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 (Thietane)

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 CS 1A'
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-512.480048
Energy at 298.15K-512.487144
HF Energy-512.085573
Nuclear repulsion energy162.349908
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' 3208 3052 21.81      
2 A' 3181 3026 4.89      
3 A' 3135 2982 11.31      
4 A' 3125 2973 17.22      
5 A' 1590 1512 1.49      
6 A' 1570 1493 4.25      
7 A' 1310 1246 1.48      
8 A' 1247 1186 1.13      
9 A' 1027 977 2.54      
10 A' 918 873 0.08      
11 A' 886 843 3.86      
12 A' 701 667 3.85      
13 A' 539 512 3.71      
14 A' 169 161 1.80      
15 A" 3201 3046 3.89      
16 A" 3134 2981 38.03      
17 A" 1571 1495 0.08      
18 A" 1362 1296 3.76      
19 A" 1308 1244 14.32      
20 A" 1242 1181 1.68      
21 A" 1094 1040 0.24      
22 A" 953 906 0.66      
23 A" 844 803 0.05      
24 A" 664 632 2.58      

Unscaled Zero Point Vibrational Energy (zpe) 18988.4 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 18063.7 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
0.33169 0.21514 0.14407

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.391 1.036 0.000
C2 -0.237 -0.293 1.157
C3 -0.237 -0.293 -1.157
C4 -0.237 -1.353 0.000
H5 -1.238 -0.030 1.504
H6 0.431 -0.468 2.000
H7 -1.238 -0.030 -1.504
H8 0.431 -0.468 -2.000
H9 -1.076 -2.052 0.000
H10 0.709 -1.901 0.000

Atom - Atom Distances (Å)
  S1 C2 C3 C4 H5 H6 H7 H8 H9 H10
S11.87031.87032.47062.45972.50312.45972.50313.41922.9542
C21.87032.31361.56941.09171.08992.85483.23172.26702.1952
C31.87032.31361.56942.85483.23171.09171.08992.26702.1952
C42.47061.56941.56942.23952.28702.23952.28701.09231.0928
H52.45971.09172.85482.23951.79543.00743.90572.52563.0907
H62.50311.08993.23172.28701.79543.90574.00052.96342.4761
H72.45972.85481.09172.23953.00743.90571.79542.52563.0907
H82.50313.23171.08992.28703.90574.00051.79542.96342.4761
H93.41922.26702.26701.09232.52562.96342.52562.96341.7915
H102.95422.19522.19521.09283.09072.47613.09072.47611.7915

picture of Thietane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C4 91.391 S1 C2 H5 109.459
S1 C2 H6 112.794 S1 C3 C4 91.391
S1 C3 H7 109.459 S1 C3 H8 112.794
C2 S1 C3 76.416 C2 C4 C3 94.968
C2 C4 H9 115.629 C2 C4 H10 109.788
C3 C4 H9 115.629 C3 C4 H10 109.788
C4 C2 H5 113.390 C4 C2 H6 117.497
C4 C3 H7 113.390 C4 C3 H8 117.497
H5 C2 H6 110.768 H7 C3 H8 110.768
H9 C4 H10 110.142
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability