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

using model chemistry: B1B95/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B1B95/6-311G**
 hartrees
Energy at 0K-190.928898
Energy at 298.15K-190.934191
HF Energy-190.928898
Nuclear repulsion energy81.968934
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 B1B95/6-311G**
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 3871 3716 23.13      
2 A 3047 2926 71.18      
3 A 1534 1473 0.75      
4 A 1407 1351 3.57      
5 A 1220 1172 0.64      
6 A 1069 1027 111.02      
7 A 582 559 90.66      
8 A 400 384 41.25      
9 B 3870 3716 40.08      
10 B 3095 2972 60.19      
11 B 1464 1405 69.66      
12 B 1378 1323 26.99      
13 B 1114 1069 247.24      
14 B 1025 984 16.85      
15 B 403 387 194.85      

Unscaled Zero Point Vibrational Energy (zpe) 12740.0 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 12231.7 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 B1B95/6-311G**
ABC
1.40636 0.34555 0.30561

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.527
O2 0.000 1.163 -0.245
O3 0.000 -1.163 -0.245
H4 -0.889 -0.077 1.159
H5 0.889 0.077 1.159
H6 -0.797 1.150 -0.779
H7 0.797 -1.150 -0.779

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.39591.39591.09301.09301.91431.9143
O21.39592.32512.07331.98500.95942.5038
O31.39592.32511.98502.07332.50380.9594
H41.09302.07331.98501.78402.29552.7837
H51.09301.98502.07331.78402.78372.2955
H61.91430.95942.50382.29552.78372.7991
H71.91432.50380.95942.78372.29552.7991

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 107.281 C1 O3 H7 107.281
O2 C1 O3 112.777 O2 C1 H4 112.251
O2 C1 H5 105.138 O3 C1 H4 105.138
O3 C1 H5 112.251 H4 C1 H5 109.395
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.103      
2 O -0.397      
3 O -0.397      
4 H 0.109      
5 H 0.109      
6 H 0.237      
7 H 0.237      


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 -0.253 0.253
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.517 -3.366 0.000
y -3.366 -22.225 0.000
z 0.000 0.000 -16.069
Traceless
 xyz
x 3.630 -3.366 0.000
y -3.366 -6.432 0.000
z 0.000 0.000 2.803
Polar
3z2-r25.605
x2-y26.708
xy-3.366
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.905 -0.164 0.000
y -0.164 2.996 0.000
z 0.000 0.000 2.992


<r2> (average value of r2) Å2
<r2> 44.867
(<r2>)1/2 6.698