return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for NHF2 (difluoramine)

using model chemistry: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-254.845692
Energy at 298.15K-254.848151
HF Energy-254.845692
Nuclear repulsion energy76.237557
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 mPW1PW91/6-31+G**
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' 3425 3260 1.80      
2 A' 1345 1280 50.73      
3 A' 1036 986 33.72      
4 A' 514 489 2.50      
5 A" 1481 1410 19.65      
6 A" 939 894 191.23      

Unscaled Zero Point Vibrational Energy (zpe) 4369.6 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 4159.0 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 mPW1PW91/6-31+G**
ABC
1.79580 0.36468 0.31274

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.038 0.585 0.000
H2 -0.948 0.874 0.000
F3 0.038 -0.276 1.093
F4 0.038 -0.276 -1.093

Atom - Atom Distances (Å)
  N1 H2 F3 F4
N11.02721.39141.3914
H21.02721.86791.8679
F31.39141.86792.1855
F41.39141.86792.1855

picture of difluoramine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 N1 F3 100.030 H2 N1 F4 100.030
F3 N1 F4 103.501
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.015      
2 H 0.331      
3 F -0.173      
4 F -0.173      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.739 1.119 0.000 2.068
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.632 -1.876 0.000
y -1.876 -15.579 0.000
z 0.000 0.000 -17.407
Traceless
 xyz
x 1.861 -1.876 0.000
y -1.876 0.440 0.000
z 0.000 0.000 -2.302
Polar
3z2-r2-4.603
x2-y20.948
xy-1.876
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.680 -0.173 0.000
y -0.173 1.966 0.000
z 0.000 0.000 2.639


<r2> (average value of r2) Å2
<r2> 36.876
(<r2>)1/2 6.073