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All results from a given calculation for H2OHCOOH (Water formic acid dimer 2)

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-266.212302
Energy at 298.15K-266.216580
HF Energy-266.212302
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy117.917619
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 3874 3739 61.79      
2 A 3732 3601 58.78      
3 A 3727 3596 129.09      
4 A 3092 2983 14.35      
5 A 1812 1749 326.00      
6 A 1687 1628 59.31      
7 A 1399 1350 3.61      
8 A 1333 1286 13.72      
9 A 1152 1111 219.95      
10 A 1092 1054 1.23      
11 A 705 681 133.24      
12 A 640 618 22.59      
13 A 583 563 301.59      
14 A 288 278 69.71      
15 A 233 224 93.79      
16 A 179 172 2.07      
17 A 105 101 13.89      
18 A 101 98 7.79      

Unscaled Zero Point Vibrational Energy (zpe) 12866.3 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 12416.0 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
0.76804 0.09568 0.08573

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 -1.758 0.436 -0.122
O2 -2.394 -0.295 -0.092
O3 0.204 0.950 0.002
H4 -2.771 -0.235 0.790
C5 0.652 -0.169 -0.005
O6 1.956 -0.466 0.011
H7 0.041 -1.080 -0.026
H8 2.442 0.375 0.025

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 O6 H7 H8
H10.96852.03261.51932.48833.82452.35484.2036
O20.96852.88210.96183.04994.35422.55924.8833
O32.03262.88213.29811.20562.25242.03652.3109
H41.51930.96183.29813.51554.79663.04805.3044
C52.48833.04991.20563.51551.33701.09691.8707
O63.82454.35422.25244.79661.33702.01110.9710
H72.35482.55922.03653.04801.09692.01112.8075
H84.20364.88332.31095.30441.87070.97102.8075

picture of Water formic acid dimer 2 state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 O2 H4 103.824 H1 O3 C5 97.110
O2 H1 O3 145.306 O3 C5 O6 124.639
O3 C5 H7 124.304 C5 O6 H8 107.238
O6 C5 H7 111.056
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability