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All results from a given calculation for C5H6S (Thiophene, 2-methyl-)

using model chemistry: B3LYP/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/aug-cc-pVTZ
 hartrees
Energy at 0K-592.432460
Energy at 298.15K-592.438631
HF Energy-592.432460
Nuclear repulsion energy272.806712
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 B3LYP/aug-cc-pVTZ
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' 3248 3142 0.61      
2 A' 3205 3101 5.64      
3 A' 3188 3084 6.77      
4 A' 3101 3001 11.95      
5 A' 3026 2928 32.19      
6 A' 1586 1534 1.81      
7 A' 1497 1448 2.54      
8 A' 1482 1434 15.90      
9 A' 1420 1374 0.05      
10 A' 1382 1337 1.09      
11 A' 1265 1224 9.58      
12 A' 1172 1134 9.18      
13 A' 1102 1066 1.53      
14 A' 1064 1030 3.58      
15 A' 994 961 2.00      
16 A' 853 825 12.07      
17 A' 745 721 0.72      
18 A' 663 641 1.75      
19 A' 552 534 0.52      
20 A' 303 293 0.82      
21 A" 3071 2971 12.42      
22 A" 1481 1433 7.98      
23 A" 1064 1030 0.36      
24 A" 921 891 0.11      
25 A" 841 814 14.00      
26 A" 707 684 71.07      
27 A" 579 560 0.09      
28 A" 480 464 5.48      
29 A" 233 226 2.93      
30 A" 88 85 0.13      

Unscaled Zero Point Vibrational Energy (zpe) 20656.8 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 19985.5 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 B3LYP/aug-cc-pVTZ
ABC
0.17642 0.10363 0.06608

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.384 -1.542 0.000
C2 -1.433 -1.030 0.000
H3 -2.132 1.071 0.000
C4 -1.295 0.388 0.000
C5 0.000 0.815 0.000
H6 -0.044 -2.735 0.000
C7 -0.237 -1.676 0.000
S8 1.081 -0.553 0.000
H9 -0.316 2.918 0.000
H10 1.130 2.424 0.880
H11 1.130 2.424 -0.880
C12 0.519 2.217 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 C5 H6 C7 S8 H9 H10 H11 C12
H11.07972.62492.21553.35192.62652.15123.60274.91555.37135.37134.7485
C21.07972.21451.42452.33602.19891.35932.55834.10284.39054.39053.7881
H32.62492.21451.08072.14724.34103.33723.59942.58993.63953.63952.8873
C42.21551.42451.08071.36343.36372.31892.55462.71283.28673.28672.5755
C53.35192.33602.14721.36343.54992.50191.74282.12632.15452.15451.4947
H62.62652.19894.34103.36373.54991.07642.45495.65895.36375.36374.9833
C72.15121.35933.33722.31892.50191.07641.73114.59414.41064.41063.9651
S83.60272.55833.59942.55461.74282.45491.73113.74063.10463.10462.8257
H94.91554.10282.58992.71282.12635.65894.59413.74061.76311.76311.0896
H105.37134.39053.63953.28672.15455.36374.41063.10461.76311.76011.0916
H115.37134.39053.63953.28672.15455.36374.41063.10461.76311.76011.0916
C124.74853.78812.88732.57551.49474.98333.96512.82571.08961.09161.0916

picture of Thiophene, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C4 123.844 H1 C2 C7 123.362
C2 C4 H3 123.667 C2 C4 C5 113.825
C2 C7 H6 128.677 C2 C7 S8 111.187
H3 C4 C5 122.508 C4 C2 C7 112.795
C4 C5 S8 110.055 C4 C5 C12 128.559
C5 S8 C7 92.138 C5 C12 H9 109.738
C5 C12 H10 111.883 C5 C12 H11 111.883
H6 C7 S8 120.137 S8 C5 C12 121.386
H9 C12 H10 107.858 H9 C12 H11 107.858
H10 C12 H11 107.446
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability