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All results from a given calculation for NCN (Cyanoimidogen)

using model chemistry: MP2/cc-pVQZ

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 MP2/cc-pVQZ
 hartrees
Energy at 0K-147.222918
Energy at 298.15K-147.222751
HF Energy-146.771720
Nuclear repulsion energy47.479653
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 MP2/cc-pVQZ
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 1375 1304 0.00      
2 Σu 910 863 792.83      
3 Πu 528 500 25.77      
3 Πu 528 500 25.77      

Unscaled Zero Point Vibrational Energy (zpe) 1669.8 cm-1
Scaled (by 0.9484) Zero Point Vibrational Energy (zpe) 1583.7 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 MP2/cc-pVQZ
B
0.41162

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVQZ

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 1.209
N3 0.000 0.000 -1.209

Atom - Atom Distances (Å)
  C1 N2 N3
C11.20931.2093
N21.20932.4185
N31.20932.4185

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 MP2/cc-pVQZ
 hartrees
Energy at 0K-147.196817
Energy at 298.15K-147.196607
HF Energy-146.671720
Nuclear repulsion energy46.968843
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 MP2/cc-pVQZ
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 1310 1242 0.00      
2 Σu 1908 1810 52.42      
3 Πu 565 536 7.03      
3 Πu 373 354 47.98      

Unscaled Zero Point Vibrational Energy (zpe) 2078.1 cm-1
Scaled (by 0.9484) Zero Point Vibrational Energy (zpe) 1970.8 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 MP2/cc-pVQZ
B
0.40281

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVQZ

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 1.222
N3 0.000 0.000 -1.222

Atom - Atom Distances (Å)
  C1 N2 N3
C11.22241.2224
N21.22242.4448
N31.22242.4448

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