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

using model chemistry: BLYP/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 BLYP/6-31G*
 hartrees
Energy at 0K-190.883095
Energy at 298.15K-190.888316
HF Energy-190.883095
Nuclear repulsion energy80.383112
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 BLYP/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 3560 3531 3.76      
2 A 2950 2927 72.87      
3 A 1509 1497 1.69      
4 A 1378 1367 3.15      
5 A 1181 1171 2.50      
6 A 987 979 92.79      
7 A 556 551 85.46      
8 A 392 389 28.42      
9 B 3560 3531 6.38      
10 B 2995 2970 69.70      
11 B 1428 1416 78.77      
12 B 1350 1339 18.10      
13 B 1013 1005 230.39      
14 B 988 980 9.48      
15 B 422 419 184.73      

Unscaled Zero Point Vibrational Energy (zpe) 12133.6 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 12035.3 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 BLYP/6-31G*
ABC
1.36503 0.33087 0.29320

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.524
O2 0.000 1.191 -0.243
O3 0.000 -1.191 -0.243
H4 -0.895 -0.088 1.168
H5 0.895 0.088 1.168
H6 -0.808 1.181 -0.794
H7 0.808 -1.181 -0.794

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.41721.41721.10621.10621.94511.9451
O21.41722.38252.10512.00270.97732.5653
O31.41722.38252.00272.10512.56530.9773
H41.10622.10512.00271.79862.33842.8182
H51.10622.00272.10511.79862.81822.3384
H61.94510.97732.56532.33842.81822.8609
H71.94512.56530.97732.81822.33842.8609

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 107.211 C1 O3 H7 107.211
O2 C1 O3 114.401 O2 C1 H4 112.491
O2 C1 H5 104.381 O3 C1 H4 104.381
O3 C1 H5 112.491 H4 C1 H5 108.770
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.122      
2 O -0.555      
3 O -0.555      
4 H 0.126      
5 H 0.126      
6 H 0.368      
7 H 0.368      


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 -0.360 0.360
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.718 -3.235 0.000
y -3.235 -22.092 0.000
z 0.000 0.000 -16.227
Traceless
 xyz
x 3.442 -3.235 0.000
y -3.235 -6.119 0.000
z 0.000 0.000 2.677
Polar
3z2-r25.355
x2-y26.374
xy-3.235
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.937 -0.186 0.000
y -0.186 3.016 0.000
z 0.000 0.000 2.971


<r2> (average value of r2) Å2
<r2> 46.247
(<r2>)1/2 6.801