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

using model chemistry: B3LYPultrafine/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-191.030782
Energy at 298.15K-191.035996
HF Energy-191.030782
Nuclear repulsion energy81.395692
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/cc-pVTZ
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 3797 3670 20.80      
2 A 3022 2921 62.98      
3 A 1531 1480 0.42      
4 A 1394 1348 3.56      
5 A 1208 1168 1.49      
6 A 1032 998 97.28      
7 A 560 541 64.74      
8 A 375 363 55.22      
9 B 3796 3669 36.77      
10 B 3066 2964 50.57      
11 B 1448 1400 56.13      
12 B 1374 1328 34.39      
13 B 1057 1022 261.16      
14 B 1011 978 8.56      
15 B 378 365 166.84      

Unscaled Zero Point Vibrational Energy (zpe) 12523.4 cm-1
Scaled (by 0.9667) Zero Point Vibrational Energy (zpe) 12106.4 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/cc-pVTZ
ABC
1.39981 0.33871 0.30030

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.529
O2 0.000 1.173 -0.247
O3 0.000 -1.173 -0.247
H4 -0.890 -0.074 1.158
H5 0.890 0.074 1.158
H6 -0.808 1.183 -0.772
H7 0.808 -1.183 -0.772

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.40671.40671.09231.09231.93521.9352
O21.40672.34632.07881.99360.96352.5453
O31.40672.34631.99362.07882.54530.9635
H41.09232.07881.99361.78642.30492.7996
H51.09231.99362.07881.78642.79962.3049
H61.93520.96352.54532.30492.79962.8642
H71.93522.54530.96352.79962.30492.8642

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 108.010 C1 O3 H7 108.010
O2 C1 O3 113.025 O2 C1 H4 111.967
O2 C1 H5 105.138 O3 C1 H4 105.138
O3 C1 H5 111.967 H4 C1 H5 109.713
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.177      
2 O -0.342      
3 O -0.342      
4 H 0.054      
5 H 0.054      
6 H 0.199      
7 H 0.199      


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 -15.778 -3.360 0.000
y -3.360 -22.223 0.000
z 0.000 0.000 -16.505
Traceless
 xyz
x 3.586 -3.360 0.000
y -3.360 -6.082 0.000
z 0.000 0.000 2.495
Polar
3z2-r24.991
x2-y26.445
xy-3.360
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.233 -0.172 0.000
y -0.172 3.489 0.000
z 0.000 0.000 3.349


<r2> (average value of r2) Å2
<r2> 45.597
(<r2>)1/2 6.753