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

using model chemistry: HSEh1PBE/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 HSEh1PBE/6-31G**
 hartrees
Energy at 0K-190.758293
Energy at 298.15K-190.763579
HF Energy-190.758293
Nuclear repulsion energy81.796995
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 HSEh1PBE/6-31G**
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 3860 3684 17.45      
2 A 3043 2904 72.00      
3 A 1544 1473 1.28      
4 A 1410 1346 3.62      
5 A 1224 1168 0.21      
6 A 1073 1024 111.08      
7 A 581 554 90.83      
8 A 398 379 44.44      
9 B 3860 3683 31.01      
10 B 3093 2951 64.58      
11 B 1466 1399 80.68      
12 B 1387 1323 29.66      
13 B 1130 1078 231.31      
14 B 1022 975 25.63      
15 B 407 389 198.58      

Unscaled Zero Point Vibrational Energy (zpe) 12747.9 cm-1
Scaled (by 0.9543) Zero Point Vibrational Energy (zpe) 12165.3 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 HSEh1PBE/6-31G**
ABC
1.40347 0.34398 0.30444

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.526
O2 0.000 1.165 -0.245
O3 0.000 -1.165 -0.245
H4 -0.890 -0.079 1.164
H5 0.890 0.079 1.164
H6 -0.801 1.149 -0.781
H7 0.801 -1.149 -0.781

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.39731.39731.09801.09801.91561.9156
O21.39732.33072.07981.98940.96402.5069
O31.39732.33071.98942.07982.50690.9640
H41.09802.07981.98941.78752.30162.7907
H51.09801.98942.07981.78752.79072.3016
H61.91560.96402.50692.30162.79072.8012
H71.91562.50690.96402.79072.30162.8012

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 107.005 C1 O3 H7 107.005
O2 C1 O3 113.023 O2 C1 H4 112.364
O2 C1 H5 105.106 O3 C1 H4 105.106
O3 C1 H5 112.364 H4 C1 H5 108.966
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.192      
2 O -0.537      
3 O -0.537      
4 H 0.121      
5 H 0.121      
6 H 0.319      
7 H 0.319      


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 -0.349 0.349
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.486 -3.371 0.000
y -3.371 -21.949 0.000
z 0.000 0.000 -16.001
Traceless
 xyz
x 3.489 -3.371 0.000
y -3.371 -6.206 0.000
z 0.000 0.000 2.717
Polar
3z2-r25.434
x2-y26.463
xy-3.371
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.821 -0.143 0.000
y -0.143 2.807 0.000
z 0.000 0.000 2.847


<r2> (average value of r2) Å2
<r2> 44.924
(<r2>)1/2 6.703