return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for NHF2 (difluoramine)

using model chemistry: HSEh1PBE/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HSEh1PBE/6-311G*
 hartrees
Energy at 0K-254.733529
Energy at 298.15K-254.736001
HF Energy-254.733529
Nuclear repulsion energy76.650388
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 HSEh1PBE/6-311G*
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' 3419 3281 0.13      
2 A' 1376 1321 46.81      
3 A' 1044 1002 35.53      
4 A' 524 503 3.11      
5 A" 1515 1454 13.07      
6 A" 943 905 172.58      

Unscaled Zero Point Vibrational Energy (zpe) 4410.4 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 4232.2 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 HSEh1PBE/6-311G*
ABC
1.82392 0.36796 0.31581

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.038 0.579 0.000
H2 -0.941 0.881 0.000
F3 0.038 -0.274 1.088
F4 0.038 -0.274 -1.088

Atom - Atom Distances (Å)
  N1 H2 F3 F4
N11.02381.38271.3827
H21.02381.86421.8642
F31.38271.86422.1759
F41.38271.86422.1759

picture of difluoramine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 N1 F3 100.486 H2 N1 F4 100.486
F3 N1 F4 103.787
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.035      
2 H 0.359      
3 F -0.197      
4 F -0.197      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.744 1.058 0.000 2.040
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.325 -1.831 0.000
y -1.831 -15.238 0.000
z 0.000 0.000 -17.069
Traceless
 xyz
x 1.828 -1.831 0.000
y -1.831 0.459 0.000
z 0.000 0.000 -2.287
Polar
3z2-r2-4.575
x2-y20.913
xy-1.831
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.228 -0.251 0.000
y -0.251 1.459 0.000
z 0.000 0.000 2.128


<r2> (average value of r2) Å2
<r2> 36.411
(<r2>)1/2 6.034