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All results from a given calculation for NCN (Cyanoimidogen)

using model chemistry: CCSD/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-147.234209
Energy at 298.15K-147.233948
HF Energy-146.764250
Nuclear repulsion energy46.683717
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/aug-cc-pVTZ
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 1262 1206 0.00      
2 Σu 1400 1338 355.09      
3 Πu 436 416 16.55      
3 Πu 436 416 16.55      

Unscaled Zero Point Vibrational Energy (zpe) 1766.4 cm-1
Scaled (by 0.9558) Zero Point Vibrational Energy (zpe) 1688.4 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/aug-cc-pVTZ
B
0.39794

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

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 1.230
N3 0.000 0.000 -1.230

Atom - Atom Distances (Å)
  C1 N2 N3
C11.22991.2299
N21.22992.4598
N31.22992.4598

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/aug-cc-pVTZ
 hartrees
Energy at 0K-147.179428
Energy at 298.15K-147.179163
HF Energy-146.663516
Nuclear repulsion energy46.879740
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/aug-cc-pVTZ
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 1296 1239 0.00      
2 Σu 1736 1660 168.27      
3 Πu 568 543 8.37      
3 Πu 321 307 29.77      

Unscaled Zero Point Vibrational Energy (zpe) 1961.0 cm-1
Scaled (by 0.9558) Zero Point Vibrational Energy (zpe) 1874.3 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 CCSD/aug-cc-pVTZ
B
0.40128

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

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 1.225
N3 0.000 0.000 -1.225

Atom - Atom Distances (Å)
  C1 N2 N3
C11.22471.2247
N21.22472.4495
N31.22472.4495

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