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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-190.721133
Energy at 298.15K-190.726378
HF Energy-190.721133
Nuclear repulsion energy80.834943
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 PBEPBEultrafine/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 3609 3549 6.37      
2 A 2956 2907 72.31      
3 A 1502 1477 1.05      
4 A 1379 1356 3.18      
5 A 1184 1165 1.46      
6 A 1014 998 95.31      
7 A 566 557 89.02      
8 A 395 388 29.76      
9 B 3609 3550 11.15      
10 B 3002 2953 66.91      
11 B 1424 1401 80.85      
12 B 1350 1327 15.12      
13 B 1051 1034 232.07      
14 B 993 976 8.80      
15 B 425 418 192.13      

Unscaled Zero Point Vibrational Energy (zpe) 12229.5 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 12027.7 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 PBEPBEultrafine/6-31G*
ABC
1.37712 0.33536 0.29725

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.531
O2 0.000 1.181 -0.246
O3 0.000 -1.181 -0.246
H4 -0.899 -0.089 1.171
H5 0.899 0.089 1.171
H6 -0.814 1.145 -0.792
H7 0.814 -1.145 -0.792

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.41421.41421.10731.10731.92931.9293
O21.41422.36272.10542.00260.98052.5239
O31.41422.36272.00262.10542.52390.9805
H41.10732.10542.00261.80692.32022.8110
H51.10732.00262.10541.80692.81102.3202
H61.92930.98052.52392.32022.81102.8090
H71.92932.52390.98052.81102.32022.8090

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 105.925 C1 O3 H7 105.925
O2 C1 O3 113.308 O2 C1 H4 112.662
O2 C1 H5 104.503 O3 C1 H4 104.503
O3 C1 H5 112.662 H4 C1 H5 109.345
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.059      
2 O -0.562      
3 O -0.562      
4 H 0.150      
5 H 0.150      
6 H 0.383      
7 H 0.383      


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 -0.399 0.399
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.638 -3.254 0.000
y -3.254 -22.034 0.000
z 0.000 0.000 -16.192
Traceless
 xyz
x 3.475 -3.254 0.000
y -3.254 -6.119 0.000
z 0.000 0.000 2.645
Polar
3z2-r25.289
x2-y26.396
xy-3.254
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.923 -0.168 0.000
y -0.168 2.984 0.000
z 0.000 0.000 2.959


<r2> (average value of r2) Å2
<r2> 45.783
(<r2>)1/2 6.766