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

using model chemistry: B3LYPultrafine_cp/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_cp/3-21G
 hartrees
Energy at 0K-264.674512
Energy at 298.15K-264.667657
Nuclear repulsion energy 
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 3531 3407 25.23      
2 A 3441 3321 12.78      
3 A 3373 3255 95.63      
4 A 3159 3048 9.01      
5 A 1717 1657 41.88      
6 A 1702 1642 222.63      
7 A 1377 1329 10.30      
8 A 1345 1298 9.23      
9 A 1151 1110 8.54      
10 A 1092 1053 184.93      
11 A 713 688 436.40      
12 A 705 680 186.48      
13 A 615 594 132.49      
14 A 348 336 98.79      
15 A 310 299 110.56      
16 A 234 226 0.21      
17 A 167 161 29.71      
18 A 151 145 11.22      

Unscaled Zero Point Vibrational Energy (zpe) 12564.6 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 12123.6 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
0.65751 0.10820 0.09379

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 -1.683 0.506 -0.145
O2 -2.226 -0.334 -0.094
O3 0.176 1.030 0.009
H4 -2.576 -0.350 0.838
C5 0.560 -0.141 -0.014
O6 1.869 -0.521 0.010
H7 -0.111 -0.995 -0.058
H8 2.453 0.290 0.042

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 O6 H7 H8
H11.00131.93761.57962.33873.70122.17584.1458
O21.00132.76360.99552.79384.10032.21604.7217
O31.93762.76363.18751.23212.29632.04642.3942
H41.57960.99553.18753.25634.52442.70075.1310
C52.33872.79381.23213.25631.36321.08771.9416
O63.70124.10032.29634.52441.36322.03701.0002
H72.17582.21602.04642.70071.08772.03702.8696
H84.14584.72172.39425.13101.94161.00022.8696

picture of Water formic acid dimer 2 state 1 conformation 1
More geometry information
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 0.342      
2 O -0.662      
3 O -0.479      
4 H 0.318      
5 C 0.404      
6 O -0.528      
7 H 0.239      
8 H 0.365      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.664 0.655 1.583 2.388
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


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