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

using model chemistry: HF/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-264.907536
Energy at 298.15K-264.911304
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy117.550619
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/6-311+G(3df,2p)
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 4236 3849 147.73      
2 A 4109 3734 24.54      
3 A 4106 3730 211.94      
4 A 3264 2965 19.91      
5 A 1971 1791 499.77      
6 A 1759 1598 123.48      
7 A 1540 1399 11.60      
8 A 1426 1296 28.88      
9 A 1269 1153 304.14      
10 A 1204 1094 0.13      
11 A 702 638 64.87      
12 A 702 638 183.12      
13 A 457 415 100.67      
14 A 329 299 153.80      
15 A 145 131 6.94      
16 A 64 58 20.12      
17 A 50 45 21.53      
18 A 42 38 125.90      

Unscaled Zero Point Vibrational Energy (zpe) 13686.8 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 12435.9 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/6-311+G(3df,2p)
ABC
0.93762 0.08661 0.07929

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311+G(3df,2p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.860 0.395 -0.007
O2 -2.500 -0.298 -0.011
O3 0.223 0.864 0.001
H4 -3.344 0.107 0.053
C5 0.739 -0.197 0.008
O6 2.037 -0.394 -0.003
H7 0.198 -1.136 0.024
H8 2.484 0.440 -0.018

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 O6 H7 H8
H10.94372.13531.51342.66583.97632.56464.3443
O20.94372.96100.93893.24084.53832.82475.0385
O32.13532.96103.64751.18002.20741.99992.3004
H41.51340.93893.64754.09525.40523.75375.8385
C52.66583.24081.18004.09521.31291.08361.8578
O63.97634.53832.20745.40521.31291.98390.9459
H72.56462.82471.99993.75371.08361.98392.7771
H84.34435.03852.30045.83851.85780.94592.7771

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 107.004 H1 O3 C5 103.244
O2 H1 O3 145.391 O3 C5 O6 124.530
O3 C5 H7 124.080 C5 O6 H8 109.593
O6 C5 H7 111.390
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.304      
2 O -0.513      
3 O -0.761      
4 H 0.209      
5 C 0.938      
6 O -0.577      
7 H 0.172      
8 H 0.228      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.233 0.633 0.119 1.391
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.035 -0.937 -0.500
y -0.937 -25.162 -0.023
z -0.500 -0.023 -24.383
Traceless
 xyz
x 7.738 -0.937 -0.500
y -0.937 -4.453 -0.023
z -0.500 -0.023 -3.285
Polar
3z2-r2-6.570
x2-y28.128
xy-0.937
xz-0.500
yz-0.023


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.774 -0.213 -0.015
y -0.213 4.084 -0.008
z -0.015 -0.008 3.028


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