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

using model chemistry: CCD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at CCD/cc-pVDZ
 hartrees
Energy at 0K-190.452894
Energy at 298.15K-190.456079
Counterpoise corrected energy-190.452894
CP Energy at 298.15K-190.456079
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy68.702458
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 CCD/cc-pVDZ
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 3945 3774 69.20      
2 A 3842 3675 60.31      
3 A 3095 2961 65.56      
4 A 2994 2864 55.61      
5 A 1837 1757 70.05      
6 A 1722 1647 51.62      
7 A 1544 1477 9.92      
8 A 1288 1232 10.12      
9 A 1220 1167 3.44      
10 A 530 507 208.43      
11 A 304 290 53.95      
12 A 229 219 54.03      
13 A 180 172 16.69      
14 A 175 167 109.02      
15 A 161 154 19.44      

Unscaled Zero Point Vibrational Energy (zpe) 11531.4 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 11032.1 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 CCD/cc-pVDZ
ABC
1.21395 0.16757 0.14931

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.098 -0.504 -0.156
O2 1.845 0.108 -0.093
O3 -0.976 -0.682 0.001
H4 2.157 -0.043 0.806
C5 -1.244 0.500 0.010
H6 -0.447 1.276 -0.026
H7 -2.299 0.857 0.054

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 H6 H7
H10.96752.08761.50302.55332.36023.6658
O20.96752.93100.96413.11512.57334.2140
O32.08762.93103.29741.21192.02752.0300
H41.50300.96413.29743.53483.03544.6083
C52.55333.11511.21193.53481.11201.1152
H62.36022.57332.02753.03541.11201.9006
H73.66584.21402.03004.60831.11521.9006

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 102.176 H1 O3 C5 97.865
O2 H1 O3 144.692 O3 C5 H6 121.434
O3 C5 H7 121.411 H6 C5 H7 117.155
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability