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

using model chemistry: HF_cp_opt/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 HF_cp_opt/aug-cc-pVTZ
 hartrees
Energy at 0K-264.911335
Energy at 298.15K-264.914736
Nuclear repulsion energy71.439258
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_cp_opt/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 4219 3839 121.02      
2 A 4114 3744 19.00      
3 A 4083 3716 113.13      
4 A 3273 2979 15.66      
5 A 1987 1808 488.31      
6 A 1745 1588 129.91      
7 A 1538 1399 13.70      
8 A 1409 1283 11.35      
9 A 1245 1133 312.27      
10 A 1199 1091 0.04      
11 A 695 633 50.17      
12 A 683 622 177.40      
13 A 264 240 78.23      
14 A 228 208 125.85      
15 A 93 85 0.64      
16 A 76 69 163.20      
17 A 65 59 13.34      
18 A 50 45 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 13482.9 cm-1
Scaled (by 0.91) Zero Point Vibrational Energy (zpe) 12269.5 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 HF_cp_opt/aug-cc-pVTZ
ABC
0.68168 0.08881 0.07857

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.084 0.550 -0.000
O2 -2.465 -0.312 -0.000
O3 0.349 0.936 0.000
H4 -3.399 -0.196 0.000
H5 1.055 1.566 -0.000
C6 0.861 -0.288 0.000
O7 2.015 -0.519 -0.000
H8 0.074 -1.031 0.000

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 O7 H8
H10.94222.46261.51203.29873.06164.23542.6745
O20.94223.07780.94063.98943.32654.48462.6390
O32.46263.07783.91450.94661.32632.21191.9853
H41.51200.94063.91454.78944.26095.42293.5715
H53.29873.98940.94664.78941.86382.29592.7757
C63.06163.32651.32634.26091.86381.17641.0825
O74.23544.48462.21195.42292.29591.17642.0068
H82.67452.63901.98533.57152.77571.08252.0068

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 106.847 H1 O3 H5 147.248
H1 O3 C6 103.726 O2 H1 O3 122.904
O3 C6 O7 124.102 O3 C6 H8 110.605
H5 O3 C6 109.026 O7 C6 H8 125.293
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF_cp_opt/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.305      
4 H 0.000      
5 H 0.224      
6 C -0.005      
7 O -0.538      
8 H 0.625      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.444 2.444 0.001 3.457
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.256 1.610 -0.003
y 1.610 -21.006 -0.001
z -0.003 -0.001 -24.378
Traceless
 xyz
x -0.564 1.610 -0.003
y 1.610 2.812 -0.001
z -0.003 -0.001 -2.247
Polar
3z2-r2-4.495
x2-y2-2.250
xy1.610
xz-0.003
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.376 0.192 -0.075
y 0.192 3.142 0.026
z -0.075 0.026 2.166


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