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All results from a given calculation for C3H4O2S (2H-Thiete-1,1-dioxide)

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-660.372102
Energy at 298.15K-660.378006
HF Energy-659.724414
Nuclear repulsion energy315.249038
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 3300 3140 0.31      
2 A 3269 3110 0.44      
3 A 3131 2979 1.71      
4 A 1558 1482 3.81      
5 A 1527 1452 2.65      
6 A 1315 1251 19.34      
7 A 1235 1175 106.30      
8 A 1180 1123 71.98      
9 A 1099 1046 1.67      
10 A 929 883 4.16      
11 A 839 798 0.65      
12 A 714 679 77.78      
13 A 627 596 48.67      
14 A 427 407 10.02      
15 A 404 384 5.99      
16 A 3204 3048 0.73      
17 A 1420 1351 172.15      
18 A 1128 1074 1.15      
19 A 958 911 3.01      
20 A 925 880 0.47      
21 A 766 729 87.69      
22 A 435 414 0.73      
23 A 264 251 0.43      
24 A 213 202 1.70      

Unscaled Zero Point Vibrational Energy (zpe) 15433.5 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 14681.9 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 MP2/3-21G*
ABC
0.17661 0.09832 0.09260

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 -0.020 0.508 0.000
O2 -0.020 1.239 1.267
O3 -0.020 1.239 -1.267
C4 -1.125 -0.919 0.000
H5 -2.201 -1.011 0.000
C6 -0.116 -1.823 0.000
H7 -0.153 -2.903 0.000
C8 1.152 -0.935 0.000
H9 1.759 -0.989 0.906
H10 1.759 -0.989 -0.906

Atom - Atom Distances (Å)
  S1 O2 O3 C4 H5 C6 H7 C8 H9 H10
S11.46291.46291.80492.65812.33303.41341.85842.49522.4952
O21.46292.53422.73583.38033.31544.33352.77552.87373.5849
O31.46292.53422.73583.38033.31544.33352.77553.58492.8737
C41.80492.73582.73581.08011.35472.20952.27713.02423.0242
H52.65813.38033.38031.08012.23762.78883.35414.06294.0629
C62.33303.31543.31541.35472.23761.08041.54862.24402.2440
H73.41344.33354.33352.20952.78881.08042.36142.85322.8532
C81.85842.77552.77552.27713.35411.54862.36141.09231.0923
H92.49522.87373.58493.02424.06292.24402.85321.09231.8126
H102.49523.58492.87373.02424.06292.24402.85321.09231.8126

picture of 2H-Thiete-1,1-dioxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C4 H5 132.641 S1 C4 C6 94.106
S1 C8 C6 85.928 S1 C8 H9 112.891
S1 C8 H10 112.891 O2 S1 O3 120.027
O2 S1 C4 113.273 O2 S1 C8 112.826
O3 S1 C4 113.273 O3 S1 C8 112.826
C4 S1 C8 76.851 C4 C6 H7 129.945
C4 C6 C8 103.115 H5 C4 C6 133.253
C6 C8 H9 115.272 C6 C8 H10 115.272
H7 C6 C8 126.940 H9 C8 H10 112.141
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability