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

using model chemistry: CCD/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at CCD/6-31+G**
 hartrees
Energy at 0K-190.463275
Energy at 298.15K-190.468576
HF Energy-189.924210
Nuclear repulsion energy81.418787
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 CCD/6-31+G**
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 3907 3681 27.45      
2 A 3137 2956 53.36      
3 A 1589 1497 1.51      
4 A 1422 1340 4.22      
5 A 1232 1161 1.76      
6 A 1076 1014 110.71      
7 A 581 547 104.57      
8 A 421 397 46.78      
9 B 3906 3680 46.06      
10 B 3199 3015 41.85      
11 B 1492 1406 79.17      
12 B 1398 1317 25.63      
13 B 1131 1066 248.96      
14 B 1030 971 21.08      
15 B 392 369 213.32      

Unscaled Zero Point Vibrational Energy (zpe) 12955.3 cm-1
Scaled (by 0.9423) Zero Point Vibrational Energy (zpe) 12207.8 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 CCD/6-31+G**
ABC
1.38656 0.34066 0.30108

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.535
O2 0.000 1.170 -0.248
O3 0.000 -1.170 -0.248
H4 -0.891 -0.073 1.159
H5 0.891 0.073 1.159
H6 -0.802 1.171 -0.782
H7 0.802 -1.171 -0.782

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.40821.40821.08991.08991.93671.9367
O21.40822.34062.07791.99410.96392.5319
O31.40822.34061.99412.07792.53190.9639
H41.08992.07791.99411.78802.30712.8000
H51.08991.99412.07791.78802.80002.3071
H61.93670.96392.53192.30712.80002.8386
H71.93672.53190.96392.80002.30712.8386

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 107.995 C1 O3 H7 107.995
O2 C1 O3 112.421 O2 C1 H4 111.941
O2 C1 H5 105.221 O3 C1 H4 105.221
O3 C1 H5 111.941 H4 C1 H5 110.225
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability