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

using model chemistry: PBEPBEultrafine/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBEultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-190.805107
Energy at 298.15K-190.807853
Counterpoise corrected energy-190.805002
CP Energy at 298.15K-190.807758
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy68.303772
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 PBEPBEultrafine/aug-cc-pVTZ
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 3774 3732 75.95      
2 A 3541 3501 326.43      
3 A 2897 2865 73.81      
4 A 2830 2798 74.36      
5 A 1741 1721 90.60      
6 A 1609 1591 74.44      
7 A 1476 1460 19.36      
8 A 1227 1213 6.76      
9 A 1158 1145 6.88      
10 A 529 523 67.81      
11 A 371 367 104.24      
12 A 182 180 31.02      
13 A 170 168 0.10      
14 A 74 73 35.86      
15 A 23 23 122.73      

Unscaled Zero Point Vibrational Energy (zpe) 10800.1 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 10679.1 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 PBEPBEultrafine/aug-cc-pVTZ
ABC
1.34661 0.16203 0.14463

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/aug-cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.046 -0.369 -0.000
O2 1.848 0.193 -0.000
O3 -0.882 -0.671 -0.000
H4 2.589 -0.431 0.001
C5 -1.362 0.445 0.000
H6 -0.723 1.356 0.000
H7 -2.466 0.599 0.000

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 H6 H7
H10.97991.95171.54452.54202.47033.6425
O20.97992.86420.96893.22042.82134.3329
O31.95172.86423.47981.21462.03302.0300
H41.54450.96893.47984.04743.76305.1587
C52.54203.22041.21464.04741.11321.1140
H62.47032.82132.03303.76301.11321.9000
H73.64254.33292.03005.15871.11401.9000

picture of water formaldehyde dimer state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 O2 H4 104.845 H1 O3 C5 104.375
O2 H1 O3 153.869 O3 C5 H6 121.644
O3 C5 H7 121.260 H6 C5 H7 117.096
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.244      
2 O -0.393      
3 O -0.394      
4 H 0.151      
5 C -0.310      
6 H 0.345      
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
  -1.567 0.386 0.001 1.614
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 5.185 -0.386 0.000
y -0.386 4.558 0.000
z 0.000 0.000 3.378


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