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: CCSD(T)=FULL/cc-pVQZ

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 CCSD(T)=FULL/cc-pVQZ
 hartrees
Energy at 0K-147.377018
Energy at 298.15K-147.376748
HF Energy-146.772317
Nuclear repulsion energy46.759432
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 CCSD(T)=FULL/cc-pVQZ
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 1263 1220        
2 Σu 1469 1419        
3 Πu 430 415        
3 Πu 430 415        

Unscaled Zero Point Vibrational Energy (zpe) 1796.2 cm-1
Scaled (by 0.9656) Zero Point Vibrational Energy (zpe) 1734.4 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 CCSD(T)=FULL/cc-pVQZ
B
0.39941

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/cc-pVQZ

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 1.228
N3 0.000 0.000 -1.228

Atom - Atom Distances (Å)
  C1 N2 N3
C11.22761.2276
N21.22762.4552
N31.22762.4552

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

State 2 (1Σg)

Jump to S1C1
Energy calculated at CCSD(T)=FULL/cc-pVQZ
 hartrees
Energy at 0K-147.330692
Energy at 298.15K-147.330404
HF Energy-146.670977
Nuclear repulsion energy46.795933
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 CCSD(T)=FULL/cc-pVQZ
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 1268 1225        
2 Σu 1833 1770        
3 Πu 548 529        
3 Πu 316 305        

Unscaled Zero Point Vibrational Energy (zpe) 1982.3 cm-1
Scaled (by 0.9656) Zero Point Vibrational Energy (zpe) 1914.1 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 CCSD(T)=FULL/cc-pVQZ
B
0.40003

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/cc-pVQZ

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 1.227
N3 0.000 0.000 -1.227

Atom - Atom Distances (Å)
  C1 N2 N3
C11.22671.2267
N21.22672.4533
N31.22672.4533

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