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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: CCSD(T)/6-311G*

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)/6-311G*
 hartrees
Energy at 0K-835.707750
Energy at 298.15K 
HF Energy-835.256084
Nuclear repulsion energy141.031245
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)/6-311G*
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 3074 2959        
2 A 2594 2497        
3 A 1470 1415        
4 A 1241 1194        
5 A 917 882        
6 A 650 626        
7 A 302 291        
8 A 244 235        
9 B 3130 3013        
10 B 2594 2497        
11 B 1313 1264        
12 B 1033 995        
13 B 779 749        
14 B 720 693        
15 B 257 248        

Unscaled Zero Point Vibrational Energy (zpe) 10159.2 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 9779.2 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)/6-311G*
ABC
0.88721 0.10427 0.09781

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.776
S2 0.000 1.552 -0.181
S3 0.000 -1.552 -0.181
H4 0.881 -0.053 1.422
H5 -0.881 0.053 1.422
H6 1.147 1.302 -0.853
H7 -1.147 -1.302 -0.853

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.82321.82321.09381.09382.37942.3794
S21.82323.10422.43332.36521.35263.1483
S31.82323.10422.36522.43333.14831.3526
H41.09382.43332.36521.76452.66083.2935
H51.09382.36522.43331.76453.29352.6608
H62.37941.35263.14832.66083.29353.4702
H72.37943.14831.35263.29352.66083.4702

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 95.911 C1 S3 H7 95.911
S2 C1 S3 116.704 S2 C1 H4 110.553
S2 C1 H5 105.620 S3 C1 H4 105.620
S3 C1 H5 110.553 H4 C1 H5 107.526
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability