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

using model chemistry: CID/3-21G

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/3-21G
 hartrees
Energy at 0K-189.159278
Energy at 298.15K-189.164565
HF Energy-188.845397
Nuclear repulsion energy79.863416
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/3-21G
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 3628 3379 1.88      
2 A 3121 2908 53.52      
3 A 1634 1523 2.23      
4 A 1461 1361 3.95      
5 A 1256 1170 1.82      
6 A 1013 943 115.33      
7 A 576 537 149.40      
8 A 405 377 27.66      
9 B 3626 3378 3.49      
10 B 3165 2948 59.24      
11 B 1504 1401 55.18      
12 B 1431 1333 28.70      
13 B 1092 1017 147.45      
14 B 1034 963 53.22      
15 B 401 373 241.72      

Unscaled Zero Point Vibrational Energy (zpe) 12672.8 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 11806.0 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/3-21G
ABC
1.34775 0.32596 0.28793

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.546
O2 0.000 1.198 -0.250
O3 0.000 -1.198 -0.250
H4 -0.888 -0.088 1.173
H5 0.888 0.088 1.173
H6 -0.809 1.194 -0.812
H7 0.809 -1.194 -0.812

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.43841.43841.09091.09091.98081.9808
O21.43842.39622.11402.01160.98482.5868
O31.43842.39622.01162.11402.58680.9848
H41.09092.11402.01161.78502.36462.8361
H51.09092.01162.11401.78502.83612.3646
H61.98080.98482.58682.36462.83612.8839
H71.98082.58680.98482.83612.36462.8839

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 108.194 C1 O3 H7 108.194
O2 C1 O3 112.804 O2 C1 H4 112.674
O2 C1 H5 104.533 O3 C1 H4 104.533
O3 C1 H5 112.674 H4 C1 H5 109.793
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability