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: B97D3/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B97D3/TZVP
 hartrees
Energy at 0K-190.920877
Energy at 298.15K-190.926116
HF Energy-190.920877
Nuclear repulsion energy80.865275
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 B97D3/TZVP
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 3716 3663 13.82      
2 A 2973 2931 71.61      
3 A 1491 1470 0.78      
4 A 1368 1348 3.08      
5 A 1184 1167 3.27      
6 A 989 975 98.37      
7 A 558 550 82.32      
8 A 398 392 44.95      
9 B 3716 3663 23.60      
10 B 3023 2979 55.15      
11 B 1427 1407 60.23      
12 B 1343 1323 19.00      
13 B 1005 991 158.15      
14 B 984 970 122.57      
15 B 411 405 186.11      

Unscaled Zero Point Vibrational Energy (zpe) 12293.2 cm-1
Scaled (by 0.9856) Zero Point Vibrational Energy (zpe) 12116.2 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 B97D3/TZVP
ABC
1.38538 0.33369 0.29607

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/TZVP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.533
O2 0.000 1.183 -0.248
O3 0.000 -1.183 -0.248
H4 -0.896 -0.080 1.162
H5 0.896 0.080 1.162
H6 -0.811 1.180 -0.777
H7 0.811 -1.180 -0.777

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.41701.41701.09811.09811.94071.9407
O21.41702.36552.09402.00170.96872.5539
O31.41702.36552.00172.09402.55390.9687
H41.09812.09402.00171.79992.31402.8082
H51.09812.00172.09401.79992.80822.3140
H61.94070.96872.55392.31402.80822.8643
H71.94072.55390.96872.80822.31402.8643

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 107.385 C1 O3 H7 107.385
O2 C1 O3 113.169 O2 C1 H4 112.103
O2 C1 H5 104.763 O3 C1 H4 104.763
O3 C1 H5 112.103 H4 C1 H5 110.082
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.008      
2 O -0.368      
3 O -0.368      
4 H 0.105      
5 H 0.105      
6 H 0.259      
7 H 0.259      


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 -0.189 0.189
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.837 -3.591 0.000
y -3.591 -22.748 0.000
z 0.000 0.000 -16.557
Traceless
 xyz
x 3.815 -3.591 0.000
y -3.591 -6.551 0.000
z 0.000 0.000 2.736
Polar
3z2-r25.472
x2-y26.911
xy-3.591
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.261 -0.167 0.000
y -0.167 3.570 0.000
z 0.000 0.000 3.395


<r2> (average value of r2) Å2
<r2> 46.177
(<r2>)1/2 6.795