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

using model chemistry: wB97X-D/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 wB97X-D/3-21G*
 hartrees
Energy at 0K-189.799202
Energy at 298.15K-189.803186
HF Energy-189.799202
Nuclear repulsion energy70.534829
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 wB97X-D/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 3672 3480 27.60      
2 A 3485 3303 112.64      
3 A 3121 2958 27.92      
4 A 3008 2851 66.09      
5 A 1736 1645 22.26      
6 A 1731 1640 74.66      
7 A 1564 1483 29.66      
8 A 1293 1226 1.78      
9 A 1259 1193 11.47      
10 A 777 736 375.36      
11 A 412 391 54.16      
12 A 345 327 98.54      
13 A 305 289 107.61      
14 A 259 245 61.12      
15 A 250 237 29.59      

Unscaled Zero Point Vibrational Energy (zpe) 11607.3 cm-1
Scaled (by 0.9478) Zero Point Vibrational Energy (zpe) 11001.4 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 wB97X-D/3-21G*
ABC
1.16006 0.19699 0.17118

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.063 -0.487 -0.057
O2 1.823 0.134 -0.081
O3 -0.967 -0.691 -0.006
H4 2.487 -0.171 0.572
C5 -1.265 0.496 0.019
H6 -0.498 1.285 0.034
H7 -2.309 0.848 0.029

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 H6 H7
H10.98212.04101.58822.52772.36293.6281
O20.98212.91080.97933.11052.59314.1952
O32.04102.91083.54031.22342.03062.0422
H41.58820.97933.54033.85013.36414.9332
C52.52773.11051.22343.85011.10011.1026
H62.36292.59312.03063.36411.10011.8632
H73.62814.19522.04224.93321.10261.8632

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 108.132 H1 O3 C5 98.369
O2 H1 O3 146.483 O3 C5 H6 121.752
O3 C5 H7 122.712 H6 C5 H7 115.535
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.358      
2 O -0.705      
3 O -0.415      
4 H 0.336      
5 C 0.008      
6 H 0.223      
7 H 0.196      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.255 1.060 1.658 2.334
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.496 -4.038 3.777
y -4.038 -18.093 0.231
z 3.777 0.231 -16.775
Traceless
 xyz
x -1.062 -4.038 3.777
y -4.038 -0.457 0.231
z 3.777 0.231 1.520
Polar
3z2-r23.040
x2-y2-0.403
xy-4.038
xz3.777
yz0.231


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.029 -0.230 0.264
y -0.230 2.759 -0.024
z 0.264 -0.024 1.444


<r2> (average value of r2) Å2
<r2> 67.322
(<r2>)1/2 8.205