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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: MP3=FULL/aug-cc-pVDZ

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=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-476.053573
Energy at 298.15K-476.058026
HF Energy-475.576742
Nuclear repulsion energy100.150419
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=FULL/aug-cc-pVDZ
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 3185 3185 12.29      
2 A1 1506 1506 2.21      
3 A1 1155 1155 2.83      
4 A1 1050 1050 0.47      
5 A1 648 648 23.10      
6 A2 3271 3271 0.00      
7 A2 1201 1201 0.00      
8 A2 896 896 0.00      
9 B1 3286 3286 3.02      
10 B1 960 960 2.52      
11 B1 835 835 0.43      
12 B2 3178 3178 8.72      
13 B2 1471 1471 0.33      
14 B2 1068 1068 21.38      
15 B2 672 672 0.85      

Unscaled Zero Point Vibrational Energy (zpe) 12190.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12190.9 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=FULL/aug-cc-pVDZ
ABC
0.72658 0.35108 0.26201

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.876
C2 0.000 0.746 -0.808
C3 0.000 -0.746 -0.808
H4 -0.924 1.259 -1.079
H5 0.924 1.259 -1.079
H6 0.924 -1.259 -1.079
H7 -0.924 -1.259 -1.079

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.84171.84172.50222.50222.50222.5022
C21.84171.49281.09071.09072.22462.2246
C31.84171.49282.22462.22461.09071.0907
H42.50221.09072.22461.84723.12312.5182
H52.50221.09072.22461.84722.51823.1231
H62.50222.22461.09073.12312.51821.8472
H72.50222.22461.09072.51823.12311.8472

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 66.090 S1 C2 H4 114.714
S1 C2 H5 114.714 S1 C3 C2 66.090
S1 C3 H6 114.714 S1 C3 H7 114.714
C2 S1 C3 47.820 C2 C3 H6 118.038
C2 C3 H7 118.038 C3 C2 H4 118.038
C3 C2 H5 118.038 H4 C2 H5 115.732
H6 C3 H7 115.732
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability