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All results from a given calculation for C4H6S (Thiophene, 2,5-dihydro-)

using model chemistry: CCD/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCD/6-31G**
 hartrees
Energy at 0K-553.180859
Energy at 298.15K-553.187688
HF Energy-552.465097
Nuclear repulsion energy215.784558
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 CCD/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 A1 3283 3079 17.98      
2 A1 3132 2937 0.08      
3 A1 1762 1652 5.56      
4 A1 1560 1463 4.94      
5 A1 1358 1273 0.56      
6 A1 1179 1105 0.61      
7 A1 990 929 0.02      
8 A1 751 704 1.46      
9 A1 532 499 0.18      
10 A2 3178 2980 0.00      
11 A2 1192 1118 0.00      
12 A2 1010 947 0.00      
13 A2 961 901 0.00      
14 A2 371 348 0.00      
15 B1 3179 2981 25.30      
16 B1 1176 1103 10.29      
17 B1 956 897 0.78      
18 B1 697 653 38.19      
19 B1 79 74 4.04      
20 B2 3260 3056 3.65      
21 B2 3132 2937 64.33      
22 B2 1556 1459 0.75      
23 B2 1414 1326 2.02      
24 B2 1320 1238 8.25      
25 B2 1012 949 3.99      
26 B2 848 795 0.65      
27 B2 673 631 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 20281.2 cm-1
Scaled (by 0.9376) Zero Point Vibrational Energy (zpe) 19015.7 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 CCD/6-31G**
ABC
0.22137 0.15890 0.09580

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.249
C2 0.000 1.345 0.004
C3 0.000 -1.345 0.004
C4 0.000 0.667 -1.339
C5 0.000 -0.667 -1.339
H6 -0.882 1.974 0.132
H7 0.882 1.974 0.132
H8 0.882 -1.974 0.132
H9 -0.882 -1.974 0.132
H10 0.000 1.264 -2.242
H11 0.000 -1.264 -2.242

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.83321.83322.67282.67282.43362.43362.43362.43363.71253.7125
C21.83322.69021.50452.41871.09071.09073.43673.43672.24663.4421
C31.83322.69022.41871.50453.43673.43671.09071.09073.44212.2466
C42.67281.50452.41871.33312.15692.15693.14893.14891.08222.1311
C52.67282.41871.50451.33313.14893.14892.15692.15692.13111.0822
H62.43361.09073.43672.15693.14891.76344.32423.94832.62994.1107
H72.43361.09073.43672.15693.14891.76343.94834.32422.62994.1107
H82.43363.43671.09073.14892.15694.32423.94831.76344.11072.6299
H92.43363.43671.09073.14892.15693.94834.32421.76344.11072.6299
H103.71252.24663.44211.08222.13112.62992.62994.11074.11072.5280
H113.71253.44212.24662.13111.08224.11074.11072.62992.62992.5280

picture of Thiophene, 2,5-dihydro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C4 105.992 S1 C2 H6 110.064
S1 C2 H7 110.064 S1 C3 C5 105.992
S1 C3 H8 110.064 S1 C3 H9 110.064
C2 S1 C3 94.401 C2 C4 C5 116.808
C2 C4 H10 119.685 C3 C5 C4 116.808
C3 C5 H11 119.685 C4 C2 H6 111.427
C4 C2 H7 111.427 C4 C5 H11 123.508
C5 C3 H8 111.427 C5 C3 H9 111.427
C5 C4 H10 123.508 H6 C2 H7 107.878
H8 C3 H9 107.878
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability