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All results from a given calculation for HCOOHH2O (Formic acid water dimer)

using model chemistry: B3LYPultrafine_cp/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 B3LYPultrafine_cp/aug-cc-pVTZ
 hartrees
Energy at 0K-266.324983
Energy at 298.15K-266.318218
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/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 3861 3735 90.21      
2 A 3637 3519 252.45      
3 A 3329 3221 592.93      
4 A 3049 2949 73.19      
5 A 1766 1709 331.91      
6 A 1623 1570 126.87      
7 A 1450 1403 1.93      
8 A 1386 1341 16.36      
9 A 1210 1170 223.27      
10 A 1068 1033 6.96      
11 A 920 890 115.68      
12 A 699 676 42.21      
13 A 608 589 152.29      
14 A 369 357 67.13      
15 A 271 262 97.28      
16 A 217 210 27.98      
17 A 190 183 40.18      
18 A 168 163 13.81      

Unscaled Zero Point Vibrational Energy (zpe) 12909.5 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 12489.9 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/aug-cc-pVTZ
ABC
0.39427 0.16573 0.11744

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/aug-cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.401 0.966 0.002
O2 -0.575 1.131 0.007
O3 1.898 -0.001 -0.090
C4 -1.202 -0.038 0.008
O5 -0.671 -1.126 0.004
H6 -2.289 0.100 0.014
H7 2.563 -0.085 0.599
H8 1.325 -0.785 -0.027

Atom - Atom Distances (Å)
  H1 O2 O3 C4 O5 H6 H7 H8
H10.99001.78441.89132.35032.82562.47771.9798
O20.99002.72141.32612.25831.99953.41782.6981
O31.78442.72143.10142.80584.18910.96160.9731
C41.89131.32613.10141.21021.09583.81162.6348
O52.35032.25832.80581.21022.02973.44932.0248
H62.82561.99954.18911.09582.02974.89093.7205
H72.47773.41780.96163.81163.44934.89091.5541
H81.97982.69810.97312.63482.02483.72051.5541

picture of Formic acid water dimer state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.268      
2 O -0.302      
3 O -0.373      
4 C 0.013      
5 O -0.527      
6 H 0.508      
7 H 0.155      
8 H 0.259      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.584 0.288 1.196 1.362
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