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All results from a given calculation for C2N2 (Cyanogen)

using model chemistry: LSDA/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 LSDA/6-311G**
 hartrees
Energy at 0K-184.640816
Energy at 298.15K-184.640091
HF Energy-184.640816
Nuclear repulsion energy76.960259
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 LSDA/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 2396 2367 0.00      
2 Σg 899 888 0.00      
3 Σu 2217 2190 0.30      
4 Πg 572 565 0.00      
4 Πg 572 565 0.00      
5 Πu 254 251 18.99      
5 Πu 254 251 18.99      

Unscaled Zero Point Vibrational Energy (zpe) 3582.1 cm-1
Scaled (by 0.9877) Zero Point Vibrational Energy (zpe) 3538.0 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 LSDA/6-311G**
B
0.15896

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

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.680
C2 0.000 0.000 -0.680
N3 0.000 0.000 1.841
N4 0.000 0.000 -1.841

Atom - Atom Distances (Å)
  C1 C2 N3 N4
C11.36041.16102.5214
C21.36042.52141.1610
N31.16102.52143.6824
N42.52141.16103.6824

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 LSDA/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.156      
2 C 0.156      
3 N -0.156      
4 N -0.156      


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 -20.858 0.000 0.000
y 0.000 -20.858 0.000
z 0.000 0.000 -29.653
Traceless
 xyz
x 4.397 0.000 0.000
y 0.000 4.397 0.000
z 0.000 0.000 -8.795
Polar
3z2-r2-17.589
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 2.217 0.000 0.000
y 0.000 2.217 0.000
z 0.000 0.000 7.836


<r2> (average value of r2) Å2
<r2> 67.872
(<r2>)1/2 8.238