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: LSDA/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 LSDA/3-21G*
 hartrees
Energy at 0K-145.830555
Energy at 298.15K-145.830355
HF Energy-145.830555
Nuclear repulsion energy46.288613
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 LSDA/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 1227 1205 0.00      
2 Σu 1621 1592 95.44      
3 Πu 473 465 13.98      
3 Πu 473 465 13.98      

Unscaled Zero Point Vibrational Energy (zpe) 1897.0 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 1862.9 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 LSDA/3-21G*
B
0.39123

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/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 1.240
N3 0.000 0.000 -1.240

Atom - Atom Distances (Å)
  C1 N2 N3
C11.24041.2404
N21.24042.4808
N31.24042.4808

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 LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.513      
2 N -0.257      
3 N -0.257      


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 -15.332 0.000 0.000
y 0.000 -15.332 0.000
z 0.000 0.000 -20.626
Traceless
 xyz
x 2.647 0.000 0.000
y 0.000 2.647 0.000
z 0.000 0.000 -5.294
Polar
3z2-r2-10.587
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 1.333 0.000 0.000
y 0.000 1.333 0.000
z 0.000 0.000 4.386


<r2> (average value of r2) Å2
<r2> 32.218
(<r2>)1/2 5.676

State 2 (1Σg)

Jump to S1C1
Energy calculated at LSDA/3-21G*
 hartrees
Energy at 0K-145.781488
Energy at 298.15K-145.781281
HF Energy-145.781488
Nuclear repulsion energy46.298851
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 LSDA/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 1233 1211 0.00      
2 Σu 1894 1860 41.58      
3 Πu 511 501 2.04      
3 Πu 426 418 33.98      

Unscaled Zero Point Vibrational Energy (zpe) 2031.6 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 1995.1 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 LSDA/3-21G*
B
0.39140

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/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 1.240
N3 0.000 0.000 -1.240

Atom - Atom Distances (Å)
  C1 N2 N3
C11.24011.2401
N21.24012.4802
N31.24012.4802

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 LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.528      
2 N -0.264      
3 N -0.264      


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 -16.669 0.000 0.000
y 0.000 -14.060 0.000
z 0.000 0.000 -20.663
Traceless
 xyz
x 0.692 0.000 0.000
y 0.000 4.606 0.000
z 0.000 0.000 -5.299
Polar
3z2-r2-10.597
x2-y2-2.609
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.333 0.000 0.000
y 0.000 1.333 0.000
z 0.000 0.000 4.386


<r2> (average value of r2) Å2
<r2> 32.230
(<r2>)1/2 5.677