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All results from a given calculation for C2N2 (Cyanogen)

using model chemistry: B3LYPultrafine/6-31G*

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/6-31G*
 hartrees
Energy at 0K-185.654611
Energy at 298.15K-185.653858
HF Energy-185.654611
Nuclear repulsion energy76.465556
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/6-31G*
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 2443 2341 0.00      
2 Σg 892 855 0.00      
3 Σu 2276 2181 0.01      
4 Πg 564 541 0.00      
4 Πg 564 541 0.00      
5 Πu 255 244 19.36      
5 Πu 255 244 19.36      

Unscaled Zero Point Vibrational Energy (zpe) 3625.1 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 3472.8 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 B3LYPultrafine/6-31G*
B
0.15655

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G*

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.690
C2 0.000 0.000 -0.690
N3 0.000 0.000 1.854
N4 0.000 0.000 -1.854

Atom - Atom Distances (Å)
  C1 C2 N3 N4
C11.38021.16372.5440
C21.38022.54401.1637
N31.16372.54403.7077
N42.54401.16373.7077

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/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.419      
2 C 0.419      
3 N -0.419      
4 N -0.419      


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 -20.503 0.000 0.000
y 0.000 -20.503 0.000
z 0.000 0.000 -29.465
Traceless
 xyz
x 4.481 0.000 0.000
y 0.000 4.481 0.000
z 0.000 0.000 -8.962
Polar
3z2-r2-17.924
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 2.011 0.000 0.000
y 0.000 2.011 0.000
z 0.000 0.000 7.556


<r2> (average value of r2) Å2
<r2> 68.501
(<r2>)1/2 8.277