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

using model chemistry: MP4/daug-cc-pVTZ

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 MP4/daug-cc-pVTZ
 hartrees
Energy at 0K-721.547365
Energy at 298.15K 
HF Energy-721.317912
Nuclear repulsion energy89.077090
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 MP4/daug-cc-pVTZ
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 270 270        
2 Σu 413 413        
3 Πu 46i 46i        
3 Πu 46i 46i        

Unscaled Zero Point Vibrational Energy (zpe) 295.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 295.7 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 MP4/daug-cc-pVTZ
B
0.06106

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/daug-cc-pVTZ

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 2.450
Na3 0.000 0.000 -2.450

Atom - Atom Distances (Å)
  S1 Na2 Na3
S12.45042.4504
Na22.45044.9008
Na32.45044.9008

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 MP4/daug-cc-pVTZ
 hartrees
Energy at 0K-721.548422
Energy at 298.15K 
HF Energy-721.316942
Nuclear repulsion energy89.925996
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 MP4/daug-cc-pVTZ
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 292 292        
2 A1 44 44        
3 B2 382 382        

Unscaled Zero Point Vibrational Energy (zpe) 359.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 359.0 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 MP4/daug-cc-pVTZ
ABC
0.70160 0.07583 0.06844

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/daug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.653
Na2 0.000 2.199 -0.475
Na3 0.000 -2.199 -0.475

Atom - Atom Distances (Å)
  S1 Na2 Na3
S12.47162.4716
Na22.47164.3976
Na32.47164.3976

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 125.652
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability