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

using model chemistry: LSDA/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at LSDA/6-31G(2df,p)
 hartrees
Energy at 0K-190.015266
Energy at 298.15K-190.020493
HF Energy-190.015266
Nuclear repulsion energy82.027926
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 LSDA/6-31G(2df,p)
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 3710 3651 16.63      
2 A 2916 2869 64.32      
3 A 1455 1431 0.05      
4 A 1353 1331 2.51      
5 A 1179 1160 0.24      
6 A 1049 1032 93.34      
7 A 581 571 71.67      
8 A 371 365 33.96      
9 B 3710 3651 27.76      
10 B 2959 2911 49.83      
11 B 1388 1365 68.46      
12 B 1327 1306 18.65      
13 B 1116 1098 204.97      
14 B 987 971 29.26      
15 B 397 391 180.12      

Unscaled Zero Point Vibrational Energy (zpe) 12248.2 cm-1
Scaled (by 0.984) Zero Point Vibrational Energy (zpe) 12052.2 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 LSDA/6-31G(2df,p)
ABC
1.39837 0.34882 0.30831

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-31G(2df,p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.523
O2 0.000 1.157 -0.243
O3 0.000 -1.157 -0.243
H4 -0.897 -0.088 1.172
H5 0.897 0.088 1.172
H6 -0.802 1.127 -0.794
H7 0.802 -1.127 -0.794

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.38791.38791.11061.11061.90951.9095
O21.38792.31432.08771.98740.97322.4822
O31.38792.31431.98742.08772.48220.9732
H41.11062.08771.98741.80252.31292.7979
H51.11061.98742.08771.80252.79792.3129
H61.90950.97322.48222.31292.79792.7656
H71.90952.48220.97322.79792.31292.7656

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 106.624 C1 O3 H7 106.624
O2 C1 O3 112.978 O2 C1 H4 112.889
O2 C1 H5 104.850 O3 C1 H4 104.850
O3 C1 H5 112.889 H4 C1 H5 108.486
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.128      
2 O -0.367      
3 O -0.367      
4 H 0.127      
5 H 0.127      
6 H 0.303      
7 H 0.303      


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 -0.499 0.499
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.641 -3.026 0.000
y -3.026 -21.627 0.000
z 0.000 0.000 -16.214
Traceless
 xyz
x 3.280 -3.026 0.000
y -3.026 -5.699 0.000
z 0.000 0.000 2.420
Polar
3z2-r24.840
x2-y25.986
xy-3.026
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.141 -0.186 0.000
y -0.186 3.167 0.000
z 0.000 0.000 3.256


<r2> (average value of r2) Å2
<r2> 44.604
(<r2>)1/2 6.679