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

using model chemistry: CISD/daug-cc-pVDZ

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 CISD/daug-cc-pVDZ
 hartrees
Energy at 0K-721.459947
Energy at 298.15K 
HF Energy-721.296649
Nuclear repulsion energy88.875111
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 CISD/daug-cc-pVDZ
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 271 271 0.00      
2 Σu 413 413 133.81      
3 Πu 49i 49i 82.62      
3 Πu 49i 49i 82.62      

Unscaled Zero Point Vibrational Energy (zpe) 292.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 292.9 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 CISD/daug-cc-pVDZ
B
0.06078

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

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 2.456
Na3 0.000 0.000 -2.456

Atom - Atom Distances (Å)
  S1 Na2 Na3
S12.45612.4561
Na22.45614.9122
Na32.45614.9122

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 CISD/daug-cc-pVDZ
 hartrees
Energy at 0K-721.461127
Energy at 298.15K 
HF Energy-721.297008
Nuclear repulsion energy89.740685
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 CISD/daug-cc-pVDZ
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 294 294 18.78      
2 A1 45 45 50.43      
3 B2 392 392 106.98      

Unscaled Zero Point Vibrational Energy (zpe) 365.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 365.4 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 CISD/daug-cc-pVDZ
ABC
0.84630 0.07282 0.06705

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.595
Na2 0.000 2.244 -0.433
Na3 0.000 -2.244 -0.433

Atom - Atom Distances (Å)
  S1 Na2 Na3
S12.46802.4680
Na22.46804.4878
Na32.46804.4878

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 130.783
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability