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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: CISD/cc-pV(T+d)Z

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at CISD/cc-pV(T+d)Z
 hartrees
Energy at 0K-476.088690
Energy at 298.15K-476.092574
HF Energy-475.617393
Nuclear repulsion energy93.566120
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 CISD/cc-pV(T+d)Z
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' 3240 3240 8.19      
2 A' 3195 3195 14.79      
3 A' 3116 3116 5.68      
4 A' 1542 1542 6.02      
5 A' 1458 1458 39.75      
6 A' 1441 1441 31.81      
7 A' 1222 1222 32.83      
8 A' 1128 1128 5.10      
9 A' 872 872 0.63      
10 A' 407 407 2.23      
11 A" 3175 3175 8.52      
12 A" 1534 1534 8.42      
13 A" 1100 1100 5.23      
14 A" 805 805 12.50      
15 A" 179 179 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 12206.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12206.2 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 CISD/cc-pV(T+d)Z
ABC
1.65963 0.19375 0.17916

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/cc-pV(T+d)Z

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.615 0.000
C2 -1.488 0.694 0.000
S3 0.875 -0.727 0.000
H4 0.506 1.573 0.000
H5 -1.934 -0.291 0.000
H6 -1.825 1.248 0.872
H7 -1.825 1.248 -0.872

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.49021.60251.08282.13602.11932.1193
C21.49022.75762.17901.08071.08701.0870
S31.60252.75762.32912.84353.45723.4572
H41.08282.17902.32913.07022.50992.5099
H52.13601.08072.84353.07021.77181.7718
H62.11931.08703.45722.50991.77181.7450
H72.11931.08703.45722.50991.77181.7450

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.374 C1 C2 H6 109.651
C1 C2 H7 109.651 C2 C1 S3 126.130
C2 C1 H4 114.833 S3 C1 H4 119.037
H5 C2 H6 109.641 H5 C2 H7 109.641
H6 C2 H7 106.773
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability