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

using model chemistry: QCISD/daug-cc-pVDZ

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-pVDZ
 hartrees
Energy at 0K-721.470972
Energy at 298.15K 
HF Energy-721.296597
Nuclear repulsion energy88.652495
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-pVDZ
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 267 267 0.00      
2 Σu 408 408 125.23      
3 Πu 53i 53i 76.16      
3 Πu 53i 53i 76.16      

Unscaled Zero Point Vibrational Energy (zpe) 284.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 284.7 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-pVDZ
B
0.06047

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

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 2.462
Na3 0.000 0.000 -2.462

Atom - Atom Distances (Å)
  S1 Na2 Na3
S12.46232.4623
Na22.46234.9245
Na32.46234.9245

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-pVDZ
 hartrees
Energy at 0K-721.472677
Energy at 298.15K 
HF Energy-721.296675
Nuclear repulsion energy89.700247
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-pVDZ
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 16.12      
2 A1 46 46 39.65      
3 B2 379 379 94.05      

Unscaled Zero Point Vibrational Energy (zpe) 358.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 358.6 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-pVDZ
ABC
0.66970 0.07614 0.06837

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.669
Na2 0.000 2.194 -0.486
Na3 0.000 -2.194 -0.486

Atom - Atom Distances (Å)
  S1 Na2 Na3
S12.47992.4799
Na22.47994.3888
Na32.47994.3888

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 124.467
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability