return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: M06-2X/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 M06-2X/6-31G
 hartrees
Energy at 0K-190.790731
Energy at 298.15K-190.796071
HF Energy-190.790731
Nuclear repulsion energy80.445728
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 M06-2X/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 3728 3728 13.83      
2 A 3119 3119 46.33      
3 A 1567 1567 0.22      
4 A 1401 1401 3.23      
5 A 1213 1213 0.46      
6 A 1034 1034 124.97      
7 A 579 579 188.89      
8 A 442 442 29.17      
9 B 3728 3728 22.72      
10 B 3181 3181 42.54      
11 B 1464 1464 37.74      
12 B 1376 1376 35.14      
13 B 1091 1091 222.68      
14 B 1007 1007 49.30      
15 B 438 438 264.12      

Unscaled Zero Point Vibrational Energy (zpe) 12683.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12683.8 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 M06-2X/6-31G
ABC
1.36479 0.33115 0.29284

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.542
O2 0.000 1.184 -0.250
O3 0.000 -1.184 -0.250
H4 -0.892 -0.082 1.164
H5 0.892 0.082 1.164
H6 -0.809 1.239 -0.792
H7 0.809 -1.239 -0.792

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.42471.42471.09071.09071.99251.9925
O21.42472.36872.09742.00250.97552.6122
O31.42472.36872.00252.09742.61220.9755
H41.09072.09742.00251.79182.36192.8389
H51.09072.00252.09741.79182.83892.3619
H61.99250.97552.61222.36192.83892.9605
H71.99252.61220.97552.83892.36192.9605

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 110.837 C1 O3 H7 110.837
O2 C1 O3 112.469 O2 C1 H4 112.310
O2 C1 H5 104.737 O3 C1 H4 104.737
O3 C1 H5 112.310 H4 C1 H5 110.449
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.149      
2 O -0.632      
3 O -0.632      
4 H 0.174      
5 H 0.174      
6 H 0.384      
7 H 0.384      


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 -0.152 0.152
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.574 -4.506 0.000
y -4.506 -23.122 0.000
z 0.000 0.000 -15.892
Traceless
 xyz
x 3.933 -4.506 0.000
y -4.506 -7.389 0.000
z 0.000 0.000 3.456
Polar
3z2-r26.912
x2-y27.548
xy-4.506
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.611 -0.170 0.000
y -0.170 2.661 0.000
z 0.000 0.000 2.562


<r2> (average value of r2) Å2
<r2> 46.520
(<r2>)1/2 6.821