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All results from a given calculation for NCN (Cyanoimidogen)

using model chemistry: PBEPBE/3-21G*

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 PBEPBE/3-21G*
 hartrees
Energy at 0K-146.505763
Energy at 298.15K-146.505558
HF Energy-146.505763
Nuclear repulsion energy45.872536
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 PBEPBE/3-21G*
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 1188 1133 0.00      
2 Σu 1518 1447 111.86      
3 Πu 474 452 12.03      
3 Πu 474 452 12.03      

Unscaled Zero Point Vibrational Energy (zpe) 1826.6 cm-1
Scaled (by 0.9535) Zero Point Vibrational Energy (zpe) 1741.7 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 PBEPBE/3-21G*
B
0.38423

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G*

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 1.252
N3 0.000 0.000 -1.252

Atom - Atom Distances (Å)
  C1 N2 N3
C11.25161.2516
N21.25162.5033
N31.25162.5033

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 PBEPBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.564      
2 N -0.282      
3 N -0.282      


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 -15.383 0.000 0.000
y 0.000 -15.383 0.000
z 0.000 0.000 -20.558
Traceless
 xyz
x 2.588 0.000 0.000
y 0.000 2.588 0.000
z 0.000 0.000 -5.175
Polar
3z2-r2-10.350
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 1.343 0.000 0.000
y 0.000 1.343 0.000
z 0.000 0.000 4.470


<r2> (average value of r2) Å2
<r2> 32.618
(<r2>)1/2 5.711

State 2 (1Σg)

Jump to S1C1
Energy calculated at PBEPBE/3-21G*
 hartrees
Energy at 0K-146.452513
Energy at 298.15K-146.452304
HF Energy-146.452513
Nuclear repulsion energy45.892315
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 PBEPBE/3-21G*
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 1196 1141 0.00      
2 Σu 1808 1724 46.35      
3 Πu 510 487 1.71      
3 Πu 428 408 29.92      

Unscaled Zero Point Vibrational Energy (zpe) 1971.7 cm-1
Scaled (by 0.9535) Zero Point Vibrational Energy (zpe) 1880.0 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 PBEPBE/3-21G*
B
0.38456

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G*

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 1.251
N3 0.000 0.000 -1.251

Atom - Atom Distances (Å)
  C1 N2 N3
C11.25111.2511
N21.25112.5022
N31.25112.5022

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 PBEPBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.583      
2 N -0.292      
3 N -0.292      


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 -16.720 0.000 0.000
y 0.000 -14.114 0.000
z 0.000 0.000 -20.591
Traceless
 xyz
x 0.633 0.000 0.000
y 0.000 4.542 0.000
z 0.000 0.000 -5.174
Polar
3z2-r2-10.349
x2-y2-2.606
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.343 0.000 0.000
y 0.000 1.343 0.000
z 0.000 0.000 4.470


<r2> (average value of r2) Å2
<r2> 32.620
(<r2>)1/2 5.711