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

using model chemistry: PBEPBE/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 PBEPBE/6-31G
 hartrees
Energy at 0K-190.662631
Energy at 298.15K-190.667845
HF Energy-190.662631
Nuclear repulsion energy79.371704
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 PBEPBE/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 3495 3447 1.13      
2 A 2996 2955 59.21      
3 A 1503 1482 0.10      
4 A 1358 1339 2.76      
5 A 1166 1149 2.69      
6 A 948 935 101.08      
7 A 543 536 143.57      
8 A 402 396 29.01      
9 B 3497 3449 4.76      
10 B 3059 3016 50.02      
11 B 1406 1386 36.24      
12 B 1331 1313 16.91      
13 B 973 960 3.54      
14 B 968 955 255.97      
15 B 429 423 230.40      

Unscaled Zero Point Vibrational Energy (zpe) 12036.4 cm-1
Scaled (by 0.9862) Zero Point Vibrational Energy (zpe) 11870.3 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 PBEPBE/6-31G
ABC
1.34727 0.31995 0.28427

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.543
O2 0.000 1.207 -0.251
O3 0.000 -1.207 -0.251
H4 -0.901 -0.097 1.171
H5 0.901 0.097 1.171
H6 -0.831 1.229 -0.790
H7 0.831 -1.229 -0.790

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.44451.44451.10261.10261.99451.9945
O21.44452.41382.12942.01660.99062.6298
O31.44452.41382.01662.12942.62980.9906
H41.10262.12942.01661.81162.36892.8509
H51.10262.01662.12941.81162.85092.3689
H61.99450.99062.62982.36892.85092.9672
H71.99452.62980.99062.85092.36892.9672

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 108.540 C1 O3 H7 108.540
O2 C1 O3 113.341 O2 C1 H4 112.749
O2 C1 H5 103.881 O3 C1 H4 103.881
O3 C1 H5 112.749 H4 C1 H5 110.472
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.056      
2 O -0.555      
3 O -0.555      
4 H 0.170      
5 H 0.170      
6 H 0.357      
7 H 0.357      


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 -0.219 0.219
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.662 -4.197 0.000
y -4.197 -22.859 0.000
z 0.000 0.000 -16.139
Traceless
 xyz
x 3.837 -4.197 0.000
y -4.197 -6.958 0.000
z 0.000 0.000 3.121
Polar
3z2-r26.242
x2-y27.197
xy-4.197
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.819 -0.208 0.000
y -0.208 3.042 0.000
z 0.000 0.000 2.761


<r2> (average value of r2) Å2
<r2> 47.498
(<r2>)1/2 6.892