

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.40721.40721.09751.09751.92861.9286
O21.40722.34642.08791.99500.97152.5186
O31.40722.34641.99502.08792.51860.9715
H41.09752.08791.99501.79182.31382.8015
H51.09751.99502.08791.79182.80152.3138
H61.92860.97152.51862.31382.80152.8064
H71.92862.51860.97152.80152.31382.8064

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 106.919 C1 O3 H7 106.919
O2 C1 O3 112.964 O2 C1 H4 112.352
O2 C1 H5 104.926 O3 C1 H4 104.926
O3 C1 H5 112.352 H4 C1 H5 109.442
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.137      
2 O -0.598      
3 O -0.598      
4 H 0.139      
5 H 0.139      
6 H 0.390      
7 H 0.390      


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 -0.348 0.348
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.571 -3.351 0.000
y -3.351 -22.138 0.000
z 0.000 0.000 -16.053
Traceless
 xyz
x 3.525 -3.351 0.000
y -3.351 -6.326 0.000
z 0.000 0.000 2.801
Polar
3z2-r25.603
x2-y26.567
xy-3.351
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.808 -0.153 0.000
y -0.153 2.806 0.000
z 0.000 0.000 2.839


<r2> (average value of r2) Å2
<r2> 45.387
(<r2>)1/2 6.737