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All results from a given calculation for H2OH2CO (water formaldehyde dimer)

using model chemistry: B3LYPultrafine_cp/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYPultrafine_cp/6-31G*
 hartrees
Energy at 0K-190.915488
Energy at 298.15K-190.908770
Nuclear repulsion energy 
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 B3LYPultrafine/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 3812 3652 58.83      
2 A 3663 3509 125.23      
3 A 3045 2918 63.67      
4 A 2957 2833 71.66      
5 A 1819 1742 90.00      
6 A 1735 1662 68.25      
7 A 1545 1480 13.85      
8 A 1282 1228 5.77      
9 A 1215 1164 2.64      
10 A 614 588 246.05      
11 A 329 315 70.57      
12 A 238 228 53.38      
13 A 202 193 37.94      
14 A 187 179 86.33      
15 A 156 149 28.86      

Unscaled Zero Point Vibrational Energy (zpe) 11398.9 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 10920.1 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 B3LYPultrafine/6-31G*
ABC
1.22831 0.17243 0.15323

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.045 -0.482 -0.133
O2 1.814 0.116 -0.095
O3 -0.943 -0.681 -0.000
H4 2.203 -0.065 0.774
C5 -1.241 0.494 0.013
H6 -0.470 1.284 0.003
H7 -2.299 0.821 0.036

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 H6 H7
H10.97482.00271.52822.49042.33113.5931
O20.97482.87180.96853.08052.56734.1751
O32.00272.87183.29771.21282.02192.0240
H41.52820.96853.29773.57063.09094.6466
C52.49043.08051.21283.57061.10431.1074
H62.33112.56732.02193.09091.10431.8872
H73.59314.17512.02404.64661.10741.8872

picture of water formaldehyde dimer state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.408      
2 O -0.811      
3 O -0.346      
4 H 0.381      
5 C 0.071      
6 H 0.161      
7 H 0.137      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.550 0.984 1.462 2.348
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000