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

using model chemistry: B3LYP/SDD

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/SDD
 hartrees
Energy at 0K-190.927954
Energy at 298.15K-190.933157
HF Energy-190.927954
Nuclear repulsion energy79.562810
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/SDD
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 3684 3541 7.34      
2 A 3090 2971 71.08      
3 A 1518 1459 0.02      
4 A 1365 1312 2.59      
5 A 1183 1137 2.56      
6 A 979 941 107.08      
7 A 543 522 157.11      
8 A 413 397 47.19      
9 B 3685 3542 12.91      
10 B 3161 3039 45.74      
11 B 1449 1393 33.40      
12 B 1336 1284 31.95      
13 B 1006 967 279.91      
14 B 997 958 16.58      
15 B 389 374 253.67      

Unscaled Zero Point Vibrational Energy (zpe) 12397.6 cm-1
Scaled (by 0.9613) Zero Point Vibrational Energy (zpe) 11917.8 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/SDD
ABC
1.33967 0.32279 0.28550

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/SDD

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.550
O2 0.000 1.200 -0.252
O3 0.000 -1.200 -0.252
H4 -0.899 -0.086 1.169
H5 0.899 0.086 1.169
H6 -0.812 1.250 -0.801
H7 0.812 -1.250 -0.801

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.44381.44381.09521.09522.01152.0115
O21.44382.40102.11792.01760.98122.6391
O31.44382.40102.01762.11792.63910.9812
H41.09522.11792.01761.80632.38232.8572
H51.09522.01762.11791.80632.85722.3823
H62.01150.98122.63912.38232.85722.9809
H72.01152.63910.98122.85722.38232.9809

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 110.645 C1 O3 H7 110.645
O2 C1 O3 112.500 O2 C1 H4 112.321
O2 C1 H5 104.401 O3 C1 H4 104.401
O3 C1 H5 112.321 H4 C1 H5 111.105
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.156      
2 O -0.481      
3 O -0.481      
4 H 0.203      
5 H 0.203      
6 H 0.356      
7 H 0.356      


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 -0.098 0.098
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.629 -4.505 0.000
y -4.505 -23.415 0.000
z 0.000 0.000 -15.906
Traceless
 xyz
x 4.032 -4.505 0.000
y -4.505 -7.647 0.000
z 0.000 0.000 3.615
Polar
3z2-r27.231
x2-y27.786
xy-4.505
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.654 -0.148 0.000
y -0.148 2.854 0.000
z 0.000 0.000 2.634


<r2> (average value of r2) Å2
<r2> 47.424
(<r2>)1/2 6.887