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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: CID/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CID/6-311+G(3df,2p)
 hartrees
Energy at 0K-476.074801
Energy at 298.15K-476.079353
HF Energy-475.605098
Nuclear repulsion energy102.109867
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 CID/6-311+G(3df,2p)
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 3233 2987 13.01      
2 A1 1564 1445 2.68      
3 A1 1191 1100 1.48      
4 A1 1096 1013 0.55      
5 A1 683 631 27.79      
6 A2 3316 3064 0.00      
7 A2 1244 1150 0.00      
8 A2 944 872 0.00      
9 B1 3330 3077 1.91      
10 B1 1010 934 2.60      
11 B1 864 799 0.59      
12 B2 3227 2982 8.68      
13 B2 1533 1417 0.76      
14 B2 1140 1054 22.82      
15 B2 740 684 1.21      

Unscaled Zero Point Vibrational Energy (zpe) 12557.6 cm-1
Scaled (by 0.924) Zero Point Vibrational Energy (zpe) 11603.2 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 CID/6-311+G(3df,2p)
ABC
0.74502 0.36849 0.27307

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.855
C2 0.000 0.738 -0.785
C3 0.000 -0.738 -0.785
H4 -0.908 1.243 -1.064
H5 0.908 1.243 -1.064
H6 0.908 -1.243 -1.064
H7 -0.908 -1.243 -1.064

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.79841.79842.46012.46012.46012.4601
C21.79841.47641.07541.07542.19702.1970
C31.79841.47642.19702.19701.07541.0754
H42.46011.07542.19701.81513.07812.4860
H52.46011.07542.19701.81512.48603.0781
H62.46012.19701.07543.07812.48601.8151
H72.46012.19701.07542.48603.07811.8151

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.765 S1 C2 H4 115.441
S1 C2 H5 115.441 S1 C3 C2 65.765
S1 C3 H6 115.441 S1 C3 H7 115.441
C2 S1 C3 48.470 C2 C3 H6 117.995
C2 C3 H7 117.995 C3 C2 H4 117.995
C3 C2 H5 117.995 H4 C2 H5 115.109
H6 C3 H7 115.109
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability