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

using model chemistry: LSDA/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 LSDA/6-31G
 hartrees
Energy at 0K-189.924462
Energy at 298.15K-189.929721
HF Energy-189.924462
Nuclear repulsion energy80.407528
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 LSDA/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 3534 3462 3.95      
2 A 2986 2925 58.40      
3 A 1492 1461 0.06      
4 A 1345 1318 2.46      
5 A 1170 1146 0.56      
6 A 995 975 116.02      
7 A 568 556 154.28      
8 A 407 398 34.15      
9 B 3536 3464 8.24      
10 B 3043 2981 45.88      
11 B 1397 1369 26.79      
12 B 1325 1298 21.55      
13 B 1043 1022 231.67      
14 B 974 955 55.98      
15 B 432 423 259.88      

Unscaled Zero Point Vibrational Energy (zpe) 12122.7 cm-1
Scaled (by 0.9797) Zero Point Vibrational Energy (zpe) 11876.6 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 LSDA/6-31G
ABC
1.37159 0.33102 0.29377

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.533
O2 0.000 1.185 -0.247
O3 0.000 -1.185 -0.247
H4 -0.898 -0.098 1.170
H5 0.898 0.098 1.170
H6 -0.824 1.223 -0.793
H7 0.824 -1.223 -0.793

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.41841.41841.10511.10511.98321.9832
O21.41842.36942.11131.99870.98942.6027
O31.41842.36941.99872.11132.60270.9894
H41.10512.11131.99871.80622.36712.8433
H51.10511.99872.11131.80622.84332.3671
H61.98320.98942.60272.36712.84332.9491
H71.98322.60270.98942.84332.36712.9491

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 109.625 C1 O3 H7 109.625
O2 C1 O3 113.289 O2 C1 H4 112.999
O2 C1 H5 104.064 O3 C1 H4 104.064
O3 C1 H5 112.999 H4 C1 H5 109.620
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.003      
2 O -0.556      
3 O -0.556      
4 H 0.184      
5 H 0.184      
6 H 0.374      
7 H 0.374      


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 -0.356 0.356
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.674 -4.365 0.000
y -4.365 -22.782 0.000
z 0.000 0.000 -16.090
Traceless
 xyz
x 3.762 -4.365 0.000
y -4.365 -6.900 0.000
z 0.000 0.000 3.138
Polar
3z2-r26.277
x2-y27.108
xy-4.365
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.821 -0.220 0.000
y -0.220 2.942 0.000
z 0.000 0.000 2.787


<r2> (average value of r2) Å2
<r2> 46.468
(<r2>)1/2 6.817