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

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/3-21G
 hartrees
Energy at 0K-264.690060
Energy at 298.15K-264.694669
Counterpoise corrected energy-264.676934
CP Energy at 298.15K-264.680620
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy118.448551
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/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 3545 3421 24.54      
2 A 3461 3339 11.18      
3 A 3411 3291 39.19      
4 A 3095 2987 14.96      
5 A 1774 1712 194.04      
6 A 1709 1649 49.80      
7 A 1412 1362 32.05      
8 A 1255 1211 35.94      
9 A 1160 1119 8.10      
10 A 1029 993 245.29      
11 A 666 643 292.43      
12 A 657 634 200.20      
13 A 588 567 90.72      
14 A 355 343 108.89      
15 A 268 258 87.55      
16 A 212 204 3.25      
17 A 167 161 27.33      
18 A 145 140 14.06      

Unscaled Zero Point Vibrational Energy (zpe) 12453.2 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 12016.1 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/3-21G
ABC
0.56941 0.11177 0.09436

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.687 0.507 -0.182
O2 2.188 -0.353 -0.094
O3 -0.202 1.020 0.010
H4 2.491 -0.371 0.854
H5 -0.958 1.672 0.024
C6 -0.701 -0.287 -0.011
O7 -1.886 -0.561 0.011
H8 0.181 -0.931 -0.051

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 O7 H8
H10.99891.96721.57792.89832.52243.73412.0858
O20.99892.75830.99593.74362.89064.08022.0884
O31.96722.75833.14660.99861.39962.30971.9889
H41.57790.99593.14664.09433.30824.46152.5435
H52.89833.74360.99864.09431.97632.41772.8420
C62.52242.89061.39963.30821.97631.21631.0924
O73.73414.08022.30974.46152.41771.21632.1007
H82.08582.08841.98892.54352.84201.09242.1007

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 104.557 H1 O3 H5 154.060
H1 O3 C6 95.565 O2 H1 O3 134.223
O3 C6 O7 123.854 O3 C6 H8 105.238
H5 O3 C6 109.868 O7 C6 H8 130.908
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.347      
2 O -0.643      
3 O -0.556      
4 H 0.324      
5 H 0.364      
6 C 0.376      
7 O -0.451      
8 H 0.238      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.544 2.430 1.522 2.919
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.410 -2.165 4.240
y -2.165 -20.837 -0.835
z 4.240 -0.835 -21.748
Traceless
 xyz
x -7.118 -2.165 4.240
y -2.165 4.242 -0.835
z 4.240 -0.835 2.875
Polar
3z2-r25.750
x2-y2-7.573
xy-2.165
xz4.240
yz-0.835


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.871 -0.029 0.295
y -0.029 3.226 -0.061
z 0.295 -0.061 1.646


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