return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: CCSD=FULL/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 CCSD=FULL/cc-pVTZ
 hartrees
Energy at 0K-476.222806
Energy at 298.15K-476.226671
HF Energy-475.615146
Nuclear repulsion energy93.258332
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=FULL/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' 3175 3010 10.14      
2 A' 3146 2982 12.51      
3 A' 3066 2907 6.14      
4 A' 1515 1436 5.32      
5 A' 1429 1355 35.68      
6 A' 1414 1340 26.75      
7 A' 1198 1136 25.98      
8 A' 1106 1048 4.15      
9 A' 853 809 0.92      
10 A' 399 378 1.90      
11 A" 3110 2949 8.04      
12 A" 1509 1431 7.97      
13 A" 1075 1019 5.03      
14 A" 793 752 12.61      
15 A" 185 176 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 11986.1 cm-1
Scaled (by 0.9481) Zero Point Vibrational Energy (zpe) 11364.0 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 CCSD=FULL/cc-pVTZ
ABC
1.64669 0.19270 0.17814

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.622 0.000
C2 -1.486 0.703 0.000
S3 0.874 -0.735 0.000
H4 0.510 1.577 0.000
H5 -1.932 -0.284 0.000
H6 -1.824 1.257 0.875
H7 -1.824 1.257 -0.875

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.48861.61441.08232.13382.12032.1203
C21.48862.76392.17981.08281.08911.0891
S31.61442.76392.33992.84173.46603.4660
H41.08232.17982.33993.07032.51372.5137
H52.13381.08282.84173.07031.77531.7753
H62.12031.08913.46602.51371.77531.7491
H72.12031.08913.46602.51371.77531.7491

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.182 C1 C2 H6 109.710
C1 C2 H7 109.710 C2 C1 S3 125.881
C2 C1 H4 115.051 S3 C1 H4 119.068
H5 C2 H6 109.649 H5 C2 H7 109.649
H6 C2 H7 106.841
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability