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

using model chemistry: B2PLYP=FULLultrafine/6-311G*

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/6-311G*
 hartrees
Energy at 0K-722.562714
Energy at 298.15K 
HF Energy-722.398149
Nuclear repulsion energy90.436345
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/6-311G*
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 282 282 0.00 271.79 0.12 0.21
2 Σu 429 429 109.12 0.00 0.00 0.00
3 Πu 47i 47i 71.06 0.00 0.00 0.00
3 Πu 47i 47i 71.06 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 308.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 308.1 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/6-311G*
B
0.06293

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-311G*

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 2.414
Na3 0.000 0.000 -2.414

Atom - Atom Distances (Å)
  S1 Na2 Na3
S12.41372.4137
Na22.41374.8274
Na32.41374.8274

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/6-311G*
 hartrees
Energy at 0K-722.564917
Energy at 298.15K 
HF Energy-722.397973
Nuclear repulsion energy91.603190
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/6-311G*
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 310 310 14.21 416.59 0.08 0.15
2 A1 57 57 30.28 17.41 0.63 0.77
3 B2 390 390 79.66 18.97 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 378.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 378.5 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/6-311G*
ABC
0.59263 0.08266 0.07254

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.711
Na2 0.000 2.106 -0.517
Na3 0.000 -2.106 -0.517

Atom - Atom Distances (Å)
  S1 Na2 Na3
S12.43802.4380
Na22.43804.2122
Na32.43804.2122

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 119.503
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability