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

using model chemistry: PBEPBE/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-190.753133
Energy at 298.15K-190.758338
HF Energy-190.753133
Nuclear repulsion energy80.664894
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/6-31+G**
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 3694 3652 16.38      
2 A 2971 2937 59.16      
3 A 1473 1456 0.28      
4 A 1343 1328 2.97      
5 A 1162 1149 2.60      
6 A 1003 992 93.94      
7 A 549 543 87.70      
8 A 398 393 47.60      
9 B 3694 3652 30.90      
10 B 3026 2991 43.49      
11 B 1397 1381 59.16      
12 B 1319 1304 16.80      
13 B 1019 1008 295.74      
14 B 974 962 4.44      
15 B 399 394 198.80      

Unscaled Zero Point Vibrational Energy (zpe) 12209.8 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 12070.7 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 PBEPBE/6-31+G**
ABC
1.37758 0.33255 0.29543

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.532
O2 0.000 1.184 -0.249
O3 0.000 -1.184 -0.249
H4 -0.902 -0.082 1.165
H5 0.902 0.082 1.165
H6 -0.824 1.190 -0.772
H7 0.824 -1.190 -0.772

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.41801.41801.10481.10481.94851.9485
O21.41802.36732.10112.00640.97652.5664
O31.41802.36732.00642.10112.56640.9765
H41.10482.10112.00641.81102.31902.8213
H51.10482.00642.10111.81102.82132.3190
H61.94850.97652.56642.31902.82132.8947
H71.94852.56640.97652.82132.31902.8947

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 107.492 C1 O3 H7 107.492
O2 C1 O3 113.173 O2 C1 H4 112.183
O2 C1 H5 104.683 O3 C1 H4 104.683
O3 C1 H5 112.183 H4 C1 H5 110.086
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.012      
2 O -0.490      
3 O -0.490      
4 H 0.148      
5 H 0.148      
6 H 0.347      
7 H 0.347      


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 -0.130 0.130
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.069 -3.782 0.000
y -3.782 -23.297 0.000
z 0.000 0.000 -16.998
Traceless
 xyz
x 4.078 -3.782 0.000
y -3.782 -6.763 0.000
z 0.000 0.000 2.686
Polar
3z2-r25.371
x2-y27.227
xy-3.782
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.419 -0.142 0.000
y -0.142 3.994 0.000
z 0.000 0.000 3.652


<r2> (average value of r2) Å2
<r2> 46.577
(<r2>)1/2 6.825