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

using model chemistry: CCSD=FULL/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 CCSD=FULL/daug-cc-pVTZ
 hartrees
Energy at 0K-721.605893
Energy at 298.15K 
HF Energy-721.317066
Nuclear repulsion energy92.031725
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=FULL/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 323 323 0.00      
2 Σu 447 447 120.92      
3 Πu 32i 32i 80.45      
3 Πu 32i 32i 80.45      

Unscaled Zero Point Vibrational Energy (zpe) 353.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 353.0 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 CCSD=FULL/daug-cc-pVTZ
B
0.06517

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/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 2.372
Na3 0.000 0.000 -2.372

Atom - Atom Distances (Å)
  S1 Na2 Na3
S12.37192.3719
Na22.37194.7437
Na32.37194.7437

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=FULL/daug-cc-pVTZ
 hartrees
Energy at 0K-721.605908
Energy at 298.15K 
HF Energy-721.317075
Nuclear repulsion energy92.045453
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=FULL/daug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCSD=FULL/daug-cc-pVTZ
ABC
36.10727 0.06544 0.06532

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.091
Na2 0.000 2.367 -0.066
Na3 0.000 -2.367 -0.066

Atom - Atom Distances (Å)
  S1 Na2 Na3
S12.37232.3723
Na22.37234.7341
Na32.37234.7341

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 172.394
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability