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

using model chemistry: B3LYPultrafine_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 B3LYPultrafine_cp_opt/6-311+G(3df,2pd)
 hartrees
Energy at 0K-266.312456
Energy at 298.15K-266.316165
Nuclear repulsion energy70.372086
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 B3LYPultrafine_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 3904 3787 101.69      
2 A 3738 3626 36.08      
3 A 3725 3613 286.36      
4 A 3077 2985 15.09      
5 A 1795 1741 387.28      
6 A 1641 1591 107.16      
7 A 1407 1365 4.11      
8 A 1313 1273 16.16      
9 A 1144 1110 264.35      
10 A 1067 1035 2.02      
11 A 686 665 147.02      
12 A 640 621 50.93      
13 A 494 479 78.10      
14 A 351 341 164.32      
15 A 159 154 7.86      
16 A 67 65 14.09      
17 A 43 42 15.99      
18 A 20 19 117.40      

Unscaled Zero Point Vibrational Energy (zpe) 12634.6 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 12255.6 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 B3LYPultrafine_cp_opt/6-311+G(3df,2pd)
ABC
0.96354 0.08688 0.07970

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine_cp_opt/6-311+G(3df,2pd)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.780 0.358 -0.006
O2 -2.485 -0.305 -0.014
O3 0.169 0.847 -0.002
H4 -3.305 0.182 0.089
C5 0.735 -0.214 0.006
O6 2.062 -0.365 0.000
H7 0.234 -1.186 0.019
H8 2.468 0.516 -0.012

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 O6 H7 H8
H10.96762.00891.53782.57923.90942.53764.2508
O20.96762.89260.95963.22144.54732.85805.0203
O32.00892.89263.53741.20222.24812.03412.3232
H41.53780.95963.53744.06015.39543.79475.7832
C52.57923.22141.20224.06011.33551.09441.8800
O63.90944.54732.24815.39541.33552.00430.9698
H72.53762.85802.03413.79471.09442.00432.8086
H84.25085.02032.32325.78321.88000.96982.8086

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 105.864 H1 O3 C5 104.036
O2 H1 O3 150.844 O3 C5 O6 124.638
O3 C5 H7 124.607 C5 O6 H8 108.229
O6 C5 H7 110.755
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine_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 -0.593      
4 H 0.000      
5 C 0.692      
6 O -0.387      
7 H 0.085      
8 H 0.202      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.604 0.864 0.183 1.831
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.850 -0.987 -0.720
y -0.987 -25.191 0.035
z -0.720 0.035 -24.899
Traceless
 xyz
x 6.195 -0.987 -0.720
y -0.987 -3.316 0.035
z -0.720 0.035 -2.879
Polar
3z2-r2-5.758
x2-y26.341
xy-0.987
xz-0.720
yz0.035


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.844 -0.266 -0.015
y -0.266 3.664 -0.031
z -0.015 -0.031 2.302


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