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

using model chemistry: B3LYPultrafine/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-190.953674
Energy at 298.15K-190.956526
Counterpoise corrected energy-190.953137
CP Energy at 298.15K-190.955918
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy68.480734
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/6-31+G**
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 3905 3759 104.71      
2 A 3703 3565 229.36      
3 A 3033 2920 66.36      
4 A 2947 2837 57.61      
5 A 1801 1734 103.09      
6 A 1622 1562 106.34      
7 A 1532 1475 20.35      
8 A 1270 1223 7.99      
9 A 1204 1159 5.70      
10 A 523 503 130.94      
11 A 372 358 141.89      
12 A 189 182 30.21      
13 A 177 170 0.01      
14 A 75 72 50.97      
15 A 69 66 182.02      

Unscaled Zero Point Vibrational Energy (zpe) 11210.1 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 10791.9 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 B3LYPultrafine/6-31+G**
ABC
1.33424 0.16361 0.14574

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.068 -0.414 -0.000
O2 -1.834 0.185 -0.000
O3 0.897 -0.674 -0.000
H4 -2.619 -0.374 0.003
C5 1.345 0.454 0.000
H6 0.682 1.338 0.001
H7 2.435 0.637 -0.000

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 H6 H7
H10.97261.98201.55172.56462.47683.6579
O20.97262.86290.96383.19032.76784.2934
O31.98202.86293.52881.21442.02402.0217
H41.55170.96383.52884.04973.71885.1548
C52.56463.19031.21444.04971.10471.1058
H62.47682.76782.02403.71881.10471.8885
H73.65794.29342.02175.15481.10581.8885

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 106.508 H1 O3 C5 104.115
O2 H1 O3 149.493 O3 C5 H6 121.479
O3 C5 H7 121.151 H6 C5 H7 117.370
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.385      
2 O -0.763      
3 O -0.348      
4 H 0.358      
5 C 0.092      
6 H 0.150      
7 H 0.125      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.344 0.365 0.007 1.393
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 4.179 0.390 -0.000
y 0.390 3.800 0.000
z -0.000 0.000 2.380


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