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: B3PW91/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 B3PW91/aug-cc-pVTZ
 hartrees
Energy at 0K-476.770499
Energy at 298.15K-476.774302
HF Energy-476.770499
Nuclear repulsion energy93.109993
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 B3PW91/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' 3145 3035 6.04      
2 A' 3072 2965 20.73      
3 A' 3015 2910 2.82      
4 A' 1472 1420 7.25      
5 A' 1376 1328 39.32      
6 A' 1374 1326 48.07      
7 A' 1171 1130 43.99      
8 A' 1082 1044 7.73      
9 A' 838 809 1.27      
10 A' 392 378 2.15      
11 A" 3066 2959 3.97      
12 A" 1459 1408 9.51      
13 A" 1040 1003 4.31      
14 A" 765 739 13.73      
15 A" 171 165 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 11718.9 cm-1
Scaled (by 0.9651) Zero Point Vibrational Energy (zpe) 11309.9 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 B3PW91/aug-cc-pVTZ
ABC
1.65214 0.19202 0.17761

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.619 0.000
C2 -1.481 0.713 0.000
S3 0.872 -0.742 0.000
H4 0.521 1.579 0.000
H5 -1.950 -0.269 0.000
H6 -1.816 1.282 0.875
H7 -1.816 1.282 -0.875

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.48441.61611.09222.14242.12162.1216
C21.48442.76662.18181.08781.09541.0954
S31.61612.76662.34702.86083.47593.4759
H41.09222.18182.34703.08542.51312.5131
H52.14241.08782.86083.08541.78511.7851
H62.12161.09543.47592.51311.78511.7493
H72.12161.09543.47592.51311.78511.7493

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.867 C1 C2 H6 109.730
C1 C2 H7 109.730 C2 C1 S3 126.275
C2 C1 H4 114.874 S3 C1 H4 118.851
H5 C2 H6 109.691 H5 C2 H7 109.691
H6 C2 H7 105.961
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.257      
2 C -0.476      
3 S -0.283      
4 H 0.294      
5 H 0.254      
6 H 0.234      
7 H 0.234      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.722 1.912 0.000 2.573
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.489 -0.640 0.000
y -0.640 -25.240 0.000
z 0.000 0.000 -26.037
Traceless
 xyz
x -0.850 -0.640 0.000
y -0.640 1.023 0.000
z 0.000 0.000 -0.172
Polar
3z2-r2-0.345
x2-y2-1.249
xy-0.640
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.289 -1.615 0.000
y -1.615 7.970 0.000
z 0.000 0.000 5.417


<r2> (average value of r2) Å2
<r2> 73.719
(<r2>)1/2 8.586