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: PBE1PBE/TZVP

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 PBE1PBE/TZVP
 hartrees
Energy at 0K-147.367267
Energy at 298.15K-147.367025
HF Energy-147.367267
Nuclear repulsion energy46.916336
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 PBE1PBE/TZVP
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 1289 1237 0.00      
2 Σu 1548 1486 224.31      
3 Πu 443 426 18.89      
3 Πu 443 426 18.89      

Unscaled Zero Point Vibrational Energy (zpe) 1862.1 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 1786.9 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 PBE1PBE/TZVP
B
0.40191

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/TZVP

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 1.224
N3 0.000 0.000 -1.224

Atom - Atom Distances (Å)
  C1 N2 N3
C11.22381.2238
N21.22382.4476
N31.22382.4476

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 PBE1PBE/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.055      
2 N -0.027      
3 N -0.027      


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 -15.596 0.000 0.000
y 0.000 -15.596 0.000
z 0.000 0.000 -20.748
Traceless
 xyz
x 2.576 0.000 0.000
y 0.000 2.576 0.000
z 0.000 0.000 -5.152
Polar
3z2-r2-10.304
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 1.905 0.000 0.000
y 0.000 1.905 0.000
z 0.000 0.000 5.468


<r2> (average value of r2) Å2
<r2> 31.781
(<r2>)1/2 5.637

State 2 (1Σg)

Jump to S1C1
Energy calculated at PBE1PBE/TZVP
 hartrees
Energy at 0K-147.308393
Energy at 298.15K-147.308149
HF Energy-147.308393
Nuclear repulsion energy47.062038
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 PBE1PBE/TZVP
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 1321 1268 0.00      
2 Σu 1871 1796 64.99      
3 Πu 562 539 8.45      
3 Πu 343 329 34.97      

Unscaled Zero Point Vibrational Energy (zpe) 2048.7 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 1966.0 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 PBE1PBE/TZVP
B
0.40441

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/TZVP

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 1.220
N3 0.000 0.000 -1.220

Atom - Atom Distances (Å)
  C1 N2 N3
C11.22001.2200
N21.22002.4400
N31.22002.4400

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 PBE1PBE/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.086      
2 N -0.043      
3 N -0.043      


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 -14.356 0.000 0.000
y 0.000 -17.056 0.000
z 0.000 0.000 -20.815
Traceless
 xyz
x 4.580 0.000 0.000
y 0.000 0.529 0.000
z 0.000 0.000 -5.109
Polar
3z2-r2-10.217
x2-y22.700
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.899 0.000 0.000
y 0.000 1.735 0.000
z 0.000 0.000 5.638


<r2> (average value of r2) Å2
<r2> 31.711
(<r2>)1/2 5.631