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All results from a given calculation for CH3CHS (Thioacetaldehyde)

using model chemistry: MP2/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at MP2/6-31G(2df,p)
 hartrees
Energy at 0K-476.047037
Energy at 298.15K-476.050861
HF Energy-475.568579
Nuclear repulsion energy92.915423
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 MP2/6-31G(2df,p)
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' 3227 3048 2.59      
2 A' 3143 2969 12.91      
3 A' 3091 2919 1.66      
4 A' 1507 1423 4.45      
5 A' 1408 1330 23.38      
6 A' 1393 1316 39.37      
7 A' 1197 1130 17.75      
8 A' 1095 1034 2.48      
9 A' 847 800 3.05      
10 A' 397 375 1.52      
11 A" 3168 2993 2.79      
12 A" 1500 1417 8.41      
13 A" 1057 998 3.01      
14 A" 773 730 13.77      
15 A" 176 167 0.11      

Unscaled Zero Point Vibrational Energy (zpe) 11989.5 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 11324.1 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 MP2/6-31G(2df,p)
ABC
1.63032 0.19148 0.17693

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.624 0.000
C2 -1.493 0.701 0.000
S3 0.878 -0.735 0.000
H4 0.513 1.588 0.000
H5 -1.942 -0.290 0.000
H6 -1.833 1.260 0.877
H7 -1.833 1.260 -0.877

Atom - Atom Distances (Å)
  C1 C2 S3 H4 H5 H6 H7
C11.49491.61811.09262.14632.12942.1294
C21.49492.77252.19351.08831.09411.0941
S31.61812.77252.35212.85543.47893.4789
H41.09262.19352.35213.09142.52642.5264
H52.14631.08832.85543.09141.78411.7841
H62.12941.09413.47892.52641.78411.7540
H72.12941.09413.47892.52641.78411.7540

picture of Thioacetaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 111.403 C1 C2 H6 109.701
C1 C2 H7 109.701 C2 C1 S3 125.851
C2 C1 H4 115.042 S3 C1 H4 119.107
H5 C2 H6 109.674 H5 C2 H7 109.674
H6 C2 H7 106.568
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability