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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: MP2=FULL/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2=FULL/6-31+G**
 hartrees
Energy at 0K-475.988069
Energy at 298.15K-475.992593
HF Energy-475.554820
Nuclear repulsion energy101.437934
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=FULL/6-31+G**
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 3224 3028 9.69      
2 A1 1556 1461 5.80      
3 A1 1186 1114 3.73      
4 A1 1102 1035 1.27      
5 A1 677 636 21.24      
6 A2 3317 3115 0.00      
7 A2 1223 1149 0.00      
8 A2 949 892 0.00      
9 B1 3328 3126 3.22      
10 B1 1000 939 4.78      
11 B1 862 810 0.34      
12 B2 3221 3025 7.67      
13 B2 1526 1433 0.12      
14 B2 1132 1064 42.09      
15 B2 713 669 2.84      

Unscaled Zero Point Vibrational Energy (zpe) 12507.3 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 11746.8 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 MP2=FULL/6-31+G**
ABC
0.73998 0.36212 0.26914

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.863
C2 0.000 0.741 -0.791
C3 0.000 -0.741 -0.791
H4 -0.912 1.246 -1.077
H5 0.912 1.246 -1.077
H6 0.912 -1.246 -1.077
H7 -0.912 -1.246 -1.077

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.81251.81252.47912.47912.47912.4791
C21.81251.48161.08071.08072.20472.2047
C31.81251.48162.20472.20471.08071.0807
H42.47911.08072.20471.82313.08812.4926
H52.47911.08072.20471.82312.49263.0881
H62.47912.20471.08073.08812.49261.8231
H72.47912.20471.08072.49263.08811.8231

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.876 S1 C2 H4 115.604
S1 C2 H5 115.604 S1 C3 C2 65.876
S1 C3 H6 115.604 S1 C3 H7 115.604
C2 S1 C3 48.248 C2 C3 H6 117.891
C2 C3 H7 117.891 C3 C2 H4 117.891
C3 C2 H5 117.891 H4 C2 H5 115.020
H6 C3 H7 115.020
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability