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

using model chemistry: HF_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 HF_cp/6-311+G(3df,2pd)
 hartrees
Energy at 0K-264.907412
Energy at 298.15K-264.899588
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 HF/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
18 A 4232 3834 148.29      
17 A 4106 3720 15.70      
16 A 4103 3717 226.78      
15 A 3263 2956 19.99      
14 A 1971 1785 500.62      
13 A 1760 1595 122.58      
12 A 1539 1395 11.61      
11 A 1427 1293 28.74      
10 A 1269 1150 304.41      
9 A 1205 1092 0.13      
8 A 703 637 64.82      
7 A 700 634 183.28      
6 A 458 415 99.92      
5 A 331 300 155.06      
4 A 145 132 6.83      
3 A 65 59 22.07      
2 A 49 44 19.95      
1 A 44 40 124.25      

Unscaled Zero Point Vibrational Energy (zpe) 13684.2 cm-1
Scaled (by 0.906) Zero Point Vibrational Energy (zpe) 12397.9 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 HF/6-311+G(3df,2pd)
ABC
0.94239 0.08645 0.07919

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.858 0.392 0.000
O2 -2.502 -0.298 -0.000
O3 0.222 0.862 0.000
H4 -3.345 0.116 0.000
C5 0.741 -0.198 0.000
O6 2.039 -0.391 -0.000
H7 0.202 -1.138 0.000
H8 2.484 0.444 -0.000

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 O6 H7 H8
H10.94402.13271.51252.66513.97552.56604.3428
O20.94402.96120.93913.24484.54292.83195.0417
O32.13272.96123.64461.18002.20741.99962.3004
H41.51250.93913.64464.09825.40873.76255.8389
C52.66513.24481.18004.09821.31291.08321.8579
O63.97554.54292.20745.40871.31291.98330.9462
H72.56602.83191.99963.76251.08321.98332.7768
H84.34285.04172.30045.83891.85790.94622.7768

picture of Water formic acid dimer 2 state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2pd) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.209      
2 O -0.323      
3 O -0.762      
4 H 0.114      
5 C 1.018      
6 O -0.500      
7 H 0.081      
8 H 0.163      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.253 0.645 0.000 1.409
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