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: mPW1PW91/cc-pV(T+d)Z

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at mPW1PW91/cc-pV(T+d)Z
 hartrees
Energy at 0K-476.832132
Energy at 298.15K-476.835951
HF Energy-476.832132
Nuclear repulsion energy93.369619
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 mPW1PW91/cc-pV(T+d)Z
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' 3164 3030 6.85      
2 A' 3089 2959 21.96      
3 A' 3033 2906 2.74      
4 A' 1481 1418 7.18      
5 A' 1387 1328 66.74      
6 A' 1383 1325 21.33      
7 A' 1183 1133 41.80      
8 A' 1089 1043 7.40      
9 A' 846 811 1.35      
10 A' 395 378 2.25      
11 A" 3087 2957 5.02      
12 A" 1467 1405 9.71      
13 A" 1047 1003 3.54      
14 A" 771 738 13.50      
15 A" 174 166 0.18      

Unscaled Zero Point Vibrational Energy (zpe) 11797.6 cm-1
Scaled (by 0.9579) Zero Point Vibrational Energy (zpe) 11300.9 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 mPW1PW91/cc-pV(T+d)Z
ABC
1.65644 0.19321 0.17867

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pV(T+d)Z

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.616 0.000
C2 -1.481 0.705 0.000
S3 0.872 -0.736 0.000
H4 0.516 1.578 0.000
H5 -1.942 -0.279 0.000
H6 -1.818 1.270 0.874
H7 -1.818 1.270 -0.874

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.48361.60871.09112.13872.12022.1202
C21.48362.75862.17941.08661.09411.0941
S31.60872.75862.34062.85083.46703.4670
H41.09112.17942.34063.08072.51082.5108
H52.13871.08662.85083.08071.78321.7832
H62.12021.09413.46702.51081.78321.7480
H72.12021.09413.46702.51081.78321.7480

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.706 C1 C2 H6 109.755
C1 C2 H7 109.755 C2 C1 S3 126.231
C2 C1 H4 114.802 S3 C1 H4 118.967
H5 C2 H6 109.712 H5 C2 H7 109.712
H6 C2 H7 106.042
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pV(T+d)Z Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.099      
2 C -0.199      
3 S -0.140      
4 H 0.131      
5 H 0.106      
6 H 0.100      
7 H 0.100      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.673 1.865 0.000 2.505
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.307 -0.614 0.000
y -0.614 -25.067 0.000
z 0.000 0.000 -25.846
Traceless
 xyz
x -0.850 -0.614 0.000
y -0.614 1.009 0.000
z 0.000 0.000 -0.159
Polar
3z2-r2-0.318
x2-y2-1.240
xy-0.614
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.196 -1.906 0.000
y -1.906 7.212 0.000
z 0.000 0.000 4.295


<r2> (average value of r2) Å2
<r2> 73.281
(<r2>)1/2 8.560