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

using model chemistry: CCSD(T)/6-311G*

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 CCSD(T)/6-311G*
 hartrees
Energy at 0K-721.446742
Energy at 298.15K 
HF Energy-721.286264
Nuclear repulsion energy90.037677
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 CCSD(T)/6-311G*
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 285 274        
2 Σu 430 414        
3 Πu 57i 55i        
3 Πu 57i 55i        

Unscaled Zero Point Vibrational Energy (zpe) 300.5 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 289.2 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 CCSD(T)/6-311G*
B
0.06238

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/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 2.424
Na3 0.000 0.000 -2.424

Atom - Atom Distances (Å)
  S1 Na2 Na3
S12.42432.4243
Na22.42434.8485
Na32.42434.8485

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 CCSD(T)/6-311G*
 hartrees
Energy at 0K-721.450129
Energy at 298.15K 
HF Energy-721.283200
Nuclear repulsion energy91.617822
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 CCSD(T)/6-311G*
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 319 307        
2 A1 65 62        
3 B2 387 373        

Unscaled Zero Point Vibrational Energy (zpe) 385.2 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 370.8 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 CCSD(T)/6-311G*
ABC
0.51457 0.08617 0.07381

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.763
Na2 0.000 2.063 -0.555
Na3 0.000 -2.063 -0.555

Atom - Atom Distances (Å)
  S1 Na2 Na3
S12.44782.4478
Na22.44784.1254
Na32.44784.1254

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 114.845
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability