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All results from a given calculation for Na2S (Sodium sulfide)

using model chemistry: B2PLYP=FULLultrafine/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no D*H 1ΣG
1 2 yes C2V 1A1

Conformer 1 (D*H)

Jump to S1C2
Energy calculated at B2PLYP=FULLultrafine/Def2TZVPP
 hartrees
Energy at 0K-722.624006
Energy at 298.15K 
HF Energy-722.410895
Nuclear repulsion energy91.151494
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 B2PLYP=FULLultrafine/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Σg 284 284 0.00 284.59 0.11 0.20
2 Σu 433 433 112.32 0.00 0.00 0.00
3 Πu 43i 43i 58.93 0.00 0.00 0.00
3 Πu 43i 43i 58.93 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 315.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 315.5 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 B2PLYP=FULLultrafine/Def2TZVPP
B
0.06393

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/Def2TZVPP

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.000
Na2 0.000 0.000 2.395
Na3 0.000 0.000 -2.395

Atom - Atom Distances (Å)
  S1 Na2 Na3
S12.39482.3948
Na22.39484.7895
Na32.39484.7895

picture of Sodium sulfide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Na2 S1 Na3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at B2PLYP=FULLultrafine/Def2TZVPP
 hartrees
Energy at 0K-722.626190
Energy at 298.15K 
HF Energy-722.411648
Nuclear repulsion energy92.200489
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 B2PLYP=FULLultrafine/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 313 313 12.39 387.80 0.08 0.15
2 A1 59 59 29.61 12.65 0.74 0.85
3 B2 389 389 79.84 18.09 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 380.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 380.3 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 B2PLYP=FULLultrafine/Def2TZVPP
ABC
0.58285 0.08442 0.07374

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.717
Na2 0.000 2.084 -0.521
Na3 0.000 -2.084 -0.521

Atom - Atom Distances (Å)
  S1 Na2 Na3
S12.42422.4242
Na22.42424.1680
Na32.42424.1680

picture of Sodium sulfide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Na2 S1 Na3 118.558
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability