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

using model chemistry: B3LYP_cp_opt/6-311+G(3df,2pd)

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/6-311+G(3df,2pd)
 hartrees
Energy at 0K-266.309330
Energy at 298.15K-266.312736
Nuclear repulsion energy70.218179
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/6-311+G(3df,2pd)
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 3916 3798 104.11      
2 A 3806 3691 33.99      
3 A 3745 3632 68.24      
4 A 3077 2985 11.62      
5 A 1822 1768 363.04      
6 A 1626 1577 109.18      
7 A 1409 1367 6.89      
8 A 1284 1245 3.09      
9 A 1108 1074 277.35      
10 A 1062 1030 1.89      
11 A 661 641 143.04      
12 A 630 611 35.27      
13 A 315 306 67.14      
14 A 263 255 139.48      
15 A 117 114 2.38      
16 A 66 64 92.08      
17 A 58 56 20.07      
18 A 42 41 49.34      

Unscaled Zero Point Vibrational Energy (zpe) 12502.4 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 12127.3 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/6-311+G(3df,2pd)
ABC
0.70575 0.09079 0.08045

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP_cp_opt/6-311+G(3df,2pd)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.926 0.492 -0.001
O2 2.419 -0.335 -0.012
O3 -0.266 0.918 0.002
H4 3.345 -0.091 0.062
H5 -0.967 1.587 -0.011
C6 -0.856 -0.299 0.006
O7 -2.038 -0.473 -0.003
H8 -0.088 -1.079 0.018

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 O7 H8
H10.96302.23331.53523.09382.89204.07972.5545
O20.96302.96360.96023.89423.27534.45942.6157
O32.23332.96363.75000.96921.35242.25272.0052
H41.53520.96023.75004.62794.20625.39693.5729
H53.09383.89420.96924.62791.88952.32182.8076
C62.89203.27531.35244.20621.88951.19501.0945
O74.07974.45942.25275.39692.32181.19502.0419
H82.55452.61572.00523.57292.80761.09452.0419

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 147.338
H1 O3 C6 104.840 O2 H1 O3 131.818
O3 C6 O7 124.218 O3 C6 H8 109.624
H5 O3 C6 107.815 O7 C6 H8 126.158
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP_cp_opt/6-311+G(3df,2pd) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.437      
4 H 0.000      
5 H 0.215      
6 C 0.686      
7 O -0.565      
8 H 0.101      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.871 2.425 0.140 3.066
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.705 -0.645 0.498
y -0.645 -21.383 -0.057
z 0.498 -0.057 -24.931
Traceless
 xyz
x -1.548 -0.645 0.498
y -0.645 3.435 -0.057
z 0.498 -0.057 -1.887
Polar
3z2-r2-3.774
x2-y2-3.322
xy-0.645
xz0.498
yz-0.057


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.921 0.346 -0.027
y 0.346 3.865 0.024
z -0.027 0.024 2.359


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