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All results from a given calculation for C2N2 (Cyanogen)

using model chemistry: TPSSh/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 1Σg
Energy calculated at TPSSh/6-311G*
 hartrees
Energy at 0K-185.707092
Energy at 298.15K-185.706354
HF Energy-185.707092
Nuclear repulsion energy76.741825
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 TPSSh/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 Σg 2409 2320 0.00      
2 Σg 884 852 0.00      
3 Σu 2235 2153 0.03      
4 Πg 568 547 0.00      
4 Πg 568 547 0.00      
5 Πu 256 246 18.53      
5 Πu 256 246 18.53      

Unscaled Zero Point Vibrational Energy (zpe) 3586.8 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 3454.8 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 TPSSh/6-311G*
B
0.15775

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

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.687
C2 0.000 0.000 -0.687
N3 0.000 0.000 1.847
N4 0.000 0.000 -1.847

Atom - Atom Distances (Å)
  C1 C2 N3 N4
C11.37331.16042.5337
C21.37332.53371.1604
N31.16042.53373.6941
N42.53371.16043.6941

picture of Cyanogen state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 180.000 C2 C1 N3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.231      
2 C 0.231      
3 N -0.231      
4 N -0.231      


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        
AIM        
ESP        


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 2.198 0.000 0.000
y 0.000 2.198 0.000
z 0.000 0.000 7.811


<r2> (average value of r2) Å2
<r2> 68.224
(<r2>)1/2 8.260