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

using model chemistry: MP3=FULL/3-21G*

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 MP3=FULL/3-21G*
 hartrees
Energy at 0K-1187.396979
Energy at 298.15K-1187.397450
HF Energy-1186.943293
Nuclear repulsion energy182.577523
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/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 B2 762 762 18.52      
2 A1 613 613 0.59      
3 A1 276 276 2.65      

Unscaled Zero Point Vibrational Energy (zpe) 825.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 825.1 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/3-21G*
ABC
0.77660 0.09881 0.08765

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.673
S2 0.000 1.633 -0.336
S3 0.000 -1.633 -0.336

Atom - Atom Distances (Å)
  S1 S2 S3
S11.92001.9200
S21.92003.2669
S31.92003.2669

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 116.584
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (D3H)

Jump to S1C1
Energy calculated at MP3=FULL/3-21G*
 hartrees
Energy at 0K-1187.385058
Energy at 298.15K-1187.385520
HF Energy-1186.950317
Nuclear repulsion energy194.707072
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/3-21G*
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' 581 581 0.00      
2 E' 456 456 0.81      
2 E' 456 456 0.81      

Unscaled Zero Point Vibrational Energy (zpe) 746.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 746.8 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 MP3=FULL/3-21G*
ABC
0.24204 0.24204 0.12102

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/3-21G*

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.205 0.000
S2 1.044 -0.603 0.000
S3 -1.044 -0.603 0.000

Atom - Atom Distances (Å)
  S1 S2 S3
S12.08732.0873
S22.08732.0873
S32.08732.0873

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