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

using model chemistry: HF/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 HF/6-31G(2df,p)
 hartrees
Energy at 0K-189.929977
Energy at 298.15K-189.935340
HF Energy-189.929977
Nuclear repulsion energy82.791008
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 HF/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 4162 3769 40.48      
2 A 3186 2885 74.64      
3 A 1670 1512 2.39      
4 A 1515 1372 5.05      
5 A 1312 1188 0.21      
6 A 1158 1048 124.96      
7 A 610 553 78.31      
8 A 417 378 62.24      
9 B 4160 3767 66.32      
10 B 3230 2925 75.64      
11 B 1591 1441 92.68      
12 B 1496 1354 53.94      
13 B 1224 1108 232.85      
14 B 1099 995 26.33      
15 B 389 353 184.55      

Unscaled Zero Point Vibrational Energy (zpe) 13609.6 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 12323.5 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 HF/6-31G(2df,p)
ABC
1.42560 0.35329 0.31151

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.525
O2 0.000 1.149 -0.244
O3 0.000 -1.149 -0.244
H4 -0.882 -0.063 1.154
H5 0.882 0.063 1.154
H6 -0.775 1.157 -0.779
H7 0.775 -1.157 -0.779

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.38281.38281.08521.08521.90791.9079
O21.38282.29792.05001.97800.94182.4908
O31.38282.29791.97802.05002.49080.9418
H41.08522.05001.97801.76892.28822.7712
H51.08521.97802.05001.76892.77122.2882
H61.90790.94182.49082.28822.77122.7855
H71.90792.49080.94182.77122.28822.7855

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 108.841 C1 O3 H7 108.841
O2 C1 O3 112.383 O2 C1 H4 111.764
O2 C1 H5 105.908 O3 C1 H4 105.908
O3 C1 H5 111.764 H4 C1 H5 109.171
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.200      
2 O -0.551      
3 O -0.551      
4 H 0.122      
5 H 0.122      
6 H 0.329      
7 H 0.329      


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 -0.262 0.262
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.397 -3.322 0.000
y -3.322 -21.940 0.000
z 0.000 0.000 -15.863
Traceless
 xyz
x 3.505 -3.322 0.000
y -3.322 -6.310 0.000
z 0.000 0.000 2.806
Polar
3z2-r25.612
x2-y26.543
xy-3.322
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.784 -0.124 0.000
y -0.124 2.754 0.000
z 0.000 0.000 2.839


<r2> (average value of r2) Å2
<r2> 44.127
(<r2>)1/2 6.643