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

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/6-311+G(3df,2pd)
 hartrees
Energy at 0K-266.309600
Energy at 298.15K-266.313022
Counterpoise corrected energy-266.309329
CP Energy at 298.15K-266.312677
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy116.291604
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 B3LYPultrafine/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 3914 3796 108.61      
2 A 3802 3688 40.47      
3 A 3743 3630 69.65      
4 A 3076 2984 12.03      
5 A 1823 1768 362.92      
6 A 1628 1579 101.77      
7 A 1409 1366 6.48      
8 A 1283 1245 2.93      
9 A 1107 1074 277.71      
10 A 1061 1029 1.87      
11 A 659 639 143.43      
12 A 630 611 35.36      
13 A 341 331 83.54      
14 A 260 253 125.38      
15 A 125 121 3.35      
16 A 64 62 52.24      
17 A 52 50 18.51      
18 A 38 37 81.88      

Unscaled Zero Point Vibrational Energy (zpe) 12506.9 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 12131.7 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 B3LYPultrafine/6-311+G(3df,2pd)
ABC
0.71875 0.09072 0.08060

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-311+G(3df,2pd)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.898 0.474 -0.004
O2 2.421 -0.334 -0.038
O3 -0.253 0.908 0.006
H4 3.316 -0.079 0.196
H5 -0.944 1.586 -0.038
C6 -0.860 -0.301 0.021
O7 -2.044 -0.459 -0.011
H8 -0.103 -1.091 0.066

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 O7 H8
H10.96322.19421.53533.05182.86454.05042.5415
O20.96322.94830.96013.87393.28094.46592.6369
O32.19422.94833.70790.96931.35262.25272.0053
H41.53530.96013.70794.57984.18525.37693.5682
H53.05183.87390.96934.57981.89032.32262.8081
C62.86453.28091.35264.18521.89031.19481.0945
O74.05044.46592.25275.37692.32261.19482.0419
H82.54152.63692.00533.56822.80811.09452.0419

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 105.931 H1 O3 H5 146.797
H1 O3 C6 105.247 O2 H1 O3 134.264
O3 C6 O7 124.212 O3 C6 H8 109.608
H5 O3 C6 107.858 O7 C6 H8 126.180
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-311+G(3df,2pd) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.221      
2 O -0.389      
3 O -0.431      
4 H 0.171      
5 H 0.215      
6 C 0.704      
7 O -0.609      
8 H 0.118      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.749 2.399 0.447 3.002
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.388 -0.548 1.559
y -0.548 -21.336 -0.200
z 1.559 -0.200 -24.819
Traceless
 xyz
x -2.310 -0.548 1.559
y -0.548 3.768 -0.200
z 1.559 -0.200 -1.457
Polar
3z2-r2-2.915
x2-y2-4.052
xy-0.548
xz1.559
yz-0.200


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.730 0.232 0.051
y 0.232 4.686 -0.028
z 0.051 -0.028 3.444


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