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

using model chemistry: B3LYPultrafine_cp/6-31G*

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/6-31G*
 hartrees
Energy at 0K-266.167885
Energy at 298.15K-266.160146
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/6-31G*
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 3833 3672 55.49      
2 A 3717 3561 19.22      
3 A 3667 3513 48.23      
4 A 3123 2991 11.58      
5 A 1856 1778 300.26      
6 A 1721 1649 70.77      
7 A 1415 1356 12.84      
8 A 1296 1242 4.72      
9 A 1128 1081 264.90      
10 A 1076 1030 1.92      
11 A 690 661 156.91      
12 A 625 599 49.96      
13 A 461 442 255.18      
14 A 229 219 112.24      
15 A 180 173 84.45      
16 A 143 137 0.24      
17 A 104 100 12.03      
18 A 82 78 9.65      

Unscaled Zero Point Vibrational Energy (zpe) 12672.8 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 12140.5 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/6-31G*
ABC
0.64961 0.09636 0.08459

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.849 0.487 -0.176
O2 2.382 -0.321 -0.095
O3 -0.249 0.951 0.010
H4 2.730 -0.276 0.809
H5 -0.989 1.589 0.002
C6 -0.799 -0.292 0.003
O7 -1.983 -0.506 0.003
H8 0.007 -1.036 -0.002

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 O7 H8
H10.97092.15681.52613.04962.76623.96282.3964
O20.97092.92430.96903.87573.18344.37082.4827
O32.15682.92433.31960.97721.35912.26512.0035
H41.52610.96903.31964.23833.62064.78782.9415
H53.04963.87570.97724.23831.89052.31922.8079
C62.76623.18341.35913.62061.89051.20321.0974
O73.96284.37082.26514.78782.31921.20322.0597
H82.39642.48272.00352.94152.80791.09742.0597

picture of Water formic acid dimer 1 state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.408      
2 O -0.790      
3 O -0.550      
4 H 0.388      
5 H 0.411      
6 C 0.358      
7 O -0.403      
8 H 0.179      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.693 2.293 1.403 2.776
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> 123.364
(<r2>)1/2 11.107