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

using model chemistry: wB97X-D/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 wB97X-D/6-311G**
 hartrees
Energy at 0K-266.190820
Energy at 298.15K-266.195151
HF Energy-266.190820
Nuclear repulsion energy118.357184
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 wB97X-D/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 3963 3791 60.82      
2 A 3823 3657 38.56      
3 A 3819 3653 146.95      
4 A 3117 2982 16.13      
5 A 1842 1762 381.90      
6 A 1664 1592 54.80      
7 A 1441 1378 5.45      
8 A 1344 1285 20.90      
9 A 1188 1136 235.63      
10 A 1109 1061 1.37      
11 A 716 685 159.91      
12 A 654 626 29.79      
13 A 592 566 352.15      
14 A 272 260 93.06      
15 A 209 200 107.96      
16 A 185 177 0.77      
17 A 136 130 15.54      
18 A 107 102 14.96      

Unscaled Zero Point Vibrational Energy (zpe) 13090.0 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 12520.5 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 wB97X-D/6-311G**
ABC
0.76214 0.09663 0.08645

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.816 0.455 -0.074
O2 -2.423 -0.289 -0.102
O3 0.225 0.946 0.007
H4 -2.893 -0.251 0.730
C5 0.672 -0.167 0.016
O6 1.967 -0.468 -0.001
H7 0.059 -1.076 0.043
H8 2.463 0.360 -0.026

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 O6 H7 H8
H10.96122.10131.51852.56683.89482.42404.2804
O20.96122.92470.95603.10044.39532.60824.9298
O32.10132.92473.41781.20002.24322.02962.3134
H41.51850.95603.41783.63694.91933.14095.4434
C52.56683.10041.20003.63691.32921.09671.8671
O63.89484.39532.24324.91931.32922.00340.9648
H72.42402.60822.02963.14091.09672.00342.8011
H84.28044.92982.31345.44341.86710.96482.8011

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 104.754 H1 O3 C5 98.360
O2 H1 O3 142.738 O3 C5 O6 124.899
O3 C5 H7 124.118 C5 O6 H8 107.907
O6 C5 H7 110.984
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.256      
2 O -0.498      
3 O -0.364      
4 H 0.244      
5 C 0.270      
6 O -0.296      
7 H 0.126      
8 H 0.262      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.947 0.284 1.465 2.453
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.039 1.077 -4.404
y 1.077 -25.450 -0.551
z -4.404 -0.551 -22.125
Traceless
 xyz
x 1.748 1.077 -4.404
y 1.077 -3.368 -0.551
z -4.404 -0.551 1.620
Polar
3z2-r23.240
x2-y23.411
xy1.077
xz-4.404
yz-0.551


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.494 -0.141 -0.141
y -0.141 3.656 -0.007
z -0.141 -0.007 2.371


<r2> (average value of r2) Å2
<r2> 121.712
(<r2>)1/2 11.032