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

using model chemistry: HF/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 HF/aug-cc-pVTZ
 hartrees
Energy at 0K-264.911454
Energy at 298.15K-264.914883
Counterpoise corrected energy-264.911335
CP Energy at 298.15K-264.914736
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy116.710482
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/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 4218 3840 121.65      
2 A 4114 3745 19.20      
3 A 4084 3718 113.38      
4 A 3273 2980 15.50      
5 A 1987 1809 488.18      
6 A 1745 1589 130.14      
7 A 1538 1400 13.73      
8 A 1409 1283 11.26      
9 A 1245 1133 312.33      
10 A 1199 1091 0.05      
11 A 695 633 50.18      
12 A 684 622 177.26      
13 A 267 243 77.42      
14 A 231 211 126.73      
15 A 95 87 0.64      
16 A 81 74 163.15      
17 A 67 61 13.16      
18 A 52 47 0.11      

Unscaled Zero Point Vibrational Energy (zpe) 13491.3 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 12282.5 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 HF/aug-cc-pVTZ
ABC
0.68214 0.08917 0.07886

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.074 0.548 0.000
O2 2.459 -0.313 -0.000
O3 -0.345 0.935 -0.000
H4 3.392 -0.194 0.001
H5 -1.051 1.566 0.001
C6 -0.859 -0.288 -0.000
O7 -2.012 -0.518 0.000
H8 -0.072 -1.031 -0.001

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 O7 H8
H10.94222.45071.51223.28733.05004.22362.6646
O20.94223.06960.94063.98143.31824.47642.6314
O32.45073.06963.90460.94661.32642.21191.9854
H41.51220.94063.90464.77934.25235.41453.5642
H53.28733.98140.94664.77931.86382.29572.7757
C63.05003.31821.32644.25231.86381.17641.0825
O74.22364.47642.21195.41452.29571.17642.0068
H82.66462.63141.98543.56422.77571.08252.0068

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 106.868 H1 O3 H5 147.310
H1 O3 C6 103.674 O2 H1 O3 123.208
O3 C6 O7 124.096 O3 C6 H8 110.602
H5 O3 C6 109.016 O7 C6 H8 125.302
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.251      
2 O -0.412      
3 O -0.258      
4 H 0.167      
5 H 0.178      
6 C -0.027      
7 O -0.583      
8 H 0.684      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.436 2.445 0.002 3.451
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.291 -1.599 0.011
y -1.599 -21.010 0.004
z 0.011 0.004 -24.378
Traceless
 xyz
x -0.598 -1.599 0.011
y -1.599 2.825 0.004
z 0.011 0.004 -2.227
Polar
3z2-r2-4.455
x2-y2-2.282
xy-1.599
xz0.011
yz0.004


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.949 0.151 -0.001
y 0.151 4.182 0.000
z -0.001 0.000 3.188


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