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

using model chemistry: B3LYPultrafine_cp_opt/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 B3LYPultrafine_cp_opt/aug-cc-pVTZ
 hartrees
Energy at 0K-191.025179
Energy at 298.15K-191.027920
Nuclear repulsion energy31.329191
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_cp_opt/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 3875 3759 97.19      
2 A 3683 3572 270.81      
3 A 2990 2900 66.95      
4 A 2916 2829 64.83      
5 A 1797 1743 104.29      
6 A 1645 1595 79.47      
7 A 1529 1483 22.99      
8 A 1271 1233 9.78      
9 A 1209 1173 5.92      
10 A 516 501 80.32      
11 A 363 352 105.15      
12 A 179 174 29.67      
13 A 163 158 0.06      
14 A 64 62 38.23      
15 A 41 39 133.05      

Unscaled Zero Point Vibrational Energy (zpe) 11120.4 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 10786.8 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_cp_opt/aug-cc-pVTZ
ABC
1.38761 0.15864 0.14236

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine_cp_opt/aug-cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.075 -0.366 0.000
O2 1.868 0.191 0.000
O3 -0.886 -0.661 -0.000
H4 2.612 -0.415 0.000
C5 -1.383 0.436 -0.000
H6 -0.766 1.350 -0.000
H7 -2.478 0.570 -0.000

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 H6 H7
H10.96931.98261.53862.58522.51723.6738
O20.96932.88250.96063.25962.87774.3619
O31.98262.88253.50701.20472.01492.0125
H41.53860.96063.50704.08503.81235.1847
C52.58523.25961.20474.08501.10241.1032
H62.51722.87772.01493.81231.10241.8808
H73.67384.36192.01255.18471.10321.8808

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 105.726 H1 O3 C5 105.805
O2 H1 O3 153.437 O3 C5 H6 121.646
O3 C5 H7 121.324 H6 C5 H7 117.030
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine_cp_opt/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.425      
4 H 0.000      
5 C -0.277      
6 H 0.352      
7 H 0.350      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.592 0.456 0.000 1.656
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 2.821 -0.246 0.000
y -0.246 3.253 0.000
z 0.000 0.000 1.941


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