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

using model chemistry: HF/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 HF/6-311+G(3df,2pd)
 hartrees
Energy at 0K-189.978639
Energy at 298.15K-189.981308
Counterpoise corrected energy-189.978262
CP Energy at 298.15K-189.980887
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy68.338900
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 HF/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 4230 3832 150.26      
2 A 4102 3716 131.75      
3 A 3187 2887 64.68      
4 A 3105 2814 58.51      
5 A 1984 1798 156.23      
6 A 1764 1598 97.58      
7 A 1650 1495 32.16      
8 A 1376 1247 19.26      
9 A 1348 1221 3.75      
10 A 472 427 123.27      
11 A 334 303 103.12      
12 A 158 143 29.20      
13 A 148 134 0.00      
14 A 64 58 48.71      
15 A 60 54 154.81      

Unscaled Zero Point Vibrational Energy (zpe) 11991.1 cm-1
Scaled (by 0.906) Zero Point Vibrational Energy (zpe) 10863.9 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 HF/6-311+G(3df,2pd)
ABC
1.42648 0.15041 0.13607

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.162 -0.386 -0.000
O2 1.918 0.179 -0.000
O3 -0.941 -0.651 -0.000
H4 2.673 -0.380 0.003
C5 -1.401 0.436 0.000
H6 -0.771 1.326 0.001
H7 -2.480 0.599 -0.000

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 H6 H7
H10.94412.11931.51092.69202.58293.7731
O20.94412.97690.93923.32942.92414.4184
O32.11932.97693.62371.18051.98441.9828
H41.51090.93923.62374.15513.84385.2453
C52.69203.32941.18054.15511.09051.0912
H62.58292.92411.98443.84381.09051.8573
H73.77314.41841.98285.24531.09121.8573

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 106.694 H1 O3 C5 105.794
O2 H1 O3 150.389 O3 C5 H6 121.758
O3 C5 H7 121.532 H6 C5 H7 116.711
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2pd) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.221      
2 O -0.338      
3 O -0.625      
4 H 0.117      
5 C 0.513      
6 H 0.070      
7 H 0.043      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.406 0.672 0.006 1.558
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.365 -6.853 0.016
y -6.853 -18.656 -0.003
z 0.016 -0.003 -19.126
Traceless
 xyz
x 5.526 -6.853 0.016
y -6.853 -2.410 -0.003
z 0.016 -0.003 -3.116
Polar
3z2-r2-6.231
x2-y25.291
xy-6.853
xz0.016
yz-0.003


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.954 -0.323 0.000
y -0.323 3.749 0.000
z 0.000 0.000 2.651


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