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

using model chemistry: BLYP/STO-3G

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/STO-3G
 hartrees
Energy at 0K-188.265637
Energy at 298.15K-188.270586
HF Energy-188.265637
Nuclear repulsion energy77.217344
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/STO-3G
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 3479 3219 23.03      
2 A 3090 2859 31.19      
3 A 1581 1463 0.90      
4 A 1511 1398 0.96      
5 A 1200 1110 1.17      
6 A 983 909 20.29      
7 A 500 463 60.96      
8 A 371 343 12.18      
9 B 3483 3223 74.09      
10 B 3197 2957 13.21      
11 B 1536 1421 35.09      
12 B 1402 1297 16.52      
13 B 1028 951 66.56      
14 B 981 908 9.73      
15 B 400 370 91.77      

Unscaled Zero Point Vibrational Energy (zpe) 12370.9 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 11445.6 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/STO-3G
ABC
1.27115 0.30409 0.27092

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.554
O2 0.000 1.244 -0.261
O3 0.000 -1.244 -0.261
H4 -0.913 -0.099 1.209
H5 0.913 0.099 1.209
H6 -0.899 1.135 -0.784
H7 0.899 -1.135 -0.784

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.48701.48701.12831.12831.97121.9712
O21.48702.48822.19042.07471.04582.5962
O31.48702.48822.07472.19042.59621.0458
H41.12832.19042.07471.83742.34412.8858
H51.12832.07472.19041.83742.88582.3441
H61.97121.04582.59622.34412.88582.8948
H71.97122.59621.04582.88582.34412.8948

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 100.760 C1 O3 H7 100.760
O2 C1 O3 113.578 O2 C1 H4 113.048
O2 C1 H5 104.147 O3 C1 H4 104.147
O3 C1 H5 113.048 H4 C1 H5 109.028
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.005      
2 O -0.224      
3 O -0.224      
4 H 0.065      
5 H 0.065      
6 H 0.157      
7 H 0.157      


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 -0.181 0.181
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.566 -2.235 0.000
y -2.235 -19.795 0.000
z 0.000 0.000 -15.373
Traceless
 xyz
x 3.018 -2.235 0.000
y -2.235 -4.825 0.000
z 0.000 0.000 1.807
Polar
3z2-r23.614
x2-y25.228
xy-2.235
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.804 -0.227 0.000
y -0.227 1.872 0.000
z 0.000 0.000 1.685


<r2> (average value of r2) Å2
<r2> 48.077
(<r2>)1/2 6.934