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All results from a given calculation for H2OHCOOH (Water formic acid dimer 1)

using model chemistry: B3LYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/6-31G(2df,p)
 hartrees
Energy at 0K-266.208950
Energy at 298.15K-266.212873
HF Energy-266.208950
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy117.142807
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 B3LYP/6-31G(2df,p)
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 3891 3754 64.21      
2 A 3789 3656 21.75      
3 A 3733 3603 52.45      
4 A 3079 2971 11.02      
5 A 1851 1786 293.66      
6 A 1675 1617 61.98      
7 A 1410 1360 12.82      
8 A 1290 1245 4.74      
9 A 1118 1079 244.35      
10 A 1086 1048 1.65      
11 A 676 652 131.24      
12 A 627 605 43.12      
13 A 450 434 209.21      
14 A 232 224 96.62      
15 A 191 184 66.23      
16 A 144 139 0.41      
17 A 104 100 12.32      
18 A 80 77 7.41      

Unscaled Zero Point Vibrational Energy (zpe) 12711.9 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 12267.0 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 B3LYP/6-31G(2df,p)
ABC
0.64964 0.09617 0.08443

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.869 0.490 -0.157
O2 2.395 -0.317 -0.098
O3 -0.252 0.942 0.014
H4 2.750 -0.296 0.796
H5 -0.968 1.595 -0.012
C6 -0.812 -0.289 0.005
O7 -1.990 -0.503 -0.001
H8 -0.002 -1.031 0.020

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 O7 H8
H10.96462.17541.51713.04842.79673.98802.4177
O20.96462.93280.96233.86923.20864.38982.5038
O32.17542.93283.33990.96961.35222.26041.9881
H41.51710.96233.33994.24893.64934.81152.9530
H53.04843.86920.96964.24891.89002.33342.7974
C62.79673.20861.35223.64931.89001.19741.0982
O73.98804.38982.26044.81152.33341.19742.0567
H82.41772.50381.98812.95302.79741.09822.0567

picture of Water formic acid dimer 1 state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 O2 H4 103.874 H1 O3 H5 149.109
H1 O3 C6 102.374 O2 H1 O3 134.438
O3 C6 O7 124.788 O3 C6 H8 108.003
H5 O3 C6 107.847 O7 C6 H8 127.202
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability