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

using model chemistry: B2PLYP=FULLultrafine/STO-3G

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/STO-3G
 hartrees
Energy at 0K-713.835246
Energy at 298.15K 
HF Energy-713.800540
Nuclear repulsion energy101.948064
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/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 Σg 480 480 0.00 22.96 0.33 0.50
2 Σu 713 713 144.97 0.00 0.00 0.00
3 Πu 119i 119i 71.79 0.00 0.00 0.00
3 Πu 119i 119i 71.79 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 477.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 477.8 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 B2PLYP=FULLultrafine/STO-3G
B
0.07997

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/STO-3G

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 2.141
Na3 0.000 0.000 -2.141

Atom - Atom Distances (Å)
  S1 Na2 Na3
S12.14112.1411
Na22.14114.2823
Na32.14114.2823

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/STO-3G
 hartrees
Energy at 0K-713.855447
Energy at 298.15K 
HF Energy-713.816621
Nuclear repulsion energy106.935034
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/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 A1 617 617 35.92 19.65 0.11 0.20
2 A1 140 140 4.24 7.39 0.73 0.84
3 B2 584 584 73.53 5.28 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 670.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 670.5 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/STO-3G
ABC
0.34228 0.16905 0.11316

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.936
Na2 0.000 1.473 -0.680
Na3 0.000 -1.473 -0.680

Atom - Atom Distances (Å)
  S1 Na2 Na3
S12.18642.1864
Na22.18642.9453
Na32.18642.9453

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 84.684
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability