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

using model chemistry: MP2_cp/6-311+G(3df,2pd)

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_cp/6-311+G(3df,2pd)
 hartrees
Energy at 0K-265.801673
Energy at 298.15K-265.793550
Nuclear repulsion energy 
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 MP2/6-311+G(3df,2pd)
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 3776 121.97      
2 A 3849 3656 34.15      
3 A 3786 3597 87.33      
4 A 3151 2994 6.12      
5 A 1808 1718 315.84      
6 A 1632 1550 107.11      
7 A 1420 1349 7.49      
8 A 1284 1220 7.73      
9 A 1118 1062 284.77      
10 A 1069 1016 3.12      
11 A 665 632 140.04      
12 A 628 596 35.08      
13 A 340 323 57.21      
14 A 281 267 144.30      
15 A 143 136 1.54      
16 A 85 81 12.15      
17 A 69 65 125.03      
18 A 46 44 28.27      

Unscaled Zero Point Vibrational Energy (zpe) 12674.1 cm-1
Scaled (by 0.95) Zero Point Vibrational Energy (zpe) 12040.4 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 MP2/6-311+G(3df,2pd)
ABC
0.68839 0.09644 0.08459

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311+G(3df,2pd)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.872 0.500 -0.000
O2 -2.334 -0.343 -0.000
O3 0.243 0.934 0.000
H4 -3.265 -0.119 0.001
H5 0.969 1.574 -0.001
C6 0.813 -0.293 0.000
O7 1.998 -0.484 -0.000
H8 0.035 -1.058 0.001

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 O7 H8
H10.96122.15881.52413.03712.79943.99332.4625
O20.96122.87550.95803.81863.14684.33412.4741
O32.15882.87553.66210.96791.35322.25662.0032
H41.52410.95803.66214.55964.08145.27583.4310
H53.03713.81860.96794.55961.87382.30102.7932
C62.79943.14681.35324.08141.87381.20071.0911
O73.99334.33412.25665.27582.30101.20072.0457
H82.46252.47412.00323.43102.79321.09112.0457

picture of Water formic acid dimer 1 state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/6-311+G(3df,2pd) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.205      
2 O -0.329      
3 O -0.525      
4 H 0.136      
5 H 0.181      
6 C 1.004      
7 O -0.775      
8 H 0.102      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.284 2.451 0.002 3.350
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000