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

using model chemistry: CCSD(T)=FULL/Def2TZVPP

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)=FULL/Def2TZVPP
 hartrees
Energy at 0K-722.021396
Energy at 298.15K 
HF Energy-721.298592
Nuclear repulsion energy91.218388
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)=FULL/Def2TZVPP
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 286 286        
2 Σu 433 433        
3 Πu 39i 39i        
3 Πu 39i 39i        

Unscaled Zero Point Vibrational Energy (zpe) 320.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 320.5 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)=FULL/Def2TZVPP
B
0.06403

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/Def2TZVPP

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 2.393
Na3 0.000 0.000 -2.393

Atom - Atom Distances (Å)
  S1 Na2 Na3
S12.39292.3929
Na22.39294.7857
Na32.39294.7857

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)=FULL/Def2TZVPP
 hartrees
Energy at 0K-722.023449
Energy at 298.15K 
HF Energy-721.297527
Nuclear repulsion energy92.375761
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)=FULL/Def2TZVPP
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 316 316        
2 A1 60 60        
3 B2 389 389        

Unscaled Zero Point Vibrational Energy (zpe) 382.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 382.1 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)=FULL/Def2TZVPP
ABC
0.55979 0.08581 0.07441

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.732
Na2 0.000 2.067 -0.532
Na3 0.000 -2.067 -0.532

Atom - Atom Distances (Å)
  S1 Na2 Na3
S12.42272.4227
Na22.42274.1340
Na32.42274.1340

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 117.121
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability