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All results from a given calculation for C2N2 (Cyanogen)

using model chemistry: B97D3/cc-pVTZ

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 B97D3/cc-pVTZ
 hartrees
Energy at 0K-185.598970
Energy at 298.15K-185.598160
HF Energy-185.598970
Nuclear repulsion energy76.591232
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 B97D3/cc-pVTZ
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 2337 2304 0.00      
2 Σg 869 857 0.00      
3 Σu 2180 2149 0.43      
4 Πg 536 528 0.00      
4 Πg 536 528 0.00      
5 Πu 242 239 19.24      
5 Πu 242 239 19.24      

Unscaled Zero Point Vibrational Energy (zpe) 3470.7 cm-1
Scaled (by 0.986) Zero Point Vibrational Energy (zpe) 3422.1 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 B97D3/cc-pVTZ
B
0.15723

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/cc-pVTZ

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 1.851
N4 0.000 0.000 -1.851

Atom - Atom Distances (Å)
  C1 C2 N3 N4
C11.37331.16382.5372
C21.37332.53721.1638
N31.16382.53723.7010
N42.53721.16383.7010

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 B97D3/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.011      
2 C 0.011      
3 N -0.011      
4 N -0.011      


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
Primitive
 xyz
x -20.764 0.000 0.000
y 0.000 -20.764 0.000
z 0.000 0.000 -29.607
Traceless
 xyz
x 4.422 0.000 0.000
y 0.000 4.422 0.000
z 0.000 0.000 -8.843
Polar
3z2-r2-17.686
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.703 0.000 0.000
y 0.000 2.703 0.000
z 0.000 0.000 8.211


<r2> (average value of r2) Å2
<r2> 68.409
(<r2>)1/2 8.271