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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: QCISD/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-476.167679
Energy at 298.15K-476.171502
HF Energy-475.616161
Nuclear repulsion energy92.829825
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/aug-cc-pVTZ
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' 3160 3041 7.22      
2 A' 3113 2996 14.22      
3 A' 3040 2926 6.31      
4 A' 1506 1449 5.65      
5 A' 1420 1366 17.60      
6 A' 1397 1345 47.87      
7 A' 1180 1136 28.21      
8 A' 1095 1054 6.29      
9 A' 841 810 0.44      
10 A' 393 378 1.83      
11 A" 3099 2983 7.08      
12 A" 1500 1444 7.42      
13 A" 1062 1022 5.03      
14 A" 771 742 12.95      
15 A" 173 167 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 11875.5 cm-1
Scaled (by 0.9624) Zero Point Vibrational Energy (zpe) 11429.0 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/aug-cc-pVTZ
ABC
1.63068 0.19096 0.17651

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.625 0.000
C2 -1.493 0.706 0.000
S3 0.878 -0.738 0.000
H4 0.516 1.585 0.000
H5 -1.943 -0.284 0.000
H6 -1.831 1.263 0.878
H7 -1.831 1.263 -0.878

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.49561.62151.08942.14542.12852.1285
C21.49562.77662.19291.08751.09351.0935
S31.62152.77662.35092.85753.48083.4808
H41.08942.19292.35093.08862.52612.5261
H52.14541.08752.85753.08861.78291.7829
H62.12851.09353.48082.52611.78291.7562
H72.12851.09353.48082.52611.78291.7562

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.330 C1 C2 H6 109.617
C1 C2 H7 109.617 C2 C1 S3 125.886
C2 C1 H4 115.159 S3 C1 H4 118.955
H5 C2 H6 109.665 H5 C2 H7 109.665
H6 C2 H7 106.842
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability