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

using model chemistry: HF/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 HF/Def2TZVPP
 hartrees
Energy at 0K-264.919817
Energy at 298.15K-264.923207
HF Energy-264.919817
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy116.874059
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 HF/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 4231 3835 111.72      
2 A 4128 3741 19.90      
3 A 4096 3713 113.37      
4 A 3277 2970 16.74      
5 A 1992 1806 477.52      
6 A 1748 1584 123.05      
7 A 1540 1396 13.97      
8 A 1411 1279 12.04      
9 A 1245 1128 314.32      
10 A 1202 1089 0.12      
11 A 696 631 51.00      
12 A 688 623 182.65      
13 A 264 239 90.79      
14 A 232 210 132.17      
15 A 96 87 0.40      
16 A 70 64 13.93      
17 A 64 58 169.44      
18 A 49 45 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 13514.0 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 12249.1 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 HF/Def2TZVPP
ABC
0.67404 0.08999 0.07939

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.985 0.508 -0.134
O2 2.451 -0.308 -0.075
O3 -0.316 0.927 0.006
H4 3.086 -0.202 0.609
H5 -1.020 1.560 -0.001
C6 -0.844 -0.291 0.005
O7 -2.000 -0.503 0.006
H8 -0.068 -1.045 0.001

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 O7 H8
H10.94192.34361.50623.18642.94294.11362.5775
O20.94193.03190.93983.94223.29574.45572.6252
O32.34363.03193.63570.94581.32782.20931.9876
H41.50620.93983.63574.50953.97725.13063.3209
H53.18643.94220.94584.50951.85922.28392.7728
C62.94293.29571.32783.97721.85921.17541.0815
O74.11364.45572.20935.13062.28391.17542.0064
H82.57752.62521.98763.32092.77281.08152.0064

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 106.346 H1 O3 H5 148.167
H1 O3 C6 103.045 O2 H1 O3 129.577
O3 C6 O7 123.795 O3 C6 H8 110.757
H5 O3 C6 108.549 O7 C6 H8 125.448
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.236      
2 O -0.447      
3 O -0.380      
4 H 0.214      
5 H 0.235      
6 C 0.490      
7 O -0.426      
8 H 0.079      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.486 2.502 0.003 3.527
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.739 -1.630 0.028
y -1.630 -20.921 0.022
z 0.028 0.022 -24.148
Traceless
 xyz
x -0.204 -1.630 0.028
y -1.630 2.522 0.022
z 0.028 0.022 -2.318
Polar
3z2-r2-4.637
x2-y2-1.817
xy-1.630
xz0.028
yz0.022


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.560 0.132 -0.003
y 0.132 3.748 0.002
z -0.003 0.002 2.583


<r2> (average value of r2) Å2
<r2> 130.750
(<r2>)1/2 11.435