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

using model chemistry: B1B95/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B1B95/6-31G
 hartrees
Energy at 0K-190.797120
Energy at 298.15K-190.802389
HF Energy-190.797120
Nuclear repulsion energy80.453662
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 B1B95/6-31G
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 3696 3525 8.16      
2 A 3108 2964 54.11      
3 A 1563 1491 0.13      
4 A 1398 1333 2.83      
5 A 1207 1151 1.08      
6 A 1012 966 121.26      
7 A 560 534 163.53      
8 A 417 398 41.85      
9 B 3697 3526 14.42      
10 B 3173 3026 46.90      
11 B 1459 1392 35.45      
12 B 1372 1309 28.56      
13 B 1055 1007 229.96      
14 B 1002 956 50.01      
15 B 411 392 256.28      

Unscaled Zero Point Vibrational Energy (zpe) 12565.3 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 11983.5 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 B1B95/6-31G
ABC
1.37380 0.33000 0.29234

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.539
O2 0.000 1.187 -0.249
O3 0.000 -1.187 -0.249
H4 -0.890 -0.086 1.162
H5 0.890 0.086 1.162
H6 -0.810 1.236 -0.787
H7 0.810 -1.236 -0.787

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.42461.42461.08991.08991.98571.9857
O21.42462.37392.09841.99850.97412.6109
O31.42462.37391.99852.09842.61090.9741
H41.08992.09841.99851.78932.35632.8306
H51.08991.99852.09841.78932.83062.3563
H61.98570.97412.61092.35632.83062.9558
H71.98572.61090.97412.83062.35632.9558

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 110.336 C1 O3 H7 110.336
O2 C1 O3 112.846 O2 C1 H4 112.447
O2 C1 H5 104.475 O3 C1 H4 104.475
O3 C1 H5 112.447 H4 C1 H5 110.337
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.119      
2 O -0.612      
3 O -0.612      
4 H 0.176      
5 H 0.176      
6 H 0.376      
7 H 0.376      


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 -0.166 0.166
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.490 -4.411 0.000
y -4.411 -22.890 0.000
z 0.000 0.000 -15.850
Traceless
 xyz
x 3.880 -4.411 0.000
y -4.411 -7.221 0.000
z 0.000 0.000 3.340
Polar
3z2-r26.681
x2-y27.401
xy-4.411
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.631 -0.175 0.000
y -0.175 2.740 0.000
z 0.000 0.000 2.587


<r2> (average value of r2) Å2
<r2> 46.473
(<r2>)1/2 6.817