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

using model chemistry: PBEPBE/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-190.825190
Energy at 298.15K-190.830348
HF Energy-190.825190
Nuclear repulsion energy80.902199
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/Def2TZVPP
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 3695 3650 14.62      
2 A 2950 2914 61.25      
3 A 1468 1450 0.17      
4 A 1351 1335 3.19      
5 A 1169 1155 1.59      
6 A 998 986 86.27      
7 A 544 537 60.46      
8 A 364 360 52.41      
9 B 3695 3650 27.65      
10 B 2997 2961 45.29      
11 B 1394 1377 55.48      
12 B 1329 1313 20.13      
13 B 1015 1002 257.85      
14 B 977 965 11.45      
15 B 383 378 159.38      

Unscaled Zero Point Vibrational Energy (zpe) 12163.4 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 12016.3 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/Def2TZVPP
ABC
1.38869 0.33402 0.29689

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/Def2TZVPP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.523
O2 0.000 1.182 -0.243
O3 0.000 -1.182 -0.243
H4 -0.895 -0.079 1.163
H5 0.895 0.079 1.163
H6 -0.803 1.190 -0.786
H7 0.803 -1.190 -0.786

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.40931.40931.10251.10251.94341.9434
O21.40932.36502.09001.99900.96932.5632
O31.40932.36501.99902.09002.56320.9693
H41.10252.09001.99901.79612.32772.8137
H51.10251.99902.09001.79612.81372.3277
H61.94340.96932.56322.32772.81372.8716
H71.94342.56320.96932.81372.32772.8716

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 108.157 C1 O3 H7 108.157
O2 C1 O3 114.088 O2 C1 H4 112.049
O2 C1 H5 104.816 O3 C1 H4 104.816
O3 C1 H5 112.049 H4 C1 H5 109.089
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.077      
2 O -0.316      
3 O -0.316      
4 H 0.086      
5 H 0.086      
6 H 0.192      
7 H 0.192      


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 -0.198 0.198
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.958 -3.395 0.000
y -3.395 -22.363 0.000
z 0.000 0.000 -16.851
Traceless
 xyz
x 3.649 -3.395 0.000
y -3.395 -5.958 0.000
z 0.000 0.000 2.310
Polar
3z2-r24.619
x2-y26.405
xy-3.395
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.495 -0.187 0.000
y -0.187 3.878 0.000
z 0.000 0.000 3.637


<r2> (average value of r2) Å2
<r2> 46.147
(<r2>)1/2 6.793