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: CCD/aug-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 CCD/aug-cc-pVDZ
 hartrees
Energy at 0K-476.043656
Energy at 298.15K-476.047478
HF Energy-475.582328
Nuclear repulsion energy92.190499
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 CCD/aug-cc-pVDZ
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' 3162 3049 9.17      
2 A' 3120 3009 15.84      
3 A' 3035 2927 8.22      
4 A' 1481 1428 6.12      
5 A' 1406 1356 48.21      
6 A' 1386 1337 10.65      
7 A' 1195 1152 18.92      
8 A' 1091 1052 1.78      
9 A' 848 818 2.08      
10 A' 398 384 1.61      
11 A" 3100 2990 9.44      
12 A" 1467 1415 7.01      
13 A" 1046 1009 6.77      
14 A" 761 734 13.91      
15 A" 174 168 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 11834.0 cm-1
Scaled (by 0.9645) Zero Point Vibrational Energy (zpe) 11413.9 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 CCD/aug-cc-pVDZ
ABC
1.60264 0.18861 0.17429

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.628 0.000
C2 -1.505 0.707 0.000
S3 0.885 -0.740 0.000
H4 0.522 1.598 0.000
H5 -1.957 -0.296 0.000
H6 -1.848 1.269 0.888
H7 -1.848 1.269 -0.888

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.50681.62951.10212.16432.14812.1481
C21.50682.79362.21441.09981.10571.1057
S31.62952.79362.36682.87693.50643.5064
H41.10212.21442.36683.12022.55212.5521
H52.16431.09982.87693.12021.80271.8027
H62.14811.10573.50642.55211.80271.7758
H72.14811.10573.50642.55211.80271.7758

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.307 C1 C2 H6 109.658
C1 C2 H7 109.658 C2 C1 S3 125.891
C2 C1 H4 115.282 S3 C1 H4 118.827
H5 C2 H6 109.641 H5 C2 H7 109.641
H6 C2 H7 106.831
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability