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

using model chemistry: PBEPBE/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 PBEPBE/6-31+G**
 hartrees
Energy at 0K-265.929269
Energy at 298.15K-265.932731
Counterpoise corrected energy-265.928563
CP Energy at 298.15K-265.931957
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy116.055289
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 PBEPBE/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' 3826 3782 82.47      
2 A' 3685 3643 30.18      
3 A' 3617 3576 47.60      
4 A' 3031 2997 7.00      
5 A' 1768 1748 332.66      
6 A' 1571 1553 125.10      
7 A' 1357 1341 8.61      
8 A' 1228 1214 5.04      
9 A' 1072 1060 258.63      
10 A' 597 590 33.27      
11 A' 280 277 165.50      
12 A' 133 132 1.55      
13 A' 76 76 15.87      
14 A" 1009 997 6.63      
15 A" 665 657 147.00      
16 A" 328 324 78.13      
17 A" 67 66 107.02      
18 A" 42 42 83.78      

Unscaled Zero Point Vibrational Energy (zpe) 12174.9 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 12036.1 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 PBEPBE/6-31+G**
ABC
0.66599 0.09521 0.08330

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.152 -1.982 0.000
O2 1.122 -2.087 0.000
O3 -0.977 -0.092 0.000
H4 1.288 -3.045 0.000
H5 -1.839 0.381 0.000
C6 0.000 0.867 0.000
O7 -0.219 2.062 0.000
H8 0.992 0.376 0.000

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 O7 H8
H10.97582.20171.55523.08992.85254.06102.5030
O20.97582.89590.97203.85463.15924.36032.4662
O32.20172.89593.72110.98311.36842.28312.0234
H41.55520.97203.72114.63794.11755.32433.4333
H53.08993.85460.98314.63791.90182.33422.8306
C62.85253.15921.36844.11751.90181.21551.1064
O74.06104.36032.28315.32432.33421.21552.0759
H82.50302.46622.02343.43332.83061.10642.0759

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 105.967 H1 O3 H5 149.595
H1 O3 C6 103.601 O2 H1 O3 127.013
O3 C6 O7 124.055 O3 C6 H8 109.234
H5 O3 C6 106.804 O7 C6 H8 126.711
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.367      
2 O -0.731      
3 O -0.429      
4 H 0.372      
5 H 0.374      
6 C 0.252      
7 O -0.394      
8 H 0.189      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.737 -2.787 0.000 3.284
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.322 -0.161 0.000
y -0.161 -23.799 0.000
z 0.000 0.000 -25.389
Traceless
 xyz
x 3.272 -0.161 0.000
y -0.161 -0.443 0.000
z 0.000 0.000 -2.829
Polar
3z2-r2-5.658
x2-y22.477
xy-0.161
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.497 -0.138 0.000
y -0.138 5.731 0.000
z 0.000 0.000 3.069


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