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

using model chemistry: QCISD/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 QCISD/3-21G
 hartrees
Energy at 0K-550.105521
Energy at 298.15K-550.112286
HF Energy-549.639312
Nuclear repulsion energy210.522105
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 QCISD/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 3238 3138 5.46      
2 A 3177 3079 3.09      
3 A 3163 3065 7.69      
4 A 3098 3003 20.65      
5 A 3075 2980 7.67      
6 A 3028 2935 21.14      
7 A 1643 1592 3.74      
8 A 1556 1508 1.10      
9 A 1538 1491 3.13      
10 A 1367 1325 6.63      
11 A 1358 1316 0.70      
12 A 1324 1283 17.87      
13 A 1238 1200 1.41      
14 A 1186 1150 0.31      
15 A 1163 1127 0.13      
16 A 1021 990 2.94      
17 A 981 950 2.83      
18 A 953 924 2.17      
19 A 888 861 3.00      
20 A 851 825 1.14      
21 A 766 743 15.23      
22 A 703 681 55.59      
23 A 652 632 8.97      
24 A 599 580 2.52      
25 A 486 471 0.51      
26 A 396 384 1.85      
27 A 134 130 1.44      

Unscaled Zero Point Vibrational Energy (zpe) 19790.1 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 19180.6 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 QCISD/3-21G
ABC
0.21652 0.14572 0.09156

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.095 -1.313 0.202
H2 -0.072 -1.584 1.262
H3 0.103 -2.184 -0.427
C4 -1.425 -0.583 -0.170
H5 -2.248 -0.965 0.451
H6 -1.674 -0.766 -1.227
C7 0.075 1.329 0.081
H8 0.431 2.348 0.178
C9 -1.201 0.921 0.049
H10 -2.046 1.603 0.115
S11 1.336 -0.036 -0.083

Atom - Atom Distances (Å)
  C1 H2 H3 C4 H5 H6 C7 H8 C9 H10 S11
C11.09391.09291.56202.19502.19922.65063.69912.49753.50991.9395
H21.09391.80112.20922.40303.07103.14704.10973.00353.92062.4877
H31.09291.80112.22842.79042.41093.55034.58463.40154.38852.5011
C41.56202.20922.22841.09921.10182.44303.48691.53622.29062.8163
H52.19502.40302.79041.09921.78473.28544.26942.19422.59803.7409
H62.19923.07102.41091.10181.78473.02604.01282.16692.74773.3023
C72.65063.14703.55032.44303.28543.02601.08391.33962.13831.8660
H83.69914.10974.58463.48694.26944.01281.08392.17192.58732.5634
C92.49753.00353.40151.53622.19422.16691.33962.17191.08822.7147
H103.50993.92064.38852.29062.59802.74772.13832.58731.08823.7636
S111.93952.48772.50112.81633.74093.30231.86602.56342.71473.7636

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 109.921 C1 C4 H6 110.102
C1 C4 C9 107.438 C1 S11 C7 88.275
H2 C1 H3 110.892 H2 C1 C4 111.352
H2 C1 S11 106.856 H3 C1 C4 112.955
H3 C1 S11 107.849 C4 C1 S11 106.591
C4 C9 C7 116.150 C4 C9 H10 120.621
H5 C4 H6 108.363 H5 C4 C9 111.661
H6 C4 C9 109.352 C7 C9 H10 123.143
H8 C7 C9 127.005 H8 C7 S11 118.240
C9 C7 S11 114.751
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability