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

using model chemistry: HF/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 HF/6-31G*
 hartrees
Energy at 0K-189.900627
Energy at 298.15K-189.906026
HF Energy-189.900627
Nuclear repulsion energy82.613551
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/6-31G*
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 4093 3677 38.81      
2 A 3245 2916 77.47      
3 A 1697 1525 4.57      
4 A 1528 1373 5.65      
5 A 1319 1185 0.39      
6 A 1166 1048 142.08      
7 A 618 556 108.65      
8 A 438 394 59.56      
9 B 4092 3676 65.60      
10 B 3293 2959 86.07      
11 B 1610 1446 113.37      
12 B 1507 1354 54.33      
13 B 1233 1108 253.28      
14 B 1102 990 26.26      
15 B 411 369 219.70      

Unscaled Zero Point Vibrational Energy (zpe) 13675.8 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 12287.7 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/6-31G*
ABC
1.42004 0.35199 0.31036

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.527
O2 0.000 1.151 -0.244
O3 0.000 -1.151 -0.244
H4 -0.881 -0.064 1.153
H5 0.881 0.064 1.153
H6 -0.780 1.158 -0.784
H7 0.780 -1.158 -0.784

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.38571.38571.08251.08251.91511.9151
O21.38572.30232.05051.97710.94862.4960
O31.38572.30231.97712.05052.49600.9486
H41.08252.05051.97711.76722.29192.7759
H51.08251.97712.05051.76722.77592.2919
H61.91510.94862.49602.29192.77592.7919
H71.91512.49600.94862.77592.29192.7919

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 108.805 C1 O3 H7 108.805
O2 C1 O3 112.345 O2 C1 H4 111.769
O2 C1 H5 105.802 O3 C1 H4 105.802
O3 C1 H5 111.769 H4 C1 H5 109.425
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.261      
2 O -0.730      
3 O -0.730      
4 H 0.158      
5 H 0.158      
6 H 0.442      
7 H 0.442      


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 -0.241 0.241
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.478 -3.616 0.000
y -3.616 -22.533 0.000
z 0.000 0.000 -15.858
Traceless
 xyz
x 3.718 -3.616 0.000
y -3.616 -6.865 0.000
z 0.000 0.000 3.148
Polar
3z2-r26.296
x2-y27.055
xy-3.616
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.573 -0.107 0.000
y -0.107 2.443 0.000
z 0.000 0.000 2.572


<r2> (average value of r2) Å2
<r2> 44.384
(<r2>)1/2 6.662