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

using model chemistry: B3LYP_cp_opt/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-266.315022
Energy at 298.15K-266.318421
Nuclear repulsion energy70.131324
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/aug-cc-pVTZ
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 3889 3773 105.29      
2 A 3776 3663 34.37      
3 A 3721 3609 67.44      
4 A 3076 2984 11.92      
5 A 1815 1760 362.74      
6 A 1626 1578 107.61      
7 A 1407 1365 7.07      
8 A 1283 1245 2.96      
9 A 1104 1071 276.53      
10 A 1059 1027 2.12      
11 A 663 643 140.27      
12 A 628 609 34.13      
13 A 316 306 61.44      
14 A 263 255 131.82      
15 A 119 116 2.58      
16 A 63 61 45.10      
17 A 56 54 9.16      
18 A 35 34 96.50      

Unscaled Zero Point Vibrational Energy (zpe) 12449.8 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 12076.3 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/aug-cc-pVTZ
ABC
0.71283 0.09063 0.08041

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP_cp_opt/aug-cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.920 0.488 0.000
O2 2.419 -0.336 -0.016
O3 -0.257 0.913 0.002
H4 3.342 -0.087 0.083
H5 -0.953 1.589 -0.014
C6 -0.859 -0.301 0.008
O7 -2.044 -0.464 -0.004
H8 -0.098 -1.087 0.024

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 O7 H8
H10.96402.21821.53683.07652.88864.07672.5603
O20.96402.95380.96123.88313.27864.46532.6276
O32.21822.95383.73700.97001.35452.25592.0066
H41.53680.96123.73704.61184.20755.40043.5836
H53.07653.88310.97004.61181.89172.32492.8093
C62.88863.27861.35454.20751.89171.19641.0944
O74.07674.46532.25595.40042.32491.19642.0432
H82.56032.62762.00663.58362.80931.09442.0432

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 105.930 H1 O3 H5 146.861
H1 O3 C6 105.333 O2 H1 O3 132.251
O3 C6 O7 124.230 O3 C6 H8 109.590
H5 O3 C6 107.795 O7 C6 H8 126.179
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP_cp_opt/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.301      
4 H 0.000      
5 H 0.205      
6 C 0.068      
7 O -0.457      
8 H 0.485      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.823 2.376 0.185 3.001
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.976 -0.655 0.657
y -0.655 -21.353 -0.071
z 0.657 -0.071 -24.933
Traceless
 xyz
x -1.834 -0.655 0.657
y -0.655 3.602 -0.071
z 0.657 -0.071 -1.768
Polar
3z2-r2-3.537
x2-y2-3.624
xy-0.655
xz0.657
yz-0.071


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.002 0.323 -0.027
y 0.323 3.969 0.024
z -0.027 0.024 2.475


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