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 FCN (Cyanogen fluoride)

using model chemistry: MP2/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ
Energy calculated at MP2/TZVP
 hartrees
Energy at 0K-192.266966
Energy at 298.15K-192.266749
HF Energy-191.763187
Nuclear repulsion energy55.154854
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 MP2/TZVP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 2280 2162 78.71      
2 Σ 1071 1015 65.22      
3 Π 449 426 6.39      
3 Π 449 426 6.39      

Unscaled Zero Point Vibrational Energy (zpe) 2124.8 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 2014.1 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 MP2/TZVP
B
0.34768

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/TZVP

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.147
F2 0.000 0.000 1.123
N3 0.000 0.000 -1.318

Atom - Atom Distances (Å)
  C1 F2 N3
C11.26931.1710
F21.26932.4403
N31.17102.4403

picture of Cyanogen fluoride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 N3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability