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

using model chemistry: B3LYP/CEP-121G*

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/CEP-121G*
 hartrees
Energy at 0K-56.006999
Energy at 298.15K-56.010975
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy68.660875
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/CEP-121G*
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 3848 3731 61.78      
2 A 3700 3587 56.26      
3 A 3696 3583 107.05      
4 A 3104 3009 17.66      
5 A 1765 1711 374.95      
6 A 1712 1659 100.34      
7 A 1399 1356 5.32      
8 A 1314 1274 6.45      
9 A 1144 1109 251.46      
10 A 1063 1031 4.46      
11 A 695 674 166.50      
12 A 627 608 32.34      
13 A 550 533 309.49      
14 A 295 286 113.97      
15 A 170 165 21.63      
16 A 135 130 85.53      
17 A 80 77 7.27      
18 A 70 67 48.71      

Unscaled Zero Point Vibrational Energy (zpe) 12682.6 cm-1
Scaled (by 0.9694) Zero Point Vibrational Energy (zpe) 12294.5 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 B3LYP/CEP-121G*
ABC
0.81025 0.09097 0.08224

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.783 0.419 -0.108
O2 -2.441 -0.299 -0.087
O3 0.192 0.925 -0.003
H4 -3.003 -0.109 0.680
C5 0.684 -0.190 0.009
O6 2.014 -0.435 0.009
H7 0.108 -1.127 0.023
H8 2.464 0.433 -0.007

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 O6 H7 H8
H10.97452.04131.54452.54383.89332.44614.2481
O20.97452.90500.96873.12854.45802.68284.9601
O32.04132.90503.42611.21892.27342.05332.3246
H41.54450.96873.42613.74785.07143.33855.5360
C52.54383.12851.21893.74781.35211.09911.8860
O63.89334.45802.27345.07141.35212.02690.9780
H72.44612.68282.05333.33851.09912.02692.8251
H84.24814.96012.32465.53601.88600.97802.8251

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 105.273 H1 O3 C5 99.458
O2 H1 O3 146.615 O3 C5 O6 124.238
O3 C5 H7 124.620 C5 O6 H8 106.978
O6 C5 H7 111.142
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.435      
2 O -0.856      
3 O -0.326      
4 H 0.412      
5 C 0.143      
6 O -0.398      
7 H 0.174      
8 H 0.416      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.737 0.633 1.387 2.312
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.743 0.494 -4.753
y 0.494 -25.567 -0.264
z -4.753 -0.264 -23.237
Traceless
 xyz
x 3.659 0.494 -4.753
y 0.494 -3.577 -0.264
z -4.753 -0.264 -0.083
Polar
3z2-r2-0.165
x2-y24.824
xy0.494
xz-4.753
yz-0.264


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.007 -0.158 -0.211
y -0.158 3.900 -0.002
z -0.211 -0.002 2.503


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