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: B1B95/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 B1B95/cc-pV(T+d)Z
 hartrees
Energy at 0K-476.832196
Energy at 298.15K-476.836013
HF Energy-476.832196
Nuclear repulsion energy93.527667
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 B1B95/cc-pV(T+d)Z
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' 3168 3033 7.45      
2 A' 3091 2959 22.90      
3 A' 3037 2907 3.05      
4 A' 1480 1417 7.02      
5 A' 1386 1327 73.28      
6 A' 1380 1321 15.33      
7 A' 1183 1132 39.36      
8 A' 1086 1040 6.68      
9 A' 846 809 1.42      
10 A' 391 374 2.24      
11 A" 3091 2959 5.57      
12 A" 1467 1404 9.25      
13 A" 1045 1000 3.67      
14 A" 770 737 12.91      
15 A" 175 168 0.19      

Unscaled Zero Point Vibrational Energy (zpe) 11797.3 cm-1
Scaled (by 0.9573) Zero Point Vibrational Energy (zpe) 11293.5 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 B1B95/cc-pV(T+d)Z
ABC
1.65779 0.19399 0.17934

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/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 -1.480 0.701 0.000
S3 0.871 -0.733 0.000
H4 0.513 1.577 0.000
H5 -1.936 -0.284 0.000
H6 -1.818 1.264 0.873
H7 -1.818 1.264 -0.873

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.48211.60591.08922.13452.11762.1176
C21.48212.75322.17721.08461.09211.0921
S31.60592.75322.33742.84223.46063.4606
H41.08922.17722.33743.07552.50872.5087
H52.13451.08462.84223.07551.78011.7801
H62.11761.09213.46062.50871.78011.7453
H72.11761.09213.46062.50871.78011.7453

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.591 C1 C2 H6 109.773
C1 C2 H7 109.773 C2 C1 S3 126.104
C2 C1 H4 114.857 S3 C1 H4 119.038
H5 C2 H6 109.733 H5 C2 H7 109.733
H6 C2 H7 106.087
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pV(T+d)Z Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.119      
2 C -0.292      
3 S -0.133      
4 H 0.157      
5 H 0.132      
6 H 0.128      
7 H 0.128      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.637 1.822 0.000 2.450
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.291 -0.613 0.000
y -0.613 -25.067 0.000
z 0.000 0.000 -25.814
Traceless
 xyz
x -0.851 -0.613 0.000
y -0.613 0.986 0.000
z 0.000 0.000 -0.135
Polar
3z2-r2-0.269
x2-y2-1.225
xy-0.613
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.186 -1.888 0.000
y -1.888 7.190 0.000
z 0.000 0.000 4.283


<r2> (average value of r2) Å2
<r2> 73.059
(<r2>)1/2 8.547