return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for NCN (Cyanoimidogen)

using model chemistry: B3LYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 3Σg
2 1 yes D*H 1Σg

State 1 (3Σg)

Jump to S2C1
Energy calculated at B3LYP/6-31G
 hartrees
Energy at 0K-147.441081
Energy at 298.15K-147.440723
HF Energy-147.441081
Nuclear repulsion energy46.049657
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 B3LYP/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 1229 1182 0.00      
2 Σu 1488 1432 136.76      
3 Πu 388 373 13.09      
3 Πu 388 373 13.09      

Unscaled Zero Point Vibrational Energy (zpe) 1746.4 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 1680.0 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 B3LYP/6-31G
B
0.38720

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
N2 0.000 0.000 1.247
N3 0.000 0.000 -1.247

Atom - Atom Distances (Å)
  C1 N2 N3
C11.24681.2468
N21.24682.4936
N31.24682.4936

picture of Cyanoimidogen state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N2 C1 N3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.237      
2 N -0.118      
3 N -0.118      


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 -15.454 0.000 0.000
y 0.000 -15.454 0.000
z 0.000 0.000 -21.277
Traceless
 xyz
x 2.912 0.000 0.000
y 0.000 2.912 0.000
z 0.000 0.000 -5.823
Polar
3z2-r2-11.647
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 1.532 0.000 0.000
y 0.000 1.532 0.000
z 0.000 0.000 4.931


<r2> (average value of r2) Å2
<r2> 32.629
(<r2>)1/2 5.712

State 2 (1Σg)

Jump to S1C1
Energy calculated at B3LYP/6-31G
 hartrees
Energy at 0K-147.385878
Energy at 298.15K-147.385537
HF Energy-147.385878
Nuclear repulsion energy46.183594
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 B3LYP/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 1257 1209 0.00      
2 Σu 1786 1718 55.09      
3 Πu 432 416 3.66      
3 Πu 355 342 28.84      

Unscaled Zero Point Vibrational Energy (zpe) 1915.0 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 1842.3 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 B3LYP/6-31G
B
0.38945

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
N2 0.000 0.000 1.243
N3 0.000 0.000 -1.243

Atom - Atom Distances (Å)
  C1 N2 N3
C11.24321.2432
N21.24322.4864
N31.24322.4864

picture of Cyanoimidogen state 2 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N2 C1 N3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.255      
2 N -0.127      
3 N -0.127      


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 -16.865 0.000 0.000
y 0.000 -14.179 0.000
z 0.000 0.000 -21.300
Traceless
 xyz
x 0.874 0.000 0.000
y 0.000 4.904 0.000
z 0.000 0.000 -5.778
Polar
3z2-r2-11.556
x2-y2-2.686
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.170 0.000 0.000
y 0.000 1.612 0.000
z 0.000 0.000 5.152


<r2> (average value of r2) Å2
<r2> 32.536
(<r2>)1/2 5.704