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

using model chemistry: PBEPBE/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at PBEPBE/cc-pVTZ
 hartrees
Energy at 0K-190.813681
Energy at 298.15K-190.818842
HF Energy-190.813681
Nuclear repulsion energy80.901115
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 PBEPBE/cc-pVTZ
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 3683 3658 13.17      
2 A 2942 2921 64.18      
3 A 1471 1461 0.22      
4 A 1354 1344 3.27      
5 A 1169 1161 1.37      
6 A 997 990 87.25      
7 A 545 542 59.82      
8 A 359 357 48.82      
9 B 3683 3658 24.33      
10 B 2986 2965 51.03      
11 B 1395 1385 57.95      
12 B 1330 1321 19.99      
13 B 1019 1012 246.78      
14 B 979 972 12.21      
15 B 381 378 159.64      

Unscaled Zero Point Vibrational Energy (zpe) 12145.8 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 12062.0 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 PBEPBE/cc-pVTZ
ABC
1.38733 0.33425 0.29693

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.529
O2 0.000 1.181 -0.248
O3 0.000 -1.181 -0.248
H4 -0.898 -0.081 1.164
H5 0.898 0.081 1.164
H6 -0.820 1.176 -0.771
H7 0.820 -1.176 -0.771

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.41411.41411.10251.10251.93591.9359
O21.41412.36292.09612.00270.97272.5507
O31.41412.36292.00272.09612.55070.9727
H41.10252.09612.00271.80272.30962.8100
H51.10252.00272.09611.80272.81002.3096
H61.93590.97272.55072.30962.81002.8678
H71.93592.55070.97272.81002.30962.8678

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 106.949 C1 O3 H7 106.949
O2 C1 O3 113.331 O2 C1 H4 112.203
O2 C1 H5 104.779 O3 C1 H4 104.779
O3 C1 H5 112.203 H4 C1 H5 109.671
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.133      
2 O -0.309      
3 O -0.309      
4 H 0.049      
5 H 0.049      
6 H 0.194      
7 H 0.194      


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 -0.239 0.239
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.863 -3.255 0.000
y -3.255 -22.132 0.000
z 0.000 0.000 -16.674
Traceless
 xyz
x 3.540 -3.255 0.000
y -3.255 -5.863 0.000
z 0.000 0.000 2.323
Polar
3z2-r24.646
x2-y26.269
xy-3.255
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.388 -0.197 0.000
y -0.197 3.703 0.000
z 0.000 0.000 3.514


<r2> (average value of r2) Å2
<r2> 46.016
(<r2>)1/2 6.784