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

using model chemistry: BLYP/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 BLYP/6-31G(2df,p)
 hartrees
Energy at 0K-190.908302
Energy at 298.15K-190.913477
HF Energy-190.908302
Nuclear repulsion energy80.590493
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 BLYP/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 3640 3620 6.85      
2 A 2922 2906 67.55      
3 A 1481 1473 0.79      
4 A 1368 1361 3.02      
5 A 1174 1167 1.96      
6 A 982 976 82.00      
7 A 545 542 61.39      
8 A 371 369 36.39      
9 B 3640 3620 12.52      
10 B 2964 2948 59.28      
11 B 1413 1405 65.36      
12 B 1342 1335 19.26      
13 B 1004 998 227.58      
14 B 986 980 1.64      
15 B 395 392 155.31      

Unscaled Zero Point Vibrational Energy (zpe) 12112.8 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 12046.2 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 BLYP/6-31G(2df,p)
ABC
1.37318 0.33208 0.29446

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.533
O2 0.000 1.187 -0.248
O3 0.000 -1.187 -0.248
H4 -0.899 -0.086 1.171
H5 0.899 0.086 1.171
H6 -0.813 1.164 -0.785
H7 0.813 -1.164 -0.785

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6 H7
C11.42111.42111.10571.10571.93801.9380
O21.42112.37352.10812.00840.97512.5448
O31.42112.37352.00842.10812.54480.9751
H41.10572.10812.00841.80652.32352.8146
H51.10572.00842.10811.80652.81462.3235
H61.93800.97512.54482.32352.81462.8400
H71.93802.54480.97512.81462.32352.8400

picture of methanediol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 H6 106.465 C1 O3 H7 106.465
O2 C1 O3 113.259 O2 C1 H4 112.488
O2 C1 H5 104.595 O3 C1 H4 104.595
O3 C1 H5 112.488 H4 C1 H5 109.557
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.010      
2 O -0.347      
3 O -0.347      
4 H 0.089      
5 H 0.089      
6 H 0.263      
7 H 0.263      


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 -0.338 0.338
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.665 -3.010 0.000
y -3.010 -21.659 0.000
z 0.000 0.000 -16.364
Traceless
 xyz
x 3.346 -3.010 0.000
y -3.010 -5.644 0.000
z 0.000 0.000 2.298
Polar
3z2-r24.596
x2-y25.993
xy-3.010
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.144 -0.211 0.000
y -0.211 3.286 0.000
z 0.000 0.000 3.227


<r2> (average value of r2) Å2
<r2> 46.047
(<r2>)1/2 6.786