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All results from a given calculation for C2N2 (Cyanogen)

using model chemistry: M06-2X/6-31G(2df,p)

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 M06-2X/6-31G(2df,p)
 hartrees
Energy at 0K-185.596872
Energy at 298.15K-185.596163
HF Energy-185.596872
Nuclear repulsion energy76.924920
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 M06-2X/6-31G(2df,p)
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 2521 2401 0.00      
2 Σg 892 849 0.00      
3 Σu 2336 2224 0.02      
4 Πg 581 553 0.00      
4 Πg 581 553 0.00      
5 Πu 259 246 21.18      
5 Πu 259 246 21.18      

Unscaled Zero Point Vibrational Energy (zpe) 3713.5 cm-1
Scaled (by 0.9524) Zero Point Vibrational Energy (zpe) 3536.8 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 M06-2X/6-31G(2df,p)
B
0.15789

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G(2df,p)

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.694
C2 0.000 0.000 -0.694
N3 0.000 0.000 1.844
N4 0.000 0.000 -1.844

Atom - Atom Distances (Å)
  C1 C2 N3 N4
C11.38721.15032.5375
C21.38722.53751.1503
N31.15032.53753.6878
N42.53751.15033.6878

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 M06-2X/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.246      
2 C 0.246      
3 N -0.246      
4 N -0.246      


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 -20.559 0.000 0.000
y 0.000 -20.559 0.000
z 0.000 0.000 -29.175
Traceless
 xyz
x 4.308 0.000 0.000
y 0.000 4.308 0.000
z 0.000 0.000 -8.616
Polar
3z2-r2-17.231
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 2.369 0.000 0.000
y 0.000 2.369 0.000
z 0.000 0.000 7.124


<r2> (average value of r2) Å2
<r2> 68.007
(<r2>)1/2 8.247