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: CID/6-311+G(3df,2p)

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 CID/6-311+G(3df,2p)
 hartrees
Energy at 0K-721.488032
Energy at 298.15K 
HF Energy-721.291089
Nuclear repulsion energy89.886300
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 CID/6-311+G(3df,2p)
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 283 262 0.00      
2 Σu 432 399 135.08      
3 Πu 14i 13i 81.80      
3 Πu 14i 13i 81.80      

Unscaled Zero Point Vibrational Energy (zpe) 343.1 cm-1
Scaled (by 0.924) Zero Point Vibrational Energy (zpe) 317.0 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 CID/6-311+G(3df,2p)
B
0.06217

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-311+G(3df,2p)

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 2.428
Na3 0.000 0.000 -2.428

Atom - Atom Distances (Å)
  S1 Na2 Na3
S12.42852.4285
Na22.42854.8569
Na32.42854.8569

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 CID/6-311+G(3df,2p)
 hartrees
Energy at 0K-721.488066
Energy at 298.15K 
HF Energy-721.291011
Nuclear repulsion energy90.057200
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 CID/6-311+G(3df,2p)
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 289 267 5.94      
2 A1 19 18 74.46      
3 B2 426 393 128.72      

Unscaled Zero Point Vibrational Energy (zpe) 366.7 cm-1
Scaled (by 0.924) Zero Point Vibrational Energy (zpe) 338.8 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 CID/6-311+G(3df,2p)
ABC
3.42548 0.06485 0.06365

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.296
Na2 0.000 2.378 -0.215
Na3 0.000 -2.378 -0.215

Atom - Atom Distances (Å)
  S1 Na2 Na3
S12.43202.4320
Na22.43204.7554
Na32.43204.7554

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 155.749
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability