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All results from a given calculation for S3 (Sulfur trimer)

using model chemistry: MP4/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
1 2 no D3H 1A1'

Conformer 1 (C2V)

Jump to S1C2
Energy calculated at MP4/6-31G*
 hartrees
Energy at 0K-1192.914095
Energy at 298.15K-1192.914472
HF Energy-1192.468120
Nuclear repulsion energy178.392738
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 MP4/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 561 536        
2 A1 254 242        
3 B2 692 661        

Unscaled Zero Point Vibrational Energy (zpe) 753.4 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 719.4 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 MP4/6-31G*
ABC
0.77018 0.09338 0.08328

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.676
S2 0.000 1.680 -0.338
S3 0.000 -1.680 -0.338

Atom - Atom Distances (Å)
  S1 S2 S3
S11.96221.9622
S21.96223.3605
S31.96223.3605

picture of Sulfur trimer state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S2 S1 S3 117.811
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (D3H)

Jump to S1C1
Energy calculated at MP4/6-31G*
 hartrees
Energy at 0K-1192.893940
Energy at 298.15K-1192.894388
HF Energy-1192.482919
Nuclear repulsion energy193.004673
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 MP4/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1' 588 561        
2 E' 449 429        
2 E' 449 429        

Unscaled Zero Point Vibrational Energy (zpe) 743.0 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 709.4 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 MP4/6-31G*
ABC
0.23787 0.23787 0.11893

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.216 0.000
S2 1.053 -0.608 0.000
S3 -1.053 -0.608 0.000

Atom - Atom Distances (Å)
  S1 S2 S3
S12.10552.1055
S22.10552.1055
S32.10552.1055

picture of Sulfur trimer state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S2 S1 S3 60.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability