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All results from a given calculation for NCN (Cyanoimidogen)

using model chemistry: QCISD/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 QCISD/cc-pVTZ
 hartrees
Energy at 0K-147.229247
Energy at 298.15K-147.228982
HF Energy-146.762811
Nuclear repulsion energy46.610115
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 QCISD/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 1254 1198 0.00      
2 Σu 1429 1365 317.84      
3 Πu 433 414 16.62      
3 Πu 433 414 16.62      

Unscaled Zero Point Vibrational Energy (zpe) 1774.6 cm-1
Scaled (by 0.9555) Zero Point Vibrational Energy (zpe) 1695.6 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 QCISD/cc-pVTZ
B
0.39668

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/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 1.232
N3 0.000 0.000 -1.232

Atom - Atom Distances (Å)
  C1 N2 N3
C11.23181.2318
N21.23182.4637
N31.23182.4637

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 QCISD/cc-pVTZ
 hartrees
Energy at 0K-147.174127
Energy at 298.15K-147.173840
HF Energy-146.661378
Nuclear repulsion energy46.778592
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 QCISD/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 1278 1221 0.00      
2 Σu 1725 1648 177.39      
3 Πu 562 537 8.52      
3 Πu 308 294 30.53      

Unscaled Zero Point Vibrational Energy (zpe) 1936.4 cm-1
Scaled (by 0.9555) Zero Point Vibrational Energy (zpe) 1850.3 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 QCISD/cc-pVTZ
B
0.39955

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/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 1.227
N3 0.000 0.000 -1.227

Atom - Atom Distances (Å)
  C1 N2 N3
C11.22741.2274
N21.22742.4548
N31.22742.4548

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