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

using model chemistry: B3PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3PW91/6-311G**
 hartrees
Energy at 0K-190.933971
Energy at 298.15K-190.939255
HF Energy-190.933971
Nuclear repulsion energy81.660178
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 B3PW91/6-311G**
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 3841 3699 20.84      
2 A 3026 2914 70.99      
3 A 1526 1470 0.55      
4 A 1402 1350 3.65      
5 A 1215 1170 1.15      
6 A 1054 1015 107.49      
7 A 577 556 87.94      
8 A 399 384 43.33      
9 B 3841 3699 37.00      
10 B 3073 2959 59.27      
11 B 1457 1403 66.29      
12 B 1374 1323 26.05      
13 B 1091 1051 251.17      
14 B 1021 983 12.63      
15 B 404 389 192.58      

Unscaled Zero Point Vibrational Energy (zpe) 12649.8 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 12183.1 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 B3PW91/6-311G**
ABC
1.40093 0.34220 0.30297

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.528
O2 0.000 1.168 -0.246
O3 0.000 -1.168 -0.246
H4 -0.891 -0.078 1.161
H5 0.891 0.078 1.161
H6 -0.802 1.158 -0.778
H7 0.802 -1.158 -0.778

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.40121.40121.09621.09621.92041.9204
O21.40122.33632.08031.99080.96212.5169
O31.40122.33631.99082.08032.51690.9621
H41.09622.08031.99081.78912.30122.7915
H51.09621.99082.08031.78912.79152.3012
H61.92040.96212.51692.30122.79152.8163
H71.92042.51690.96212.79152.30122.8163

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 107.232 C1 O3 H7 107.232
O2 C1 O3 112.954 O2 C1 H4 112.237
O2 C1 H5 105.064 O3 C1 H4 105.064
O3 C1 H5 112.237 H4 C1 H5 109.390
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.112      
2 O -0.398      
3 O -0.398      
4 H 0.107      
5 H 0.107      
6 H 0.235      
7 H 0.235      


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 -0.249 0.249
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.517 -3.398 0.000
y -3.398 -22.254 0.000
z 0.000 0.000 -16.108
Traceless
 xyz
x 3.665 -3.398 0.000
y -3.398 -6.442 0.000
z 0.000 0.000 2.778
Polar
3z2-r25.556
x2-y26.738
xy-3.398
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.925 -0.168 0.000
y -0.168 3.043 0.000
z 0.000 0.000 3.009


<r2> (average value of r2) Å2
<r2> 45.165
(<r2>)1/2 6.720