return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C3H6S (Thiirane, methyl-)

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-512.484159
Energy at 298.15K-512.490851
HF Energy-512.085395
Nuclear repulsion energy158.771747
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 MP2/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3276 3116 2.76      
2 A 3212 3056 6.50      
3 A 3181 3026 6.27      
4 A 3167 3012 9.83      
5 A 3153 2999 11.05      
6 A 3081 2931 15.26      
7 A 1598 1521 7.65      
8 A 1587 1509 4.22      
9 A 1564 1488 4.14      
10 A 1498 1425 6.50      
11 A 1422 1353 5.40      
12 A 1241 1180 3.40      
13 A 1199 1141 7.14      
14 A 1159 1102 22.48      
15 A 1125 1070 3.70      
16 A 1080 1027 3.74      
17 A 989 940 4.91      
18 A 958 912 2.67      
19 A 883 840 2.37      
20 A 635 604 1.28      
21 A 601 572 18.58      
22 A 401 382 0.16      
23 A 313 298 1.65      
24 A 242 230 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 18780.9 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 17866.3 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 MP2/3-21G*
ABC
0.38160 0.15928 0.12933

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.783 -0.308 -0.184
C2 -0.518 0.160 0.522
C3 0.370 1.164 -0.158
S4 1.095 -0.529 -0.056
H5 -1.601 -0.387 -1.260
H6 -2.093 -1.290 0.187
H7 -2.595 0.408 -0.008
H8 -0.590 0.243 1.603
H9 0.082 1.486 -1.154
H10 0.859 1.917 0.451

Atom - Atom Distances (Å)
  C1 C2 C3 S4 H5 H6 H7 H8 H9 H10
C11.52252.60842.88941.09481.09441.09682.21792.76373.5115
C21.52251.50301.84672.15612.16702.15801.08612.21962.2329
C32.60841.50301.84432.73953.49403.06372.20651.08551.0845
S42.88941.84671.84432.95583.28673.80742.48742.50802.5091
H51.09482.15612.73952.95581.77571.78593.10092.52003.7794
H61.09442.16703.49403.28671.77571.78132.57193.77294.3663
H71.09682.15803.06373.80741.78591.78132.57703.10513.7964
H82.21791.08612.20652.48743.10092.57192.57703.09722.4948
H92.76372.21961.08552.50802.52003.77293.10513.09721.8341
H103.51152.23291.08452.50913.77944.36633.79642.49481.8341

picture of Thiirane, methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 119.118 C1 C2 S4 117.769
C1 C2 H8 115.450 C2 C1 H5 109.853
C2 C1 H6 110.739 C2 C1 H7 109.880
C2 C3 S4 66.056 C2 C3 H9 117.153
C2 C3 H10 118.402 C2 S4 C3 48.057
C3 C2 S4 65.886 C3 C2 H8 115.973
S4 C2 H8 113.461 S4 C3 H9 115.284
S4 C3 H10 115.430 H5 C1 H6 108.412
H5 C1 H7 109.150 H6 C1 H7 108.769
H9 C3 H10 115.386
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability