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

using model chemistry: B3LYPultrafine_cp_opt/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_cp_opt/6-31+G**
 hartrees
Energy at 0K-190.953137
Energy at 298.15K-190.955918
Nuclear repulsion energy31.127249
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/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 3765 105.27      
2 A 3710 3577 228.17      
3 A 3031 2922 70.60      
4 A 2947 2841 55.13      
5 A 1802 1737 105.43      
6 A 1624 1566 105.89      
7 A 1534 1479 18.62      
8 A 1270 1224 7.98      
9 A 1204 1161 5.78      
10 A 514 495 133.83      
11 A 362 349 142.17      
12 A 182 175 32.68      
13 A 168 162 0.01      
14 A 71 69 50.09      
15 A 57 55 182.81      

Unscaled Zero Point Vibrational Energy (zpe) 11190.2 cm-1
Scaled (by 0.964) Zero Point Vibrational Energy (zpe) 10787.3 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/6-31+G**
ABC
1.34129 0.15999 0.14294

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine_cp_opt/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.081 -0.400 -0.000
O2 1.857 0.186 -0.000
O3 -0.903 -0.673 -0.000
H4 2.632 -0.387 0.001
C5 -1.362 0.452 0.000
H6 -0.709 1.343 0.000
H7 -2.455 0.624 -0.000

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 H6 H7
H10.97222.00311.55082.58752.49833.6810
O20.97222.89070.96383.23012.81464.3336
O32.00312.89073.54681.21432.02472.0219
H41.55080.96383.54684.08123.76225.1860
C52.58753.23011.21434.08121.10481.1058
H62.49832.81462.02473.76221.10481.8876
H73.68104.33362.02195.18601.10581.8876

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 106.461 H1 O3 C5 104.380
O2 H1 O3 150.762 O3 C5 H6 121.552
O3 C5 H7 121.180 H6 C5 H7 117.269
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine_cp_opt/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.321      
4 H 0.000      
5 C 0.091      
6 H 0.115      
7 H 0.115      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.402 0.349 0.001 1.445
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 2.416 0.302 -0.000
y 0.302 3.055 0.000
z -0.000 0.000 1.354


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