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

using model chemistry: PBE1PBE/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 PBE1PBE/6-31G
 hartrees
Energy at 0K-190.663683
Energy at 298.15K-190.668963
HF Energy-190.663683
Nuclear repulsion energy80.372152
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 PBE1PBE/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 3693 3530 8.12      
2 A 3100 2964 53.83      
3 A 1561 1492 0.07      
4 A 1401 1339 2.96      
5 A 1211 1157 1.21      
6 A 1014 969 120.18      
7 A 562 537 161.85      
8 A 420 402 42.47      
9 B 3694 3531 14.29      
10 B 3166 3026 46.41      
11 B 1459 1394 35.75      
12 B 1376 1316 27.83      
13 B 1058 1012 229.80      
14 B 1005 961 48.82      
15 B 416 397 255.66      

Unscaled Zero Point Vibrational Energy (zpe) 12568.1 cm-1
Scaled (by 0.9559) Zero Point Vibrational Energy (zpe) 12013.8 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 PBE1PBE/6-31G
ABC
1.37190 0.32927 0.29181

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.539
O2 0.000 1.188 -0.249
O3 0.000 -1.188 -0.249
H4 -0.892 -0.087 1.163
H5 0.892 0.087 1.163
H6 -0.812 1.235 -0.787
H7 0.812 -1.235 -0.787

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.42571.42571.09261.09261.98551.9855
O21.42572.37672.10152.00090.97542.6116
O31.42572.37672.00092.10152.61160.9754
H41.09262.10152.00091.79322.35732.8332
H51.09262.00092.10151.79322.83322.3573
H61.98550.97542.61162.35732.83322.9558
H71.98552.61160.97542.83322.35732.9558

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 110.153 C1 O3 H7 110.153
O2 C1 O3 112.924 O2 C1 H4 112.456
O2 C1 H5 104.448 O3 C1 H4 104.448
O3 C1 H5 112.456 H4 C1 H5 110.293
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.102      
2 O -0.615      
3 O -0.615      
4 H 0.184      
5 H 0.184      
6 H 0.380      
7 H 0.380      


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 -0.173 0.173
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.532 -4.407 0.000
y -4.407 -22.960 0.000
z 0.000 0.000 -15.911
Traceless
 xyz
x 3.903 -4.407 0.000
y -4.407 -7.238 0.000
z 0.000 0.000 3.335
Polar
3z2-r26.670
x2-y27.428
xy-4.407
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.642 -0.173 0.000
y -0.173 2.757 0.000
z 0.000 0.000 2.595


<r2> (average value of r2) Å2
<r2> 46.575
(<r2>)1/2 6.825