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

using model chemistry: LSDA/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-190.021688
Energy at 298.15K-190.026932
HF Energy-190.021688
Nuclear repulsion energy81.632690
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/6-31+G**
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 3712 3656 23.34      
2 A 2959 2914 56.82      
3 A 1457 1435 0.02      
4 A 1330 1310 2.41      
5 A 1166 1149 0.00      
6 A 1046 1031 105.55      
7 A 575 566 99.19      
8 A 402 396 43.80      
9 B 3712 3657 43.09      
10 B 3011 2966 37.79      
11 B 1381 1361 57.61      
12 B 1307 1288 20.95      
13 B 1093 1076 282.08      
14 B 973 958 24.49      
15 B 400 394 221.72      

Unscaled Zero Point Vibrational Energy (zpe) 12261.4 cm-1
Scaled (by 0.985) Zero Point Vibrational Energy (zpe) 12077.5 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 LSDA/6-31+G**
ABC
1.39269 0.34418 0.30495

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.526
O2 0.000 1.163 -0.245
O3 0.000 -1.163 -0.245
H4 -0.900 -0.083 1.166
H5 0.900 0.083 1.166
H6 -0.816 1.169 -0.783
H7 0.816 -1.169 -0.783

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.39491.39491.10751.10751.93531.9353
O21.39492.32512.08621.99150.97732.5282
O31.39492.32511.99152.08622.52820.9773
H41.10752.08621.99151.80782.31792.8146
H51.10751.99152.08621.80782.81462.3179
H61.93530.97732.52822.31792.81462.8513
H71.93532.52820.97732.81462.31792.8513

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 108.045 C1 O3 H7 108.045
O2 C1 O3 112.902 O2 C1 H4 112.445
O2 C1 H5 104.884 O3 C1 H4 104.884
O3 C1 H5 112.445 H4 C1 H5 109.406
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.053      
2 O -0.503      
3 O -0.503      
4 H 0.164      
5 H 0.164      
6 H 0.366      
7 H 0.366      


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 -0.239 0.239
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.099 -3.839 0.000
y -3.839 -23.305 0.000
z 0.000 0.000 -16.899
Traceless
 xyz
x 4.003 -3.839 0.000
y -3.839 -6.806 0.000
z 0.000 0.000 2.804
Polar
3z2-r25.607
x2-y27.206
xy-3.839
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.426 -0.139 0.000
y -0.139 3.878 0.000
z 0.000 0.000 3.670


<r2> (average value of r2) Å2
<r2> 45.610
(<r2>)1/2 6.754