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

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-264.914039
Energy at 298.15K-264.917782
Nuclear repulsion energy71.531523
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 4206 3828 146.36      
2 A 4080 3713 46.31      
3 A 4076 3709 188.99      
4 A 3264 2970 20.20      
5 A 1965 1788 501.23      
6 A 1758 1600 121.73      
7 A 1538 1399 11.54      
8 A 1426 1298 28.47      
9 A 1266 1152 305.56      
10 A 1202 1094 0.06      
11 A 701 638 64.11      
12 A 698 635 181.09      
13 A 444 404 95.27      
14 A 325 296 149.72      
15 A 137 125 7.51      
16 A 63 57 30.62      
17 A 48 44 110.44      
18 A 46 42 20.75      

Unscaled Zero Point Vibrational Energy (zpe) 13621.6 cm-1
Scaled (by 0.91) Zero Point Vibrational Energy (zpe) 12395.7 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
0.94976 0.08551 0.07845

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 -1.870 0.391 -0.001
O2 -2.517 -0.297 -0.002
O3 0.223 0.858 -0.000
H4 -3.360 0.121 0.012
C5 0.748 -0.201 0.001
O6 2.049 -0.387 -0.000
H7 0.215 -1.144 0.003
H8 2.490 0.451 -0.002

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 O6 H7 H8
H10.94482.14441.51402.68393.99592.58864.3601
O20.94482.97380.94013.26674.56762.86025.0627
O32.14442.97383.65761.18132.21022.00112.3029
H41.51400.94013.65764.12005.43273.79115.8586
C52.68393.26671.18134.12001.31481.08311.8598
O63.99594.56762.21025.43271.31481.98440.9469
H72.58862.86022.00113.79111.08311.98442.7782
H84.36015.06272.30295.85861.85980.94692.7782

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 106.872 H1 O3 C5 103.811
O2 H1 O3 145.814 O3 C5 O6 124.534
O3 C5 H7 124.133 C5 O6 H8 109.558
O6 C5 H7 111.333
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 -0.547      
4 H 0.000      
5 C -0.008      
6 O -0.306      
7 H 0.627      
8 H 0.234      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.277 0.637 0.026 1.428
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.192 -0.971 -0.103
y -0.971 -25.077 0.001
z -0.103 0.001 -24.361
Traceless
 xyz
x 7.527 -0.971 -0.103
y -0.971 -4.300 0.001
z -0.103 0.001 -3.226
Polar
3z2-r2-6.453
x2-y27.885
xy-0.971
xz-0.103
yz0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.236 -0.226 0.004
y -0.226 3.325 -0.006
z 0.004 -0.006 2.169


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