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All results from a given calculation for NCN (Cyanoimidogen)

using model chemistry: MP4/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 MP4/aug-cc-pVTZ
 hartrees
Energy at 0K-147.244555
Energy at 298.15K-147.244403
HF Energy-146.764275
Nuclear repulsion energy47.029230
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/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 1335 1299        
2 Σu 1168 1136        
3 Πu 509 496        
3 Πu 509 495        

Unscaled Zero Point Vibrational Energy (zpe) 1759.9 cm-1
Scaled (by 0.9732) Zero Point Vibrational Energy (zpe) 1712.8 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/aug-cc-pVTZ
B
0.40403

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/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 1.221
N3 0.000 0.000 -1.221

Atom - Atom Distances (Å)
  C1 N2 N3
C11.22061.2206
N21.22062.4412
N31.22062.4412

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/aug-cc-pVTZ
 hartrees
Energy at 0K-147.215320
Energy at 298.15K-147.215068
HF Energy-146.661347
Nuclear repulsion energy46.455620
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/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 1241 1208        
2 Σu 1965 1913        
3 Πu 543 529        
3 Πu 350 340        

Unscaled Zero Point Vibrational Energy (zpe) 2049.8 cm-1
Scaled (by 0.9732) Zero Point Vibrational Energy (zpe) 1994.8 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/aug-cc-pVTZ
B
0.39423

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/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 1.236
N3 0.000 0.000 -1.236

Atom - Atom Distances (Å)
  C1 N2 N3
C11.23561.2356
N21.23562.4713
N31.23562.4713

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