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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: CCSD/TZVP

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/TZVP
 hartrees
Energy at 0K-835.742432
Energy at 298.15K 
HF Energy-835.270243
Nuclear repulsion energy141.044236
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/TZVP
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 3130 2987 12.51      
2 A 2737 2613 1.91      
3 A 1466 1399 0.31      
4 A 1225 1169 0.97      
5 A 923 881 4.40      
6 A 654 624 3.28      
7 A 301 287 13.17      
8 A 228 218 6.17      
9 B 3192 3046 2.31      
10 B 2737 2612 6.57      
11 B 1316 1256 28.05      
12 B 1032 985 24.04      
13 B 788 752 19.83      
14 B 727 694 0.64      
15 B 257 245 38.93      

Unscaled Zero Point Vibrational Energy (zpe) 10356.0 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 9883.7 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/TZVP
ABC
0.88886 0.10411 0.09753

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/TZVP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.780
S2 0.000 1.554 -0.180
S3 0.000 -1.554 -0.180
H4 0.879 -0.053 1.417
H5 -0.879 0.053 1.417
H6 1.118 1.290 -0.875
H7 -1.118 -1.290 -0.875

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.82671.82671.08721.08722.37682.3768
S21.82673.10872.43072.36161.34213.1339
S31.82673.10872.36162.43073.13391.3421
H41.08722.43072.36161.76102.66723.2815
H51.08722.36162.43071.76103.28152.6672
H62.37681.34213.13392.66723.28153.4134
H72.37683.13391.34213.28152.66723.4134

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 95.983 C1 S3 H7 95.983
S2 C1 S3 116.618 S2 C1 H4 110.477
S2 C1 H5 105.457 S3 C1 H4 105.457
S3 C1 H5 110.477 H4 C1 H5 108.166
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability