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

using model chemistry: B3LYP_cp_opt/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 B3LYP_cp_opt/3-21G
 hartrees
Energy at 0K-264.678470
Energy at 298.15K-264.682179
Nuclear repulsion energy68.951509
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 B3LYP_cp_opt/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 3530 3406 34.77      
2 A 3451 3330 17.16      
3 A 3377 3259 153.26      
4 A 3109 3000 33.60      
5 A 1750 1689 282.06      
6 A 1725 1665 43.95      
7 A 1425 1375 3.17      
8 A 1338 1291 8.61      
9 A 1081 1043 6.38      
10 A 1080 1042 219.39      
11 A 696 672 209.54      
12 A 617 595 60.01      
13 A 521 503 176.01      
14 A 335 323 130.98      
15 A 150 144 4.81      
16 A 74 72 106.36      
17 A 40 38 0.48      
18 A 30 28 5.27      

Unscaled Zero Point Vibrational Energy (zpe) 12163.7 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 11736.8 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 B3LYP_cp_opt/3-21G
ABC
1.69616 0.06987 0.06710

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP_cp_opt/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.852 -0.084 -0.002
O2 2.810 0.205 -0.002
O3 -0.072 -0.531 -0.000
H4 3.320 -0.649 0.013
C5 -0.935 0.337 0.001
O6 -2.281 0.098 -0.000
H7 -0.774 1.417 0.004
H8 -2.445 -0.888 -0.003

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 O6 H7 H8
H11.00081.97491.57312.81904.13773.02464.3712
O21.00082.97420.99553.74765.09273.78305.3672
O31.97492.97423.39391.22412.29762.07002.3997
H41.57310.99553.39394.36825.65144.58575.7697
C52.81903.74761.22414.36821.36731.09161.9440
O64.13775.09272.29765.65141.36732.00290.9998
H73.02463.78302.07004.58571.09162.00292.8467
H84.37125.36722.39975.76971.94400.99982.8467

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 103.998 H1 O3 C5 121.803
O2 H1 O3 176.231 O3 C5 O6 124.810
O3 C5 H7 126.632 C5 O6 H8 109.441
O6 C5 H7 108.558
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP_cp_opt/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.455      
4 H 0.000      
5 C 0.422      
6 O -0.533      
7 H 0.200      
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
  -3.148 -1.831 0.025 3.642
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.862 -2.320 0.101
y -2.320 -20.588 -0.007
z 0.101 -0.007 -23.321
Traceless
 xyz
x -4.907 -2.320 0.101
y -2.320 4.503 -0.007
z 0.101 -0.007 0.404
Polar
3z2-r20.807
x2-y2-6.274
xy-2.320
xz0.101
yz-0.007


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.669 -0.063 0.017
y -0.063 2.576 0.012
z 0.017 0.012 0.878


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