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

using model chemistry: CCSD(T)/aug-cc-pCVTZ

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)/aug-cc-pCVTZ
 hartrees
Energy at 0K-721.550027
Energy at 298.15K 
HF Energy-721.319737
Nuclear repulsion energy89.400153
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)/aug-cc-pCVTZ
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 274 274        
2 Σu 419 419        
3 Πu 29i 29i        
3 Πu 29i 29i        

Unscaled Zero Point Vibrational Energy (zpe) 317.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 317.4 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)/aug-cc-pCVTZ
B
0.06150

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/aug-cc-pCVTZ

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 2.442
Na3 0.000 0.000 -2.442

Atom - Atom Distances (Å)
  S1 Na2 Na3
S12.44152.4415
Na22.44154.8831
Na32.44154.8831

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)/aug-cc-pCVTZ
 hartrees
Energy at 0K-721.550739
Energy at 298.15K 
HF Energy-721.319030
Nuclear repulsion energy90.162471
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)/aug-cc-pCVTZ
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 295 295        
2 A1 43 43        
3 B2 392 392        

Unscaled Zero Point Vibrational Energy (zpe) 364.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 364.7 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 CCSD(T)/aug-cc-pCVTZ
ABC
0.80138 0.07434 0.06803

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/aug-cc-pCVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.611
Na2 0.000 2.221 -0.445
Na3 0.000 -2.221 -0.445

Atom - Atom Distances (Å)
  S1 Na2 Na3
S12.45912.4591
Na22.45914.4415
Na32.45914.4415

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 129.131
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability