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All results from a given calculation for C2N2 (Cyanogen)

using model chemistry: B97D3/6-311+G(3df,2p)

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 B97D3/6-311+G(3df,2p)
 hartrees
Energy at 0K-185.597307
Energy at 298.15K-185.596520
HF Energy-185.597307
Nuclear repulsion energy76.617542
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 B97D3/6-311+G(3df,2p)
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 2334 2303 0.00      
2 Σg 869 858 0.00      
3 Σu 2180 2152 0.33      
4 Πg 551 543 0.00      
4 Πg 551 543 0.00      
5 Πu 245 241 20.15      
5 Πu 245 241 20.15      

Unscaled Zero Point Vibrational Energy (zpe) 3486.4 cm-1
Scaled (by 0.987) Zero Point Vibrational Energy (zpe) 3441.1 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 B97D3/6-311+G(3df,2p)
B
0.15733

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311+G(3df,2p)

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 1.850
N4 0.000 0.000 -1.850

Atom - Atom Distances (Å)
  C1 C2 N3 N4
C11.37301.16342.5364
C21.37302.53641.1634
N31.16342.53643.6997
N42.53641.16343.6997

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 B97D3/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.064      
2 C 1.064      
3 N -1.064      
4 N -1.064      


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 -20.912 0.000 0.000
y 0.000 -20.912 0.000
z 0.000 0.000 -30.043
Traceless
 xyz
x 4.565 0.000 0.000
y 0.000 4.565 0.000
z 0.000 0.000 -9.131
Polar
3z2-r2-18.262
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 3.268 0.000 0.000
y 0.000 3.268 0.000
z 0.000 0.000 8.733


<r2> (average value of r2) Å2
<r2> 68.526
(<r2>)1/2 8.278