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

using model chemistry: MP2/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/cc-pVDZ
 hartrees
Energy at 0K-591.169283
Energy at 298.15K-591.175385
HF Energy-590.359385
Nuclear repulsion energy271.065455
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/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 A 3289 3133 1.21      
2 A 3260 3105 3.16      
3 A 3243 3089 5.61      
4 A 3187 3035 8.69      
5 A 3079 2933 28.72      
6 A 1577 1502 0.91      
7 A 1492 1421 1.31      
8 A 1490 1419 11.15      
9 A 1409 1343 0.32      
10 A 1388 1322 1.17      
11 A 1252 1192 13.00      
12 A 1212 1155 10.33      
13 A 1088 1037 3.28      
14 A 1069 1018 3.15      
15 A 991 944 1.67      
16 A 874 833 11.93      
17 A 761 725 0.02      
18 A 685 653 1.56      
19 A 551 525 0.82      
20 A 301 287 0.66      
21 A 3167 3017 11.32      
22 A 1475 1405 7.73      
23 A 1051 1001 0.33      
24 A 871 830 0.17      
25 A 812 773 13.44      
26 A 694 661 59.29      
27 A 556 529 0.27      
28 A 463 441 6.07      
29 A 227 216 2.71      
30 A 82 78 0.21      

Unscaled Zero Point Vibrational Energy (zpe) 20796.9 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 19809.0 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/cc-pVDZ
ABC
0.17341 0.10278 0.06533

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.394 -1.584 0.000
C2 -1.443 -1.046 0.000
H3 -2.164 1.069 0.000
C4 -1.318 0.376 0.000
C5 0.000 0.814 0.000
H6 -0.004 -2.754 0.000
C7 -0.211 -1.682 0.000
S8 1.089 -0.543 0.000
H9 -0.341 2.926 0.000
H10 1.126 2.442 0.891
H11 1.126 2.442 -0.891
C12 0.512 2.229 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 C5 H6 C7 S8 H9 H10 H11 C12
H11.09302.66342.23613.38892.66052.18483.63494.95565.42135.42134.7939
C21.09302.23481.42732.35422.23281.38612.58084.12204.42204.42203.8136
H32.66342.23481.09392.17924.39083.37413.63032.60233.67443.67442.9163
C42.23611.42731.09391.38913.39412.33692.57602.73093.32163.32162.6040
C53.38892.35422.17921.38913.56802.50561.73982.13922.17022.17021.5041
H62.66052.23284.39083.39413.56801.09112.46615.68985.39095.39095.0090
C72.18481.38613.37412.33692.50561.09111.72874.61034.42604.42603.9774
S83.63492.58083.63032.57601.73982.46611.72873.75213.11503.11502.8310
H94.95564.12202.60232.73092.13925.68984.61033.75211.78351.78351.1017
H105.42134.42203.67443.32162.17025.39094.42603.11501.78351.78281.1031
H115.42134.42203.67443.32162.17025.39094.42603.11501.78351.78281.1031
C124.79393.81362.91632.60401.50415.00903.97742.83101.10171.10311.1031

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 124.515 H1 C2 C7 123.164
C2 C4 H3 124.316 C2 C4 C5 113.408
C2 C7 H6 128.272 C2 C7 S8 111.431
H3 C4 C5 122.275 C4 C2 C7 112.321
C4 C5 S8 110.334 C4 C5 C12 128.284
C5 S8 C7 92.506 C5 C12 H9 109.387
C5 C12 H10 111.767 C5 C12 H11 111.767
H6 C7 S8 120.297 S8 C5 C12 121.382
H9 C12 H10 107.978 H9 C12 H11 107.978
H10 C12 H11 107.817
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability