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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: QCISD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at QCISD/cc-pVDZ
 hartrees
Energy at 0K-476.024795
Energy at 298.15K-476.028596
HF Energy-475.575822
Nuclear repulsion energy91.985745
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 QCISD/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3179 3050 8.78      
2 A' 3111 2985 23.75      
3 A' 3050 2926 10.07      
4 A' 1481 1421 4.45      
5 A' 1407 1350 36.35      
6 A' 1384 1328 24.71      
7 A' 1179 1131 21.05      
8 A' 1084 1040 3.85      
9 A' 839 805 0.58      
10 A' 394 378 1.75      
11 A" 3121 2994 10.91      
12 A" 1475 1415 7.71      
13 A" 1045 1003 3.44      
14 A" 764 733 11.56      
15 A" 167 161 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 11840.7 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 11360.0 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 QCISD/cc-pVDZ
ABC
1.59765 0.18776 0.17353

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.630 0.000
C2 -1.506 0.711 0.000
S3 0.886 -0.744 0.000
H4 0.515 1.608 0.000
H5 -1.961 -0.292 0.000
H6 -1.849 1.274 0.889
H7 -1.849 1.274 -0.889

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.50771.63471.10552.16692.15032.1503
C21.50772.79932.21071.10161.10711.1071
S31.63472.79932.38122.88263.51323.5132
H41.10552.21072.38123.12102.54742.5474
H52.16691.10162.88263.12101.80451.8045
H62.15031.10713.51322.54741.80451.7784
H72.15031.10713.51322.54741.80451.7784

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.340 C1 C2 H6 109.692
C1 C2 H7 109.692 C2 C1 S3 125.902
C2 C1 H4 114.676 S3 C1 H4 119.422
H5 C2 H6 109.574 H5 C2 H7 109.574
H6 C2 H7 106.864
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability