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

using model chemistry: HF/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-264.816391
Energy at 298.15K-264.820287
Counterpoise corrected energy-264.815895
CP Energy at 298.15K-264.819748
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy117.801505
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/6-31+G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
18 A 4252 3845 155.15      
17 A 4111 3717 70.62      
16 A 4105 3712 151.87      
15 A 3321 3003 15.85      
14 A 1978 1788 519.10      
13 A 1743 1576 160.64      
12 A 1539 1392 12.77      
11 A 1425 1289 41.44      
10 A 1277 1154 306.60      
9 A 1201 1086 0.31      
8 A 710 642 222.32      
7 A 696 629 69.75      
6 A 462 418 140.73      
5 A 346 313 186.22      
4 A 154 140 5.89      
3 A 82 74 177.93      
2 A 68 62 7.42      
1 A 59 54 25.95      

Unscaled Zero Point Vibrational Energy (zpe) 13764.5 cm-1
Scaled (by 0.9042) Zero Point Vibrational Energy (zpe) 12445.9 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/6-31+G**
ABC
0.88125 0.08984 0.08153

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.857 0.438 -0.000
O2 -2.444 -0.305 -0.000
O3 0.223 0.895 0.000
H4 -3.327 0.024 0.001
C5 0.711 -0.189 0.000
O6 2.008 -0.418 -0.000
H7 0.143 -1.111 0.000
H8 2.479 0.407 -0.000

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 O6 H7 H8
H10.94732.12981.52692.64393.95882.53044.3360
O20.94732.92470.94233.15724.45332.70984.9739
O32.12982.92473.65511.18922.21562.00782.3078
H41.52690.94233.65514.04365.35303.65105.8181
C52.64393.15721.18924.04361.31671.08271.8654
O63.95884.45332.21565.35301.31671.98950.9495
H72.53042.70982.00783.65101.08271.98952.7855
H84.33604.97392.30785.81811.86540.94952.7855

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 107.815 H1 O3 C5 101.851
O2 H1 O3 140.658 O3 C5 O6 124.219
O3 C5 H7 124.132 C5 O6 H8 109.735
O6 C5 H7 111.649
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.404      
2 O -0.777      
3 O -0.591      
4 H 0.372      
5 C 0.558      
6 O -0.522      
7 H 0.169      
8 H 0.388      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.893 0.749 0.002 1.166
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.959 -0.860 -0.008
y -0.860 -25.839 -0.000
z -0.008 -0.000 -24.541
Traceless
 xyz
x 9.231 -0.860 -0.008
y -0.860 -5.589 -0.000
z -0.008 -0.000 -3.642
Polar
3z2-r2-7.284
x2-y29.880
xy-0.860
xz-0.008
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.295 -0.241 -0.000
y -0.241 3.762 -0.000
z -0.000 -0.000 2.486


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