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: CID/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 CID/6-31G*
 hartrees
Energy at 0K-190.353558
Energy at 298.15K-190.358910
HF Energy-189.899704
Nuclear repulsion energy81.864695
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 CID/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 3897 3599 27.05      
2 A 3163 2922 60.17      
3 A 1628 1504 1.96      
4 A 1467 1355 5.49      
5 A 1271 1174 0.49      
6 A 1117 1032 122.13      
7 A 599 553 109.05      
8 A 425 393 45.98      
9 B 3893 3596 44.99      
10 B 3218 2973 61.27      
11 B 1532 1415 98.37      
12 B 1448 1337 33.06      
13 B 1184 1094 220.62      
14 B 1062 981 28.31      
15 B 414 383 217.65      

Unscaled Zero Point Vibrational Energy (zpe) 13159.5 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 12155.4 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 CID/6-31G*
ABC
1.39429 0.34594 0.30530

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.532
O2 0.000 1.162 -0.246
O3 0.000 -1.162 -0.246
H4 -0.888 -0.073 1.161
H5 0.888 0.073 1.161
H6 -0.797 1.147 -0.787
H7 0.797 -1.147 -0.787

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.39851.39851.09021.09021.92171.9217
O21.39852.32412.07181.98830.96392.5023
O31.39852.32411.98832.07182.50230.9639
H41.09022.07181.98831.78142.30052.7909
H51.09021.98832.07181.78142.79092.3005
H61.92170.96392.50232.30052.79092.7944
H71.92172.50230.96392.79092.30052.7944

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 107.442 C1 O3 H7 107.442
O2 C1 O3 112.383 O2 C1 H4 112.114
O2 C1 H5 105.382 O3 C1 H4 105.382
O3 C1 H5 112.114 H4 C1 H5 109.572
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability