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/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-147.109553
Energy at 298.15K-147.109262
HF Energy-146.728267
Nuclear repulsion energy46.103907
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/cc-pVDZ
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 1247 1181 0.00      
2 Σu 1392 1319 300.34      
3 Πu 421 399 14.50      
3 Πu 421 399 14.50      

Unscaled Zero Point Vibrational Energy (zpe) 1740.1 cm-1
Scaled (by 0.9473) Zero Point Vibrational Energy (zpe) 1648.4 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/cc-pVDZ
B
0.38811

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/cc-pVDZ

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 1.245
N3 0.000 0.000 -1.245

Atom - Atom Distances (Å)
  C1 N2 N3
C11.24541.2454
N21.24542.4907
N31.24542.4907

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/cc-pVDZ
 hartrees
Energy at 0K-147.050434
Energy at 298.15K-147.050148
HF Energy-146.624238
Nuclear repulsion energy46.325851
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/cc-pVDZ
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 1287 1219 0.00      
2 Σu 1739 1647 166.20      
3 Πu 545 516 7.51      
3 Πu 319 302 27.70      

Unscaled Zero Point Vibrational Energy (zpe) 1944.4 cm-1
Scaled (by 0.9473) Zero Point Vibrational Energy (zpe) 1841.9 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 CCSD/cc-pVDZ
B
0.39186

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/cc-pVDZ

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 1.239
N3 0.000 0.000 -1.239

Atom - Atom Distances (Å)
  C1 N2 N3
C11.23941.2394
N21.23942.4788
N31.23942.4788

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