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All results from a given calculation for C4H6S (Thiophene, 2,3-dihydro-)

using model chemistry: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-553.088494
Energy at 298.15K-553.095469
HF Energy-552.452041
Nuclear repulsion energy217.185486
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 MP2/6-31G*
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 3285 3098 6.46      
2 A 3255 3070 1.00      
3 A 3208 3025 7.74      
4 A 3155 2975 20.67      
5 A 3132 2953 13.56      
6 A 3078 2903 27.84      
7 A 1650 1556 7.55      
8 A 1549 1460 0.78      
9 A 1532 1444 2.49      
10 A 1383 1304 0.68      
11 A 1372 1294 3.66      
12 A 1325 1250 17.08      
13 A 1240 1170 2.06      
14 A 1186 1119 0.22      
15 A 1153 1087 1.57      
16 A 1060 999 4.91      
17 A 1040 980 2.51      
18 A 957 902 2.46      
19 A 913 861 0.84      
20 A 895 844 1.82      
21 A 822 775 21.23      
22 A 721 680 5.68      
23 A 698 659 27.94      
24 A 664 626 24.73      
25 A 510 481 0.68      
26 A 411 388 2.73      
27 A 189 178 1.35      

Unscaled Zero Point Vibrational Energy (zpe) 20190.3 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 19039.5 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 MP2/6-31G*
ABC
0.23031 0.15630 0.09873

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.071 -1.254 0.215
H2 -0.065 -1.510 1.277
H3 0.126 -2.153 -0.372
C4 -1.387 -0.567 -0.178
H5 -2.217 -0.970 0.413
H6 -1.622 -0.748 -1.236
C7 0.112 1.275 0.085
H8 0.490 2.287 0.178
C9 -1.176 0.904 0.057
H10 -2.001 1.606 0.117
S11 1.276 -0.041 -0.091

Atom - Atom Distances (Å)
  C1 H2 H3 C4 H5 H6 C7 H8 C9 H10 S11
C11.09281.09101.53532.17322.18282.53863.58512.42903.45211.8386
H21.09281.77992.18002.38073.05273.03393.99102.92343.84772.4138
H31.09101.77992.20022.73902.40313.45774.48833.34954.34702.4213
C41.53532.18002.20021.09521.09912.38913.43421.50422.27782.7161
H52.17322.38072.73901.09521.76683.25104.24112.17282.60233.6493
H62.18283.05272.40311.09911.76682.97393.95872.14462.74223.1956
C72.53863.03393.45772.38913.25102.97391.08441.34042.13971.7654
H83.58513.99104.48833.43424.24113.95871.08442.16832.58322.4716
C92.42902.92343.34951.50422.17282.14461.34042.16831.08612.6316
H103.45213.84774.34702.27782.60232.74222.13972.58321.08613.6742
S111.83862.41382.42132.71613.64933.19561.76542.47162.63163.6742

picture of Thiophene, 2,3-dihydro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C4 H5 110.291 C1 C4 H6 110.820
C1 C4 C9 106.094 C1 S11 C7 89.534
H2 C1 H3 109.184 H2 C1 C4 110.977
H2 C1 S11 108.152 H3 C1 C4 112.717
H3 C1 S11 108.783 C4 C1 S11 106.885
C4 C9 C7 114.134 C4 C9 H10 122.309
H5 C4 H6 107.252 H5 C4 C9 112.465
H6 C4 C9 109.965 C7 C9 H10 123.384
H8 C7 C9 126.496 H8 C7 S11 118.322
C9 C7 S11 115.163
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability