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

using model chemistry: B3LYP_cp_opt/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 B3LYP_cp_opt/6-31+G**
 hartrees
Energy at 0K-266.217132
Energy at 298.15K-266.220970
Nuclear repulsion energy69.978739
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_cp_opt/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
1 A 3905 3765 111.07      
2 A 3733 3599 32.35      
3 A 3722 3589 240.75      
4 A 3119 3007 12.50      
5 A 1795 1730 396.13      
6 A 1619 1561 141.54      
7 A 1405 1355 4.18      
8 A 1308 1262 26.06      
9 A 1151 1110 260.14      
10 A 1062 1024 3.17      
11 A 693 668 173.84      
12 A 633 610 54.59      
13 A 489 472 111.51      
14 A 356 344 210.87      
15 A 164 158 6.91      
16 A 89 86 147.81      
17 A 58 56 24.39      
18 A 49 47 21.26      

Unscaled Zero Point Vibrational Energy (zpe) 12674.9 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 12221.1 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 B3LYP_cp_opt/6-31+G**
ABC
0.90303 0.08858 0.08067

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP_cp_opt/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.788 0.394 -0.001
O2 2.454 -0.313 -0.002
O3 -0.176 0.879 -0.000
H4 3.316 0.119 0.014
C5 -0.718 -0.206 0.001
O6 -2.045 -0.390 0.000
H7 -0.188 -1.166 0.003
H8 -2.473 0.485 -0.002

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 O6 H7 H8
H10.97162.02311.55272.57603.91202.51704.2614
O20.97162.88830.96413.17354.49992.77624.9913
O32.02312.88833.57401.21332.25932.04602.3301
H41.55270.96413.57404.04645.38503.73185.8002
C52.57603.17351.21334.04641.34021.09671.8866
O63.91204.49992.25935.38501.34022.01310.9743
H72.51702.77622.04603.73181.09672.01312.8196
H84.26144.99132.33015.80021.88660.97432.8196

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 106.676 H1 O3 C5 102.597
O2 H1 O3 147.218 O3 C5 O6 124.382
O3 C5 H7 124.610 C5 O6 H8 108.157
O6 C5 H7 111.009
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP_cp_opt/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.440      
4 H 0.000      
5 C 0.335      
6 O -0.394      
7 H 0.138      
8 H 0.361      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.344 1.049 0.032 1.705
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.798 1.120 0.124
y 1.120 -25.775 0.003
z 0.124 0.003 -25.125
Traceless
 xyz
x 7.653 1.120 0.124
y 1.120 -4.314 0.003
z 0.124 0.003 -3.338
Polar
3z2-r2-6.677
x2-y27.978
xy1.120
xz0.124
yz0.003


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.524 -0.356 0.014
y -0.356 3.591 0.009
z 0.014 0.009 1.939


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