return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: MP3=FULL/6-311G*

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 MP3=FULL/6-311G*
 hartrees
Energy at 0K-721.817177
Energy at 298.15K 
HF Energy-721.286165
Nuclear repulsion energy90.536043
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 MP3=FULL/6-311G*
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 292 292 0.00      
2 Σu 440 440 132.57      
3 Πu 51i 51i 85.11      
3 Πu 51i 51i 85.11      

Unscaled Zero Point Vibrational Energy (zpe) 315.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 315.5 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 MP3=FULL/6-311G*
B
0.06307

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-311G*

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 2.411
Na3 0.000 0.000 -2.411

Atom - Atom Distances (Å)
  S1 Na2 Na3
S12.41102.4110
Na22.41104.8221
Na32.41104.8221

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 MP3=FULL/6-311G*
 hartrees
Energy at 0K-721.819408
Energy at 298.15K 
HF Energy-721.283894
Nuclear repulsion energy91.929013
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 MP3=FULL/6-311G*
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 326 326 20.18      
2 A1 58 58 33.85      
3 B2 408 408 98.32      

Unscaled Zero Point Vibrational Energy (zpe) 396.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 396.4 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 MP3=FULL/6-311G*
ABC
0.61953 0.08243 0.07275

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.695
Na2 0.000 2.109 -0.506
Na3 0.000 -2.109 -0.506

Atom - Atom Distances (Å)
  S1 Na2 Na3
S12.42702.4270
Na22.42704.2179
Na32.42704.2179

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 120.671
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability