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

using model chemistry: LSDA/6-31G*

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*
 hartrees
Energy at 0K-189.990306
Energy at 298.15K-189.995587
HF Energy-189.990306
Nuclear repulsion energy81.818284
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*
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 3643 3575 11.68      
2 A 2945 2890 69.02      
3 A 1488 1460 0.31      
4 A 1366 1340 3.04      
5 A 1188 1166 0.01      
6 A 1059 1040 106.47      
7 A 591 580 98.31      
8 A 395 388 28.08      
9 B 3644 3575 19.52      
10 B 2990 2934 59.62      
11 B 1410 1384 82.00      
12 B 1341 1316 19.67      
13 B 1122 1101 222.64      
14 B 995 976 24.42      
15 B 429 421 216.27      

Unscaled Zero Point Vibrational Energy (zpe) 12302.8 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 12072.8 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*
ABC
1.39225 0.34714 0.30687

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.525
O2 0.000 1.160 -0.243
O3 0.000 -1.160 -0.243
H4 -0.897 -0.090 1.172
H5 0.897 0.090 1.172
H6 -0.806 1.124 -0.799
H7 0.806 -1.124 -0.799

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.39141.39141.10971.10971.91481.9148
O21.39142.32052.09061.98780.97992.4855
O31.39142.32051.98782.09062.48550.9799
H41.10972.09061.98781.80332.31682.8025
H51.10971.98782.09061.80332.80252.3168
H61.91480.97992.48552.31682.80252.7666
H71.91482.48550.97992.80252.31682.7666

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 106.406 C1 O3 H7 106.406
O2 C1 O3 112.996 O2 C1 H4 112.934
O2 C1 H5 104.704 O3 C1 H4 104.704
O3 C1 H5 112.934 H4 C1 H5 108.689
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.013      
2 O -0.557      
3 O -0.557      
4 H 0.164      
5 H 0.164      
6 H 0.399      
7 H 0.399      


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 -0.522 0.522
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.668 -3.316 0.000
y -3.316 -22.078 0.000
z 0.000 0.000 -16.120
Traceless
 xyz
x 3.431 -3.316 0.000
y -3.316 -6.184 0.000
z 0.000 0.000 2.753
Polar
3z2-r25.506
x2-y26.410
xy-3.316
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.934 -0.167 0.000
y -0.167 2.898 0.000
z 0.000 0.000 2.998


<r2> (average value of r2) Å2
<r2> 44.829
(<r2>)1/2 6.695