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

using model chemistry: B2PLYP=FULLultrafine/6-31G

19 10 17 12 22

States and conformations

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

Conformer 1 (D*H)

Jump to S1C2
Energy calculated at B2PLYP=FULLultrafine/6-31G
 hartrees
Energy at 0K-722.376797
Energy at 298.15K 
HF Energy-722.352490
Nuclear repulsion energy90.009699
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/6-31G
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 275 275 0.00 521.54 0.09 0.17
2 Σu 426 426 108.84 0.00 0.00 0.00
3 Πu 32i 32i 59.20 0.00 0.00 0.00
3 Πu 32i 32i 59.20 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 318.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 318.6 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 B2PLYP=FULLultrafine/6-31G
B
0.06234

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31G

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 2.425
Na3 0.000 0.000 -2.425

Atom - Atom Distances (Å)
  S1 Na2 Na3
S12.42512.4251
Na22.42514.8503
Na32.42514.8503

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/6-31G
 hartrees
Energy at 0K-722.377672
Energy at 298.15K 
HF Energy-722.351569
Nuclear repulsion energy90.278907
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/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 288 288 3.63 623.83 0.09 0.17
2 A1 43 43 35.82 17.80 0.72 0.84
3 B2 387 387 80.34 20.75 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 358.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 358.7 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 B2PLYP=FULLultrafine/6-31G
ABC
0.72987 0.07593 0.06878

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.641
Na2 0.000 2.197 -0.466
Na3 0.000 -2.197 -0.466

Atom - Atom Distances (Å)
  S1 Na2 Na3
S12.46032.4603
Na22.46034.3948
Na32.46034.3948

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 126.537
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability