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

using model chemistry: CCD/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-553.204862
Energy at 298.15K-553.211643
HF Energy-552.483737
Nuclear repulsion energy214.321832
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/cc-pVDZ
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 3235 3095 15.40      
2 A1 3078 2945 0.01      
3 A1 1739 1664 5.30      
4 A1 1496 1431 3.63      
5 A1 1310 1253 0.31      
6 A1 1141 1091 0.30      
7 A1 979 937 0.12      
8 A1 735 703 1.47      
9 A1 521 498 0.06      
10 A2 3124 2989 0.00      
11 A2 1157 1106 0.00      
12 A2 975 933 0.00      
13 A2 950 909 0.00      
14 A2 368 352 0.00      
15 B1 3125 2990 26.27      
16 B1 1143 1093 11.15      
17 B1 916 876 0.95      
18 B1 686 657 38.03      
19 B1 83 80 3.02      
20 B2 3209 3070 3.08      
21 B2 3078 2945 67.28      
22 B2 1492 1427 0.22      
23 B2 1379 1319 1.66      
24 B2 1266 1211 7.67      
25 B2 993 950 5.76      
26 B2 835 799 0.64      
27 B2 661 633 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 19836.3 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 18977.4 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/cc-pVDZ
ABC
0.21835 0.15701 0.09463

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.256
C2 0.000 1.353 0.003
C3 0.000 -1.353 0.003
C4 0.000 0.671 -1.346
C5 0.000 -0.671 -1.346
H6 -0.893 1.990 0.136
H7 0.893 1.990 0.136
H8 0.893 -1.990 0.136
H9 -0.893 -1.990 0.136
H10 0.000 1.272 -2.263
H11 0.000 -1.272 -2.263

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.84381.84382.68732.68732.45242.45242.45242.45243.74223.7422
C21.84382.70611.51192.43311.10521.10523.46313.46312.26823.4685
C31.84382.70612.43311.51193.46313.46311.10521.10523.46852.2682
C42.68731.51192.43311.34282.17562.17563.17473.17471.09652.1492
C52.68732.43311.51191.34283.17473.17472.17562.17562.14921.0965
H62.45241.10523.46312.17563.17471.78654.36313.98062.65884.1470
H72.45241.10523.46312.17563.17471.78653.98064.36312.65884.1470
H82.45243.46311.10523.17472.17564.36313.98061.78654.14702.6588
H92.45243.46311.10523.17472.17563.98064.36311.78654.14702.6588
H103.74222.26823.46851.09652.14922.65882.65884.14704.14702.5445
H113.74223.46852.26822.14921.09654.14704.14702.65882.65882.5445

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 105.993 S1 C2 H6 109.985
S1 C2 H7 109.985 S1 C3 C5 105.993
S1 C3 H8 109.985 S1 C3 H9 109.985
C2 S1 C3 94.418 C2 C4 C5 116.798
C2 C4 H10 119.974 C3 C5 C4 116.798
C3 C5 H11 119.974 C4 C2 H6 111.519
C4 C2 H7 111.519 C4 C5 H11 123.228
C5 C3 H8 111.519 C5 C3 H9 111.519
C5 C4 H10 123.228 H6 C2 H7 107.846
H8 C3 H9 107.846
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability