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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: MP3/cc-pV(T+d)Z

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP3/cc-pV(T+d)Z
 hartrees
Energy at 0K-476.158271
Energy at 298.15K-476.162768
HF Energy-475.612866
Nuclear repulsion energy101.403386
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 MP3/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 A1 3192 3192 11.00      
2 A1 1524 1524 2.72      
3 A1 1160 1160 1.72      
4 A1 1066 1066 1.02      
5 A1 661 661 22.28      
6 A2 3274 3274 0.00      
7 A2 1216 1216 0.00      
8 A2 920 920 0.00      
9 B1 3288 3288 3.25      
10 B1 980 980 3.06      
11 B1 846 846 0.30      
12 B2 3188 3188 9.59      
13 B2 1497 1497 0.51      
14 B2 1097 1097 25.20      
15 B2 706 706 1.06      

Unscaled Zero Point Vibrational Energy (zpe) 12306.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12306.8 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 MP3/cc-pV(T+d)Z
ABC
0.73814 0.36210 0.26892

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/cc-pV(T+d)Z

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.862
C2 0.000 0.742 -0.793
C3 0.000 -0.742 -0.793
H4 -0.912 1.247 -1.070
H5 0.912 1.247 -1.070
H6 0.912 -1.247 -1.070
H7 -0.912 -1.247 -1.070

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.81441.81442.47402.47402.47402.4740
C21.81441.48431.07851.07852.20552.2055
C31.81441.48432.20552.20551.07851.0785
H42.47401.07852.20551.82413.08952.4936
H52.47401.07852.20551.82412.49363.0895
H62.47402.20551.07853.08952.49361.8241
H72.47402.20551.07852.49363.08951.8241

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.857 S1 C2 H4 115.187
S1 C2 H5 115.187 S1 C3 C2 65.857
S1 C3 H6 115.187 S1 C3 H7 115.187
C2 S1 C3 48.287 C2 C3 H6 117.901
C2 C3 H7 117.901 C3 C2 H4 117.901
C3 C2 H5 117.901 H4 C2 H5 115.490
H6 C3 H7 115.490
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability