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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: CCSD(T)/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at CCSD(T)/cc-pVDZ
 hartrees
Energy at 0K-835.727012
Energy at 298.15K 
HF Energy-835.251645
Nuclear repulsion energy140.372066
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 CCSD(T)/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 A 3086 3020        
2 A 2716 2658        
3 A 1444 1414        
4 A 1196 1171        
5 A 901 882        
6 A 636 623        
7 A 299 293        
8 A 228 223        
9 B 3150 3083        
10 B 2716 2658        
11 B 1254 1228        
12 B 1004 983        
13 B 770 753        
14 B 710 695        
15 B 259 253        

Unscaled Zero Point Vibrational Energy (zpe) 10184.2 cm-1
Scaled (by 0.9788) Zero Point Vibrational Energy (zpe) 9968.2 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 CCSD(T)/cc-pVDZ
ABC
0.86977 0.10371 0.09698

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.788
S2 0.000 1.558 -0.182
S3 0.000 -1.558 -0.182
H4 0.891 -0.056 1.438
H5 -0.891 0.056 1.438
H6 1.114 1.267 -0.895
H7 -1.114 -1.267 -0.895

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.83511.83511.10421.10422.38272.3827
S21.83513.11592.45402.38131.35403.1191
S31.83513.11592.38132.45403.11911.3540
H41.10422.45402.38131.78602.69073.3052
H51.10422.38132.45401.78603.30522.6907
H62.38271.35403.11912.69073.30523.3736
H72.38273.11911.35403.30522.69073.3736

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 95.500 C1 S3 H7 95.500
S2 C1 S3 116.194 S2 C1 H4 110.743
S2 C1 H5 105.513 S3 C1 H4 105.513
S3 C1 H5 110.743 H4 C1 H5 107.951
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability