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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: MP2=FULL/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-476.213035
Energy at 298.15K-476.217518
HF Energy-475.612222
Nuclear repulsion energy101.682138
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/aug-cc-pVTZ
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 3186 3031 10.30      
2 A1 1510 1437 2.25      
3 A1 1163 1106 1.48      
4 A1 1054 1003 1.26      
5 A1 667 635 19.23      
6 A2 3253 3095 0.00      
7 A2 1205 1147 0.00      
8 A2 899 855 0.00      
9 B1 3266 3108 0.45      
10 B1 965 918 3.06      
11 B1 839 798 0.70      
12 B2 3181 3026 5.28      
13 B2 1484 1412 1.08      
14 B2 1070 1018 21.03      
15 B2 708 673 1.20      

Unscaled Zero Point Vibrational Energy (zpe) 12224.2 cm-1
Scaled (by 0.9514) Zero Point Vibrational Energy (zpe) 11630.1 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=FULL/aug-cc-pVTZ
ABC
0.74528 0.36317 0.27049

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.861
C2 0.000 0.737 -0.793
C3 0.000 -0.737 -0.793
H4 -0.911 1.243 -1.066
H5 0.911 1.243 -1.066
H6 0.911 -1.243 -1.066
H7 -0.911 -1.243 -1.066

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.81051.81052.46782.46782.46782.4678
C21.81051.47381.07751.07752.19652.1965
C31.81051.47382.19652.19651.07751.0775
H42.46781.07752.19651.82223.08232.4859
H52.46781.07752.19651.82222.48593.0823
H62.46782.19651.07753.08232.48591.8222
H72.46782.19651.07752.48593.08231.8222

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.983 S1 C2 H4 115.029
S1 C2 H5 115.029 S1 C3 C2 65.983
S1 C3 H6 115.029 S1 C3 H7 115.029
C2 S1 C3 48.034 C2 C3 H6 118.011
C2 C3 H7 118.011 C3 C2 H4 118.011
C3 C2 H5 118.011 H4 C2 H5 115.463
H6 C3 H7 115.463
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability