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

using model chemistry: B3LYP/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 B3LYP/Def2TZVPP
 hartrees
Energy at 0K-266.324750
Energy at 298.15K-266.328652
HF Energy-266.324750
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy116.919071
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 B3LYP/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 3888 3743 86.83      
2 A 3729 3590 32.88      
3 A 3718 3579 241.49      
4 A 3083 2968 15.86      
5 A 1791 1724 378.90      
6 A 1647 1585 77.71      
7 A 1404 1352 4.24      
8 A 1316 1266 15.10      
9 A 1143 1100 253.23      
10 A 1072 1032 2.23      
11 A 690 664 147.35      
12 A 641 617 42.15      
13 A 517 497 184.71      
14 A 318 306 112.15      
15 A 162 156 13.05      
16 A 111 107 103.57      
17 A 70 67 4.32      
18 A 59 56 24.47      

Unscaled Zero Point Vibrational Energy (zpe) 12678.2 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 12204.0 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 B3LYP/Def2TZVPP
ABC
0.89193 0.08909 0.08129

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/Def2TZVPP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.841 0.437 -0.120
O2 -2.466 -0.297 -0.084
O3 0.223 0.929 -0.001
H4 -3.026 -0.124 0.676
C5 0.697 -0.176 0.006
O6 2.003 -0.449 0.009
H7 0.107 -1.098 0.012
H8 2.496 0.384 0.001

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 O6 H7 H8
H10.96482.12501.53372.61453.94752.48404.3396
O20.96482.95600.95933.16664.47272.69615.0094
O32.12502.95603.48111.20212.25142.03022.3378
H41.53370.95933.48113.78295.08323.34675.5861
C52.61453.16661.20213.78291.33441.09521.8843
O63.94754.47272.25145.08321.33442.00460.9683
H72.48402.69612.03023.34671.09522.00462.8121
H84.33965.00942.33785.58611.88430.96832.8121

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 105.706 H1 O3 C5 99.863
O2 H1 O3 143.382 O3 C5 O6 125.067
O3 C5 H7 124.128 C5 O6 H8 108.788
O6 C5 H7 110.805
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.221      
2 O -0.430      
3 O -0.325      
4 H 0.192      
5 C 0.262      
6 O -0.249      
7 H 0.115      
8 H 0.214      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.735 0.590 1.036 2.105
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.870 0.048 -3.800
y 0.048 -25.383 -0.037
z -3.800 -0.037 -23.769
Traceless
 xyz
x 4.706 0.048 -3.800
y 0.048 -3.563 -0.037
z -3.800 -0.037 -1.143
Polar
3z2-r2-2.286
x2-y25.513
xy0.048
xz-3.800
yz-0.037


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.473 -0.204 -0.155
y -0.204 4.259 0.012
z -0.155 0.012 2.937


<r2> (average value of r2) Å2
<r2> 128.788
(<r2>)1/2 11.348