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

using model chemistry: B3LYPultrafine_cp_opt/6-31+G**

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_opt/6-31+G**
 hartrees
Energy at 0K-266.217134
Energy at 298.15K-266.220871
Nuclear repulsion energy69.979524
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_cp_opt/6-31+G**
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 3908 3767 109.17      
2 A 3731 3597 30.06      
3 A 3721 3587 246.95      
4 A 3118 3006 12.57      
5 A 1795 1730 396.83      
6 A 1618 1560 140.94      
7 A 1406 1355 4.20      
8 A 1309 1261 25.97      
9 A 1151 1110 260.14      
10 A 1062 1024 3.18      
11 A 694 669 173.76      
12 A 633 610 54.71      
13 A 490 472 111.07      
14 A 353 340 209.81      
15 A 164 158 6.99      
16 A 72 70 23.26      
17 A 47 46 21.71      
18 A 25 24 149.34      

Unscaled Zero Point Vibrational Energy (zpe) 12648.1 cm-1
Scaled (by 0.964) Zero Point Vibrational Energy (zpe) 12192.8 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_cp_opt/6-31+G**
ABC
0.90670 0.08843 0.08057

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine_cp_opt/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.787 0.392 0.000
O2 2.457 -0.313 0.000
O3 -0.175 0.877 -0.000
H4 3.316 0.123 0.000
C5 -0.719 -0.207 -0.000
O6 -2.047 -0.388 -0.000
H7 -0.191 -1.169 0.000
H8 -2.473 0.488 -0.000

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 O6 H7 H8
H10.97162.02201.55252.57693.91282.51974.2611
O20.97162.88860.96383.17724.50402.78254.9938
O32.02202.88863.57251.21332.25932.04612.3300
H41.55250.96383.57254.04885.38753.73765.8006
C52.57693.17721.21334.04881.34021.09671.8865
O63.91284.50402.25935.38751.34022.01310.9743
H72.51972.78252.04613.73761.09672.01312.8195
H84.26114.99382.33005.80061.88650.97432.8195

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 106.679 H1 O3 C5 102.714
O2 H1 O3 147.425 O3 C5 O6 124.378
O3 C5 H7 124.615 C5 O6 H8 108.151
O6 C5 H7 111.006
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine_cp_opt/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.440      
4 H 0.000      
5 C 0.337      
6 O -0.397      
7 H 0.138      
8 H 0.362      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.356 1.054 -0.000 1.718
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.851 1.134 -0.001
y 1.134 -25.753 0.000
z -0.001 0.000 -25.125
Traceless
 xyz
x 7.588 1.134 -0.001
y 1.134 -4.265 0.000
z -0.001 0.000 -3.324
Polar
3z2-r2-6.647
x2-y27.902
xy1.134
xz-0.001
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.580 0.361 0.000
y 0.361 3.536 -0.000
z 0.000 -0.000 1.939


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