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

using model chemistry: CCD/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-190.677597
Energy at 298.15K-190.682835
HF Energy-189.993281
Nuclear repulsion energy81.760650
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/aug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3882 3715 31.11      
2 A 3081 2949 49.33      
3 A 1563 1496 0.27      
4 A 1419 1358 3.52      
5 A 1232 1179 1.05      
6 A 1075 1029 98.50      
7 A 570 546 65.30      
8 A 384 368 58.50      
9 B 3880 3714 52.91      
10 B 3134 2999 32.82      
11 B 1476 1412 62.02      
12 B 1399 1339 31.67      
13 B 1129 1081 237.46      
14 B 1028 984 23.82      
15 B 361 345 164.36      

Unscaled Zero Point Vibrational Energy (zpe) 12806.2 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 12255.5 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/aug-cc-pVTZ
ABC
1.40005 0.34331 0.30377

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/aug-cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.531
O2 0.000 1.165 -0.247
O3 0.000 -1.165 -0.247
H4 -0.890 -0.068 1.157
H5 0.890 0.068 1.157
H6 -0.804 1.170 -0.771
H7 0.804 -1.170 -0.771

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.40101.40101.09001.09001.92591.9259
O21.40102.33052.06981.99130.95942.5246
O31.40102.33051.99132.06982.52460.9594
H41.09002.06981.99131.78462.29292.7924
H51.09001.99132.06981.78462.79242.2929
H61.92590.95942.52462.29292.79242.8388
H71.92592.52460.95942.79242.29292.8388

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 107.895 C1 O3 H7 107.895
O2 C1 O3 112.558 O2 C1 H4 111.782
O2 C1 H5 105.466 O3 C1 H4 105.466
O3 C1 H5 111.782 H4 C1 H5 109.886
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability