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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: B1B95/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B1B95/6-31G
 hartrees
Energy at 0K-476.726663
Energy at 298.15K-476.730468
HF Energy-476.726663
Nuclear repulsion energy91.783308
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 B1B95/6-31G
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' 3191 3043 11.51      
2 A' 3149 3003 14.08      
3 A' 3041 2900 2.49      
4 A' 1516 1446 6.80      
5 A' 1438 1371 23.01      
6 A' 1410 1345 62.09      
7 A' 1190 1135 40.16      
8 A' 1108 1057 18.78      
9 A' 838 800 0.09      
10 A' 400 381 2.03      
11 A" 3103 2960 6.32      
12 A" 1508 1438 17.42      
13 A" 1069 1020 2.07      
14 A" 789 752 25.52      
15 A" 160 153 0.48      

Unscaled Zero Point Vibrational Energy (zpe) 11955.3 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 11401.8 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 B1B95/6-31G
ABC
1.62166 0.18622 0.17234

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.642 0.000
C2 -1.480 0.757 0.000
S3 0.870 -0.776 0.000
H4 0.547 1.586 0.000
H5 -1.962 -0.220 0.000
H6 -1.814 1.326 0.878
H7 -1.814 1.326 -0.878

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.48461.66331.09112.14332.12792.1279
C21.48462.80582.19031.08971.09801.0980
S31.66332.80582.38352.88633.52003.5200
H41.09112.19032.38353.09192.53212.5321
H52.14331.08972.88633.09191.78431.7843
H62.12791.09803.52002.53211.78431.7555
H72.12791.09803.52002.53211.78431.7555

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.820 C1 C2 H6 110.062
C1 C2 H7 110.062 C2 C1 S3 125.984
C2 C1 H4 115.654 S3 C1 H4 118.362
H5 C2 H6 109.295 H5 C2 H7 109.295
H6 C2 H7 106.143
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.364      
2 C -0.480      
3 S 0.056      
4 H 0.202      
5 H 0.198      
6 H 0.193      
7 H 0.193      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.923 2.269 0.000 2.974
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.322 -0.319 0.000
y -0.319 -25.285 0.000
z 0.000 0.000 -25.848
Traceless
 xyz
x -0.755 -0.319 0.000
y -0.319 0.800 0.000
z 0.000 0.000 -0.045
Polar
3z2-r2-0.090
x2-y2-1.037
xy-0.319
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.932 -2.163 0.000
y -2.163 6.606 0.000
z 0.000 0.000 3.206


<r2> (average value of r2) Å2
<r2> 75.269
(<r2>)1/2 8.676