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

using model chemistry: PBEPBE/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBE/aug-cc-pVTZ
 hartrees
Energy at 0K-266.029957
Energy at 298.15K-266.033811
Counterpoise corrected energy-266.029850
CP Energy at 298.15K-266.034545
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy116.161372
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 PBEPBE/aug-cc-pVTZ
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 3776 3751 79.55      
2 A 3591 3568 37.11      
3 A 3556 3533 337.36      
4 A 2994 2974 15.96      
5 A 1731 1719 351.00      
6 A 1605 1595 91.60      
7 A 1350 1342 3.01      
8 A 1273 1264 13.88      
9 A 1099 1092 232.92      
10 A 1016 1009 4.93      
11 A 684 679 127.26      
12 A 615 611 42.69      
13 A 515 512 90.41      
14 A 351 349 137.34      
15 A 162 161 9.71      
16 A 98 97 108.09      
17 A 62 61 1.49      
18 A 49 48 14.06      

Unscaled Zero Point Vibrational Energy (zpe) 12262.2 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 12182.5 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 PBEPBE/aug-cc-pVTZ
ABC
0.93708 0.08754 0.08017

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/aug-cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.744 0.346 -0.019
O2 -2.474 -0.307 -0.051
O3 0.154 0.857 -0.005
H4 -3.242 0.161 0.310
C5 0.727 -0.214 0.023
O6 2.064 -0.369 -0.002
H7 0.224 -1.196 0.073
H8 2.457 0.528 -0.047

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 O6 H7 H8
H10.97931.96551.54472.53403.87472.50224.2052
O20.97932.87380.96903.20264.53822.84335.0007
O31.96552.87383.48061.21482.26972.05542.3269
H41.54470.96903.48063.99675.34143.72985.7219
C52.53403.20261.21483.99671.34631.10421.8840
O63.87474.53822.26975.34141.34632.01830.9807
H72.50222.84332.05543.72981.10422.01832.8235
H84.20525.00072.32695.72191.88400.98072.8235

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 104.906 H1 O3 C5 103.098
O2 H1 O3 153.204 O3 C5 O6 124.721
O3 C5 H7 124.765 C5 O6 H8 107.067
O6 C5 H7 110.514
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.246      
2 O -0.398      
3 O -0.444      
4 H 0.147      
5 C 0.063      
6 O -0.232      
7 H 0.445      
8 H 0.174      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.836 0.780 0.592 2.081
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.899 -0.585 -2.355
y -0.585 -25.317 0.102
z -2.355 0.102 -24.860
Traceless
 xyz
x 5.189 -0.585 -2.355
y -0.585 -2.938 0.102
z -2.355 0.102 -2.252
Polar
3z2-r2-4.504
x2-y25.418
xy-0.585
xz-2.355
yz0.102


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.565 -0.237 -0.049
y -0.237 5.130 -0.048
z -0.049 -0.048 3.898


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