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All results from a given calculation for ONNO (NO dimer)

using model chemistry: PM3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description

Conformer 1 (cis C2V)

Jump to S1C2
Energy calculated at PM3
 hartrees
Energy at 0K 
Energy at 298.15K0.071330
HF Energy0.071330
Nuclear repulsion energy80.754759
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 PM3
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 548 533 0.30      
2 A1 260 253 3.50      
3 A2 195i 190i 0.00      
4 B2 2069 2015 576.23      
5 B2 653 636 29.33      
6 A1 2079 2025 51.69      

Unscaled Zero Point Vibrational Energy (zpe) 2706.5 cm-1
Scaled (by 0.974) Zero Point Vibrational Energy (zpe) 2636.1 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 PM3
ABC
1.05312 0.22824 0.18758

See section I.F.4 to change rotational constant units
Geometric Data calculated at PM3

Point Group is C2v

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PM3 Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 7 0.000 0.801 0.552  
2 7 0.000 -0.801 0.552  
3 8 0.000 1.322 -0.483  
4 8 0.000 -1.322 -0.483  


Electric dipole moments


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

Conformer 2 (trans C2H)

Jump to S1C1
Energy calculated at PM3
 hartrees
Energy at 0K 
Energy at 298.15K0.067747
HF Energy0.067747
Nuclear repulsion energy80.042425
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 PM3
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 2095 2041 0.00      
2 Ag 714 696 0.00      
3 Ag 355 346 0.00      
4 Au 116i 113i 0.50      
5 Bu 2062 2008 563.17      
6 Bu 345 336 9.60      

Unscaled Zero Point Vibrational Energy (zpe) 2727.4 cm-1
Scaled (by 0.974) Zero Point Vibrational Energy (zpe) 2656.5 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 PM3
ABC
2.53149 0.17668 0.16516

See section I.F.4 to change rotational constant units
Geometric Data calculated at PM3

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.370 0.692 0.000
N2 0.370 -0.692 0.000
O3 0.370 1.586 0.000
O4 -0.370 -1.586 0.000

Atom - Atom Distances (Å)
  N1 N2 O3 O4
N11.56931.15992.2780
N21.56932.27801.1599
O31.15992.27803.2568
O42.27801.15993.2568

picture of NO dimer state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 N2 O4 112.294 N2 N1 O3 112.294
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability