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All results from a given calculation for N2F2 (Dinitrogen difluoride, (E)-)

using model chemistry: HF/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at HF/3-21G
 hartrees
Energy at 0K-305.878298
Energy at 298.15K-305.880278
Nuclear repulsion energy113.186827
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 HF/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 Ag 1677 1518 0.00      
2 Ag 1172 1062 0.00      
3 Ag 647 586 0.00      
4 Au 392 355 7.58      
5 Bu 1149 1041 106.54      
6 Bu 433 392 12.33      

Unscaled Zero Point Vibrational Energy (zpe) 2735.1 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 2476.9 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 HF/3-21G
ABC
2.57729 0.15196 0.14350

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
F1 0.584 1.575 0.000
N2 0.584 0.161 0.000
N3 -0.584 -0.161 0.000
F4 -0.584 -1.575 0.000

Atom - Atom Distances (Å)
  F1 N2 N3 F4
F11.41432.09193.3594
N21.41431.21112.0919
N32.09191.21111.4143
F43.35942.09191.4143

picture of Dinitrogen difluoride, (E)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F1 N2 N3 105.385 N2 N3 F4 105.385
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 F -0.218 -0.111   -0.108
2 N 0.218 0.111   0.109
3 N 0.218 0.111   0.106
4 F -0.218 -0.111   -0.107


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 0.000 0.000 0.000 0.000
AIM        
ESP 0.008 -0.002 0.000 0.008


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.799 -0.521 0.000
y -0.521 -22.884 0.000
z 0.000 0.000 -19.093
Traceless
 xyz
x -0.810 -0.521 0.000
y -0.521 -2.439 0.000
z 0.000 0.000 3.249
Polar
3z2-r26.498
x2-y21.086
xy-0.521
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.015 1.061 0.000
y 1.061 3.673 0.000
z 0.000 0.000 0.629


<r2> (average value of r2) Å2
<r2> 69.197
(<r2>)1/2 8.318