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

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/6-311+G(3df,2pd)
 hartrees
Energy at 0K-191.021228
Energy at 298.15K-191.023980
Counterpoise corrected energy-191.020828
CP Energy at 298.15K-191.023560
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy68.428935
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/6-311+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 3901 3784 98.39      
2 A 3713 3601 269.28      
3 A 2992 2902 66.03      
4 A 2915 2828 63.48      
5 A 1805 1751 104.10      
6 A 1647 1598 79.14      
7 A 1531 1485 22.47      
8 A 1274 1236 9.82      
9 A 1212 1175 5.86      
10 A 528 512 90.75      
11 A 366 355 109.59      
12 A 182 177 28.98      
13 A 166 161 0.01      
14 A 66 64 40.10      
15 A 38 37 139.20      

Unscaled Zero Point Vibrational Energy (zpe) 11167.8 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 10832.8 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/6-311+G(3df,2pd)
ABC
1.38875 0.15883 0.14253

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-311+G(3df,2pd)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.073 -0.364 -0.000
O2 -1.867 0.191 -0.000
O3 0.887 -0.661 -0.000
H4 -2.609 -0.417 0.001
C5 1.381 0.436 0.000
H6 0.762 1.349 0.000
H7 2.475 0.573 -0.000

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 H6 H7
H10.96831.98241.53692.58082.51013.6699
O20.96832.88250.95963.25672.87274.3590
O31.98242.88253.50441.20312.01362.0113
H41.53690.95963.50444.07993.80585.1799
C52.58083.25671.20314.07991.10241.1032
H62.51012.87272.01363.80581.10241.8807
H73.66994.35902.01135.17991.10321.8807

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 105.721 H1 O3 C5 105.604
O2 H1 O3 153.683 O3 C5 H6 121.644
O3 C5 H7 121.343 H6 C5 H7 117.013
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-311+G(3df,2pd) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.261      
2 O -0.436      
3 O -0.487      
4 H 0.165      
5 C 0.315      
6 H 0.103      
7 H 0.079      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.589 0.429 0.003 1.646
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 4.632 0.363 -0.000
y 0.363 4.098 0.000
z -0.000 0.000 2.956


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