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All results from a given calculation for C2N2 (Cyanogen)

using model chemistry: B3LYPultrafine/cc-pVDZ

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 B3LYPultrafine/cc-pVDZ
 hartrees
Energy at 0K-185.668558
Energy at 298.15K-185.667812
HF Energy-185.668558
Nuclear repulsion energy76.377610
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 B3LYPultrafine/cc-pVDZ
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 2440 2367 0.00      
2 Σg 891 864 0.00      
3 Σu 2264 2196 0.06      
4 Πg 556 539 0.00      
4 Πg 556 539 0.00      
5 Πu 255 248 16.86      
5 Πu 255 248 16.86      

Unscaled Zero Point Vibrational Energy (zpe) 3608.7 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 3500.5 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 B3LYPultrafine/cc-pVDZ
B
0.15613

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/cc-pVDZ

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.692
C2 0.000 0.000 -0.692
N3 0.000 0.000 1.856
N4 0.000 0.000 -1.856

Atom - Atom Distances (Å)
  C1 C2 N3 N4
C11.38361.16432.5479
C21.38362.54791.1643
N31.16432.54793.7122
N42.54791.16433.7122

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 B3LYPultrafine/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.037      
2 C 0.037      
3 N -0.037      
4 N -0.037      


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 -20.673 0.000 0.000
y 0.000 -20.673 0.000
z 0.000 0.000 -29.038
Traceless
 xyz
x 4.182 0.000 0.000
y 0.000 4.182 0.000
z 0.000 0.000 -8.365
Polar
3z2-r2-16.729
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 2.133 0.000 0.000
y 0.000 2.133 0.000
z 0.000 0.000 7.374


<r2> (average value of r2) Å2
<r2> 68.629
(<r2>)1/2 8.284