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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: CCSD/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at CCSD/6-31G(2df,p)
 hartrees
Energy at 0K-476.084668
Energy at 298.15K-476.088494
HF Energy-475.568553
Nuclear repulsion energy92.803157
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/6-31G(2df,p)
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' 3203 3029 4.99      
2 A' 3150 2978 11.39      
3 A' 3077 2910 4.01      
4 A' 1513 1431 3.86      
5 A' 1428 1350 20.54      
6 A' 1407 1331 44.31      
7 A' 1191 1126 24.69      
8 A' 1100 1040 4.76      
9 A' 847 801 0.74      
10 A' 397 375 1.94      
11 A" 3141 2970 5.85      
12 A" 1506 1424 7.62      
13 A" 1067 1009 3.02      
14 A" 778 735 12.51      
15 A" 174 165 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 11990.0 cm-1
Scaled (by 0.9455) Zero Point Vibrational Energy (zpe) 11336.5 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 CCSD/6-31G(2df,p)
ABC
1.63009 0.19078 0.17635

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.623 0.000
C2 -1.497 0.701 0.000
S3 0.881 -0.735 0.000
H4 0.511 1.587 0.000
H5 -1.947 -0.290 0.000
H6 -1.838 1.259 0.879
H7 -1.838 1.259 -0.879

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.49941.61851.09122.15082.13402.1340
C21.49942.77832.19501.08901.09491.0949
S31.61852.77832.35112.86303.48413.4841
H41.09122.19502.35113.09332.52922.5292
H52.15081.08902.86303.09331.78451.7845
H62.13401.09493.48412.52921.78451.7573
H72.13401.09493.48412.52921.78451.7573

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.408 C1 C2 H6 109.702
C1 C2 H7 109.702 C2 C1 S3 125.975
C2 C1 H4 114.931 S3 C1 H4 119.094
H5 C2 H6 109.591 H5 C2 H7 109.591
H6 C2 H7 106.733
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability