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

using model chemistry: QCISD/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 QCISD/daug-cc-pVTZ
 hartrees
Energy at 0K-721.534164
Energy at 298.15K 
HF Energy-721.317974
Nuclear repulsion energy89.378418
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 QCISD/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 275 275 0.00      
2 Σu 420 420 126.00      
3 Πu 41i 41i 78.82      
3 Πu 41i 41i 78.82      

Unscaled Zero Point Vibrational Energy (zpe) 306.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 306.7 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 QCISD/daug-cc-pVTZ
B
0.06147

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/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 2.442
Na3 0.000 0.000 -2.442

Atom - Atom Distances (Å)
  S1 Na2 Na3
S12.44232.4423
Na22.44234.8845
Na32.44234.8845

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 QCISD/daug-cc-pVTZ
 hartrees
Energy at 0K-721.534745
Energy at 298.15K 
HF Energy-721.317512
Nuclear repulsion energy89.970329
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 QCISD/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 14.17      
2 A1 32 32 52.04      
3 B2 399 399 106.14      

Unscaled Zero Point Vibrational Energy (zpe) 361.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 361.7 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 QCISD/daug-cc-pVTZ
ABC
0.98779 0.07149 0.06666

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.551
Na2 0.000 2.265 -0.401
Na3 0.000 -2.265 -0.401

Atom - Atom Distances (Å)
  S1 Na2 Na3
S12.45632.4563
Na22.45634.5293
Na32.45634.5293

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 134.429
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability