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All results from a given calculation for NCl (nitrogen monochloride)

using model chemistry: MP2/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 3Σ
2 1 yes C*V 1Σ

State 1 (3Σ)

Jump to S2C1
Energy calculated at MP2/STO-3G
 hartrees
Energy at 0K-508.301657
Energy at 298.15K 
HF Energy-508.276771
Nuclear repulsion energy35.416213
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/STO-3G
Rotational Constants (cm-1) from geometry optimized at MP2/STO-3G
B
0.53327

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/STO-3G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.259
Cl2 0.000 0.000 0.519

Atom - Atom Distances (Å)
  N1 Cl2
N11.7781
Cl21.7781

picture of nitrogen monochloride state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (1Σ)

Jump to S1C1
Energy calculated at MP2/STO-3G
 hartrees
Energy at 0K-508.201320
Energy at 298.15K-508.201325
Nuclear repulsion energy35.708579
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/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 937 817 80.41      

Unscaled Zero Point Vibrational Energy (zpe) 468.3 cm-1
Scaled (by 0.8719) Zero Point Vibrational Energy (zpe) 408.3 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 MP2/STO-3G
B
0.54211

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/STO-3G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.249
Cl2 0.000 0.000 0.514

Atom - Atom Distances (Å)
  N1 Cl2
N11.7635
Cl21.7635

picture of nitrogen monochloride state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability