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

using model chemistry: SVWN/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at SVWN/3-21G*
 hartrees
Energy at 0K-263.393156
Energy at 298.15K-263.398310
Nuclear repulsion energy121.182241
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 SVWN/3-21G*
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 3458 3458 19.77      
2 A 3309 3309 4.01      
3 A 3130 3130 228.55      
4 A 2990 2990 43.12      
5 A 1678 1678 177.08      
6 A 1654 1654 53.14      
7 A 1337 1337 10.24      
8 A 1260 1260 11.32      
9 A 1165 1165 14.93      
10 A 1093 1093 71.24      
11 A 938 938 625.23      
12 A 732 732 171.78      
13 A 605 605 113.27      
14 A 416 416 85.87      
15 A 362 362 124.14      
16 A 302 302 1.87      
17 A 217 217 31.33      
18 A 176 176 17.78      

Unscaled Zero Point Vibrational Energy (zpe) 12410.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12410.0 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 SVWN/3-21G*
ABC
0.65168 0.11921 0.10186

See section I.F.4 to change rotational constant units
Geometric Data calculated at SVWN/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.536 0.510 -0.128
O2 -2.105 -0.339 -0.096
O3 0.133 1.035 0.010
H4 -2.407 -0.398 0.859
C5 0.515 -0.144 -0.019
O6 1.806 -0.519 0.011
H7 -0.216 -0.972 -0.078
H8 2.389 0.309 0.054

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 O6 H7 H8
H11.02301.75531.59952.15593.49981.98573.9342
O21.02302.62851.00312.62873.91661.99234.5427
O31.75532.62853.03761.23912.28292.03882.3697
H41.59951.00313.03763.06234.29962.45144.9142
C52.15592.62871.23913.06231.34451.10661.9286
O63.49983.91662.28294.29961.34452.07411.0132
H71.98571.99232.03882.45141.10662.07412.9056
H83.93424.54272.36974.91421.92861.01322.9056

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 104.258 H1 O3 C5 90.418
O2 H1 O3 140.757 O3 C5 O6 124.115
O3 C5 H7 120.625 C5 O6 H8 108.970
O6 C5 H7 115.260
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at SVWN/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.337      
2 O -0.652      
3 O -0.432      
4 H 0.325      
5 C 0.286      
6 O -0.481      
7 H 0.248      
8 H 0.370      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.945 0.661 1.693 2.662
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.692 1.583 -4.141
y 1.583 -25.826 -0.850
z -4.141 -0.850 -21.976
Traceless
 xyz
x 3.209 1.583 -4.141
y 1.583 -4.492 -0.850
z -4.141 -0.850 1.283
Polar
3z2-r22.565
x2-y25.134
xy1.583
xz-4.141
yz-0.850


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.767 0.031 -0.270
y 0.031 3.010 -0.026
z -0.270 -0.026 1.681


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