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 S3 (Sulfur trimer)

using model chemistry: MP3/6-31+G**

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 MP3/6-31+G**
 hartrees
Energy at 0K-1192.882763
Energy at 298.15K-1192.883220
HF Energy-1192.471018
Nuclear repulsion energy181.020019
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 MP3/6-31+G**
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 757 704 13.00      
2 A1 602 560 0.44      
3 A1 270 251 2.58      

Unscaled Zero Point Vibrational Energy (zpe) 814.1 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 757.5 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 MP3/6-31+G**
ABC
0.75739 0.09734 0.08625

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.599
S2 0.000 1.647 -0.299
S3 0.000 -1.647 -0.299

Atom - Atom Distances (Å)
  S1 S2 S3
S11.87561.8756
S21.87563.2936
S31.87563.2936

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 122.803
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (D3H)

Jump to S1C1
Energy calculated at MP3/6-31+G**
 hartrees
Energy at 0K-1192.880772
Energy at 298.15K-1192.881255
HF Energy-1192.485967
Nuclear repulsion energy193.620638
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 MP3/6-31+G**
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' 601 559 0.00      
2 E' 461 429 1.22      
2 E' 461 429 1.22      

Unscaled Zero Point Vibrational Energy (zpe) 761.1 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 708.2 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 MP3/6-31+G**
ABC
0.23935 0.23935 0.11968

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31+G**

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.212 0.000
S2 1.049 -0.606 0.000
S3 -1.049 -0.606 0.000

Atom - Atom Distances (Å)
  S1 S2 S3
S12.09902.0990
S22.09902.0990
S32.09902.0990

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