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

using model chemistry: PBEPBE_cp/6-311+G(3df,2pd)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBE_cp/6-311+G(3df,2pd)
 hartrees
Energy at 0K-190.799065
Energy at 298.15K-190.791882
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 PBEPBE/6-311+G(3df,2pd)
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 3802 3764 77.62      
2 A 3575 3540 311.82      
3 A 2903 2874 71.99      
4 A 2832 2804 73.39      
5 A 1749 1731 90.88      
6 A 1612 1595 71.50      
7 A 1478 1464 18.25      
8 A 1230 1218 6.71      
9 A 1161 1149 6.70      
10 A 539 534 84.83      
11 A 368 364 105.16      
12 A 185 183 30.60      
13 A 174 172 0.03      
14 A 76 76 38.48      
15 A 50 49 126.51      

Unscaled Zero Point Vibrational Energy (zpe) 10866.6 cm-1
Scaled (by 0.99) Zero Point Vibrational Energy (zpe) 10757.9 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/6-311+G(3df,2pd)
ABC
1.34111 0.16217 0.14485

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311+G(3df,2pd)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.047 -0.373 -0.015
O2 1.849 0.187 -0.033
O3 -0.888 -0.671 -0.008
H4 2.570 -0.405 0.224
C5 -1.357 0.447 0.012
H6 -0.708 1.352 0.044
H7 -2.458 0.613 0.000

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 H6 H7
H10.97851.95741.54222.53982.46133.6412
O20.97852.86810.96773.21632.81064.3282
O31.95742.86813.47581.21302.03142.0287
H41.54220.96773.47584.02363.72345.1352
C52.53983.21631.21304.02361.11321.1141
H62.46132.81062.03143.72341.11321.9002
H73.64124.32822.02875.13521.11411.9002

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 PBEPBE/6-311+G(3df,2pd) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.248      
2 O -0.409      
3 O -0.478      
4 H 0.148      
5 C 0.350      
6 H 0.084      
7 H 0.057      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.560 0.414 0.465 1.680
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