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

using model chemistry: HF_cp_opt/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_opt/6-311+G(3df,2pd)
 hartrees
Energy at 0K-264.908442
Energy at 298.15K-264.912192
Nuclear repulsion energy71.612373
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_cp_opt/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 4232 3851 145.89      
2 A 4107 3737 3.31      
3 A 4104 3735 228.92      
4 A 3263 2969 19.95      
5 A 1971 1794 498.87      
6 A 1758 1600 124.58      
7 A 1539 1401 11.35      
8 A 1427 1298 28.63      
9 A 1269 1154 305.72      
10 A 1205 1096 0.12      
11 A 702 639 64.91      
12 A 700 637 182.84      
13 A 441 402 100.78      
14 A 326 297 154.63      
15 A 138 125 7.12      
16 A 64 58 35.40      
17 A 52 47 112.51      
18 A 50 45 20.04      

Unscaled Zero Point Vibrational Energy (zpe) 13673.2 cm-1
Scaled (by 0.91) Zero Point Vibrational Energy (zpe) 12442.6 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_cp_opt/6-311+G(3df,2pd)
ABC
0.92652 0.08624 0.07890

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.875 0.402 -0.000
O2 -2.507 -0.299 -0.001
O3 0.232 0.870 -0.000
H4 -3.357 0.100 0.003
C5 0.741 -0.195 0.000
O6 2.038 -0.400 -0.000
H7 0.193 -1.129 0.001
H8 2.490 0.431 -0.001

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 O6 H7 H8
H10.94382.15851.51212.68293.99402.57354.3652
O20.94382.97810.93923.24934.54572.82505.0501
O32.15852.97813.67041.17982.20741.99972.3003
H41.51210.93923.67044.10815.41763.75715.8562
C52.68293.24931.17984.10811.31311.08321.8579
O63.99404.54572.20745.41761.31311.98330.9461
H72.57352.82501.99973.75711.08321.98332.7767
H84.36525.05012.30035.85621.85790.94612.7767

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 106.839 H1 O3 C5 103.011
O2 H1 O3 144.554 O3 C5 O6 124.531
O3 C5 H7 124.112 C5 O6 H8 109.574
O6 C5 H7 111.357
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF_cp_opt/6-311+G(3df,2pd) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.748      
4 H 0.000      
5 C 1.001      
6 O -0.467      
7 H 0.060      
8 H 0.155      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.185 0.625 0.007 1.339
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.848 -0.960 -0.029
y -0.960 -25.241 0.000
z -0.029 0.000 -24.366
Traceless
 xyz
x 7.956 -0.960 -0.029
y -0.960 -4.634 0.000
z -0.029 0.000 -3.322
Polar
3z2-r2-6.644
x2-y28.393
xy-0.960
xz-0.029
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.174 -0.246 0.004
y -0.246 3.273 -0.007
z 0.004 -0.007 2.086


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