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

using model chemistry: MP2/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/6-311G*
 hartrees
Energy at 0K-265.574484
Energy at 298.15K-265.578453
HF Energy-264.846625
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy117.035430
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 MP2/6-311G*
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 3975 3778 65.20      
2 A 3841 3650 15.89      
3 A 3771 3583 56.69      
4 A 3175 3017 10.68      
5 A 1835 1744 285.89      
6 A 1759 1671 95.53      
7 A 1439 1368 7.60      
8 A 1314 1249 2.41      
9 A 1139 1082 305.06      
10 A 1088 1034 4.83      
11 A 711 676 185.77      
12 A 637 605 52.53      
13 A 489 464 283.70      
14 A 237 225 147.59      
15 A 183 174 113.63      
16 A 148 141 0.79      
17 A 101 96 21.18      
18 A 76 72 14.74      

Unscaled Zero Point Vibrational Energy (zpe) 12959.0 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 12314.9 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 MP2/6-311G*
ABC
0.66666 0.09547 0.08411

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.960 0.526 -0.107
O2 2.417 -0.316 -0.089
O3 -0.289 0.957 0.011
H4 3.005 -0.312 0.666
H5 -1.014 1.595 -0.005
C6 -0.824 -0.283 0.009
O7 -2.001 -0.527 -0.000
H8 -0.011 -1.016 0.020

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 O7 H8
H10.95872.29331.54643.16232.90214.10042.5060
O20.95872.99230.95713.92853.24264.42362.5285
O32.29332.99233.59040.96611.35072.26581.9929
H41.54640.95713.59044.49923.88515.05453.1633
H53.16233.92850.96614.49921.88832.34112.7980
C62.90213.24261.35073.88511.88831.20181.0952
O74.10044.42362.26585.05452.34111.20182.0496
H82.50602.52851.99293.16332.79801.09522.0496

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 107.645 H1 O3 H5 149.233
H1 O3 C6 102.480 O2 H1 O3 129.139
O3 C6 O7 125.064 O3 C6 H8 108.678
H5 O3 C6 108.027 O7 C6 H8 126.258
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability