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

using model chemistry: B3LYPultrafine_cp_opt/3-21G

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/3-21G
 hartrees
Energy at 0K-189.842478
Energy at 298.15K-189.845164
Nuclear repulsion energy30.819009
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/3-21G
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 3530 3406 23.50      
2 A 3368 3250 149.94      
3 A 2998 2893 130.91      
4 A 2938 2835 33.44      
5 A 1748 1687 54.47      
6 A 1724 1664 43.97      
7 A 1569 1515 21.81      
8 A 1280 1235 8.76      
9 A 1223 1181 6.91      
10 A 522 504 196.22      
11 A 352 340 116.25      
12 A 176 170 20.86      
13 A 147 142 3.87      
14 A 71 69 132.25      
15 A 27 26 27.26      

Unscaled Zero Point Vibrational Energy (zpe) 10836.9 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 10457.6 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/3-21G
ABC
1.54981 0.13872 0.12732

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine_cp_opt/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.095 -0.186 -0.001
O2 -2.011 0.218 -0.000
O3 0.832 -0.620 -0.000
H4 -2.623 -0.566 0.003
C5 1.555 0.376 0.000
H6 1.157 1.403 0.001
H7 2.656 0.311 0.000

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 H6 H7
H11.00121.97541.57492.70902.75603.7834
O21.00122.96410.99523.56953.38174.6674
O31.97542.96413.45591.23062.04952.0475
H41.57490.99523.45594.28334.26215.3513
C52.70903.56951.23064.28331.10261.1023
H62.75603.38172.04954.26211.10261.8551
H73.78344.66742.04755.35131.10231.8551

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 104.154 H1 O3 C5 113.293
O2 H1 O3 168.862 O3 C5 H6 122.811
O3 C5 H7 122.621 H6 C5 H7 114.568
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine_cp_opt/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.376      
4 H 0.000      
5 C 0.051      
6 H 0.163      
7 H 0.162      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.708 -0.249 0.007 2.719
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 1.843 -0.110 -0.041
y -0.110 2.452 -0.009
z -0.041 -0.009 0.770


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