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

using model chemistry: MP2/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/Def2TZVPP
 hartrees
Energy at 0K-265.807050
Energy at 298.15K-265.810600
HF Energy-264.915485
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy116.980396
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 MP2/Def2TZVPP
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 3961 3769 106.80      
2 A 3832 3646 27.31      
3 A 3766 3583 84.16      
4 A 3160 3006 7.89      
5 A 1808 1721 296.48      
6 A 1648 1568 88.16      
7 A 1423 1354 7.56      
8 A 1293 1230 5.50      
9 A 1115 1061 283.03      
10 A 1072 1020 3.81      
11 A 662 630 140.75      
12 A 627 597 36.48      
13 A 351 334 115.25      
14 A 244 232 111.49      
15 A 135 128 10.32      
16 A 99 94 66.08      
17 A 73 69 66.53      
18 A 45 43 13.43      

Unscaled Zero Point Vibrational Energy (zpe) 12656.5 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 12042.7 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 MP2/Def2TZVPP
ABC
0.67386 0.09553 0.08385

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.975 0.517 -0.119
O2 2.437 -0.323 -0.083
O3 -0.290 0.948 0.007
H4 3.055 -0.231 0.643
H5 -1.016 1.587 -0.009
C6 -0.838 -0.285 0.009
O7 -2.016 -0.517 0.003
H8 -0.039 -1.029 0.015

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 O7 H8
H10.95942.30961.51793.17842.92784.12442.5419
O20.95943.01080.95743.94683.27664.45822.5763
O32.30963.01083.60310.96651.34972.26361.9931
H41.51790.95743.60314.50503.94405.11863.2556
H53.17843.94680.96654.50501.88072.32932.7923
C62.92783.27661.34973.94401.88071.20061.0915
O74.12444.45822.26365.11862.32931.20062.0426
H82.54192.57631.99313.25562.79231.09152.0426

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 104.724 H1 O3 H5 149.172
H1 O3 C6 103.129 O2 H1 O3 129.352
O3 C6 O7 125.040 O3 C6 H8 108.999
H5 O3 C6 107.424 O7 C6 H8 125.961
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability