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: MP4=FULL/aug-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 MP4=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-147.138756
Energy at 298.15K-147.138570
HF Energy-146.734928
Nuclear repulsion energy46.496533
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 MP4=FULL/aug-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 1313 1280        
2 Σu 1167 1138        
3 Πu 488 476        
3 Πu 488 476        

Unscaled Zero Point Vibrational Energy (zpe) 1727.9 cm-1
Scaled (by 0.9752) Zero Point Vibrational Energy (zpe) 1685.1 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 MP4=FULL/aug-cc-pVDZ
B
0.39493

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/aug-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 1.235
N3 0.000 0.000 -1.235

Atom - Atom Distances (Å)
  C1 N2 N3
C11.23461.2346
N21.23462.4691
N31.23462.4691

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 MP4=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-147.105545
Energy at 298.15K-147.105266
HF Energy-146.629138
Nuclear repulsion energy45.963827
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 MP4=FULL/aug-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 1230 1200        
2 Σu 1953 1904        
3 Πu 529 516        
3 Πu 335 327        

Unscaled Zero Point Vibrational Energy (zpe) 2023.5 cm-1
Scaled (by 0.9752) Zero Point Vibrational Energy (zpe) 1973.3 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 MP4=FULL/aug-cc-pVDZ
B
0.38593

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/aug-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 1.249
N3 0.000 0.000 -1.249

Atom - Atom Distances (Å)
  C1 N2 N3
C11.24891.2489
N21.24892.4977
N31.24892.4977

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