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

using model chemistry: B3LYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3LYP/STO-3G
 hartrees
Energy at 0K-188.340535
Energy at 298.15K-188.345549
HF Energy-188.340535
Nuclear repulsion energy78.310674
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 B3LYP/STO-3G
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 3688 3291 16.61      
2 A 3216 2870 23.38      
3 A 1636 1460 0.65      
4 A 1563 1395 2.04      
5 A 1251 1117 0.60      
6 A 1046 933 24.22      
7 A 513 458 65.14      
8 A 385 344 18.40      
9 B 3691 3294 56.42      
10 B 3324 2966 9.35      
11 B 1586 1416 37.66      
12 B 1461 1304 17.31      
13 B 1118 998 53.30      
14 B 1018 908 11.88      
15 B 386 344 102.36      

Unscaled Zero Point Vibrational Energy (zpe) 12940.8 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 11548.4 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 B3LYP/STO-3G
ABC
1.29350 0.31457 0.27931

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.550
O2 0.000 1.223 -0.258
O3 0.000 -1.223 -0.258
H4 -0.905 -0.088 1.202
H5 0.905 0.088 1.202
H6 -0.877 1.121 -0.785
H7 0.877 -1.121 -0.785

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.46561.46561.11931.11931.95171.9517
O21.46562.44572.16102.05921.02852.5580
O31.46562.44572.05922.16102.55801.0285
H41.11932.16102.05921.81912.32642.8627
H51.11932.05922.16101.81912.86272.3264
H61.95171.02852.55802.32642.86272.8479
H71.95172.55801.02852.86272.32642.8479

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 101.545 C1 O3 H7 101.545
O2 C1 O3 113.098 O2 C1 H4 112.755
O2 C1 H5 104.820 O3 C1 H4 104.820
O3 C1 H5 112.755 H4 C1 H5 108.695
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.022      
2 O -0.249      
3 O -0.249      
4 H 0.069      
5 H 0.069      
6 H 0.169      
7 H 0.169      


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 -0.167 0.167
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.518 -2.344 0.000
y -2.344 -20.042 0.000
z 0.000 0.000 -15.249
Traceless
 xyz
x 3.127 -2.344 0.000
y -2.344 -5.158 0.000
z 0.000 0.000 2.031
Polar
3z2-r24.062
x2-y25.524
xy-2.344
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.725 -0.202 0.000
y -0.202 1.688 0.000
z 0.000 0.000 1.638


<r2> (average value of r2) Å2
<r2> 47.007
(<r2>)1/2 6.856