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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: QCISD(T)=FULL/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at QCISD(T)=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-836.015765
Energy at 298.15K 
HF Energy-835.300946
Nuclear repulsion energy142.237361
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(T)=FULL/aug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3114 3114        
2 A 2704 2704        
3 A 1471 1471        
4 A 1213 1213        
5 A 917 917        
6 A 651 651        
7 A 296 296        
8 A 218 218        
9 B 3137 3137        
10 B 2703 2703        
11 B 1265 1265        
12 B 1012 1012        
13 B 785 785        
14 B 718 718        
15 B 233 233        

Unscaled Zero Point Vibrational Energy (zpe) 10217.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10217.5 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 QCISD(T)=FULL/aug-cc-pVTZ
ABC
0.88200 0.10696 0.09978

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/aug-cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.787
S2 0.000 1.535 -0.180
S3 0.000 -1.535 -0.180
H4 0.878 -0.050 1.423
H5 -0.878 0.050 1.423
H6 1.084 1.233 -0.906
H7 -1.084 -1.233 -0.906

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81421.81421.08521.08522.35842.3584
S21.81423.06942.41892.35481.33933.0595
S31.81423.06942.35482.41893.05951.3393
H41.08522.41892.35481.75962.66623.2669
H51.08522.35482.41891.75963.26692.6662
H62.35841.33933.05952.66623.26693.2834
H72.35843.05951.33933.26692.66623.2834

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 95.635 C1 S3 H7 95.635
S2 C1 S3 115.546 S2 C1 H4 110.552
S2 C1 H5 105.860 S3 C1 H4 105.860
S3 C1 H5 110.552 H4 C1 H5 108.339
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability