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All results from a given calculation for H2OHCOOH (Water formic acid dimer 1)

using model chemistry: PBEPBE/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-266.032721
Energy at 298.15K-266.036201
HF Energy-266.032721
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy115.383003
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/Def2TZVPP
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 3795 3749 76.82      
2 A 3680 3635 39.67      
3 A 3610 3567 47.00      
4 A 2986 2950 15.00      
5 A 1770 1748 309.09      
6 A 1602 1583 52.16      
7 A 1352 1335 6.50      
8 A 1239 1224 1.59      
9 A 1062 1050 246.59      
10 A 1017 1005 4.39      
11 A 664 656 125.27      
12 A 604 596 37.90      
13 A 389 384 162.77      
14 A 200 197 83.41      
15 A 129 127 59.97      
16 A 110 109 26.38      
17 A 58 57 19.39      
18 A 49 49 17.77      

Unscaled Zero Point Vibrational Energy (zpe) 12157.5 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 12010.4 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/Def2TZVPP
ABC
0.69231 0.08924 0.07954

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/Def2TZVPP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.982 0.525 -0.113
O2 2.451 -0.322 -0.087
O3 -0.295 0.954 0.007
H4 3.060 -0.254 0.661
H5 -1.025 1.603 -0.006
C6 -0.842 -0.286 0.009
O7 -2.023 -0.523 0.003
H8 -0.030 -1.036 0.016

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 O7 H8
H10.96892.32021.53923.19542.94074.14142.5499
O20.96893.03010.96653.97403.29514.47992.5845
O32.32023.03013.62580.97591.35572.27332.0077
H41.53920.96653.62584.53623.95665.13283.2525
H53.19543.97400.97594.53621.89752.34832.8195
C62.94073.29511.35573.95661.89751.20451.1050
O74.14144.47992.27335.13282.34831.20452.0577
H82.54992.58452.00773.25252.81951.10502.0577

picture of Water formic acid dimer 1 state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 O2 H4 105.365 H1 O3 H5 148.835
H1 O3 C6 103.102 O2 H1 O3 129.493
O3 C6 O7 125.129 O3 C6 H8 108.932
H5 O3 C6 107.832 O7 C6 H8 125.940
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.212      
2 O -0.413      
3 O -0.232      
4 H 0.202      
5 H 0.203      
6 C 0.195      
7 O -0.250      
8 H 0.083      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.924 2.112 1.298 2.646
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.222 -1.585 4.409
y -1.585 -21.260 -0.617
z 4.409 -0.617 -23.331
Traceless
 xyz
x -6.927 -1.585 4.409
y -1.585 5.017 -0.617
z 4.409 -0.617 1.910
Polar
3z2-r23.819
x2-y2-7.963
xy-1.585
xz4.409
yz-0.617


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.611 0.177 0.186
y 0.177 4.586 -0.024
z 0.186 -0.024 3.124


<r2> (average value of r2) Å2
<r2> 130.718
(<r2>)1/2 11.433