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All results from a given calculation for H2O2 (Hydrogen peroxide)

using model chemistry: BLYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
1 2 no C2h 1Ag

Conformer 1 (C2)

Jump to S1C2
Energy calculated at BLYP/6-31G
 hartrees
Energy at 0K-151.475124
Energy at 298.15K-151.476970
HF Energy-151.475124
Nuclear repulsion energy34.564920
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 BLYP/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 3432 3406 0.00 140.32 0.36 0.52
2 A 1422 1411 0.00 13.44 0.71 0.83
3 A 820 814 0.00 12.87 0.26 0.42
4 A 94 94 374.36 0.00 0.74 0.85
5 B 3453 3426 21.25 0.00 0.75 0.86
6 B 1111 1102 143.36 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5165.7 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 5126.5 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 BLYP/6-31G
ABC
9.29517 0.78211 0.72141

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.786 -0.000
O2 0.000 -0.786 -0.000
H3 0.991 0.900 0.001
H4 -0.991 -0.900 0.001

Atom - Atom Distances (Å)
  O1 O2 H3 H4
O11.57170.99731.9555
O21.57171.95550.9973
H30.99731.95552.6770
H41.95550.99732.6770

picture of Hydrogen peroxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 O2 H4 96.572 O2 O1 H3 96.572
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.379      
2 O -0.379      
3 H 0.379      
4 H 0.379      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.003 0.003
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -8.065 3.831 0.000
y 3.831 -11.413 0.000
z 0.000 0.000 -12.720
Traceless
 xyz
x 4.002 3.831 0.000
y 3.831 -1.020 0.000
z 0.000 0.000 -2.982
Polar
3z2-r2-5.964
x2-y23.348
xy3.831
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.746 0.419 0.000
y 0.419 2.286 0.000
z 0.000 0.000 0.324


<r2> (average value of r2) Å2
<r2> 20.168
(<r2>)1/2 4.491

Conformer 2 (C2h)

Jump to S1C1
Energy calculated at BLYP/6-31G
 hartrees
Energy at 0K-151.475119
Energy at 298.15K-151.476980
HF Energy-151.475119
Nuclear repulsion energy34.568438
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 BLYP/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 Ag 3432 3406 0.00      
2 Ag 1422 1411 0.00      
3 Ag 820 814 0.00      
4 Au 103 102 374.34      
5 Bu 3453 3427 21.22      
6 Bu 1111 1103 143.34      

Unscaled Zero Point Vibrational Energy (zpe) 5170.5 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 5131.2 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 BLYP/6-31G
ABC
9.29439 0.78237 0.72162

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.786 0.000
O2 0.000 -0.786 0.000
H3 0.991 0.900 0.000
H4 -0.991 -0.900 0.000

Atom - Atom Distances (Å)
  O1 O2 H3 H4
O11.57140.99741.9553
O21.57141.95530.9974
H30.99741.95532.6771
H41.95530.99742.6771

picture of Hydrogen peroxide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 O2 H4 96.578 O2 O1 H3 96.578
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.379      
2 O -0.379      
3 H 0.379      
4 H 0.379      


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


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -8.064 3.831 0.000
y 3.831 -11.413 0.000
z 0.000 0.000 -12.720
Traceless
 xyz
x 4.002 3.831 0.000
y 3.831 -1.021 0.000
z 0.000 0.000 -2.982
Polar
3z2-r2-5.964
x2-y23.349
xy3.831
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.746 0.419 0.000
y 0.419 2.285 0.000
z 0.000 0.000 0.324


<r2> (average value of r2) Å2
<r2> 20.165
(<r2>)1/2 4.490