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

using model chemistry: MP3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP3/6-31G*
 hartrees
Energy at 0K-591.129989
Energy at 298.15K-591.136151
HF Energy-590.328031
Nuclear repulsion energy272.272022
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 MP3/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3317 3113 1.46      
2 A 3277 3076 5.26      
3 A 3260 3059 7.28      
4 A 3190 2994 11.62      
5 A 3103 2912 22.99      
6 A 1666 1563 2.22      
7 A 1565 1469 4.40      
8 A 1554 1459 14.66      
9 A 1479 1388 0.66      
10 A 1433 1345 0.08      
11 A 1308 1228 14.18      
12 A 1227 1152 15.10      
13 A 1146 1076 1.46      
14 A 1095 1028 1.94      
15 A 1028 965 1.14      
16 A 886 832 14.14      
17 A 769 722 0.40      
18 A 688 646 3.55      
19 A 567 532 0.90      
20 A 310 291 0.78      
21 A 3170 2976 13.52      
22 A 1539 1444 8.41      
23 A 1094 1027 0.37      
24 A 862 809 0.00      
25 A 818 768 12.82      
26 A 708 664 68.57      
27 A 548 515 0.83      
28 A 471 442 3.97      
29 A 231 217 2.90      
30 A 97 91 0.15      

Unscaled Zero Point Vibrational Energy (zpe) 21201.7 cm-1
Scaled (by 0.9386) Zero Point Vibrational Energy (zpe) 19899.9 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 MP3/6-31G*
ABC
0.17501 0.10359 0.06587

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.392 -1.551 0.000
C2 -1.438 -1.035 0.000
H3 -2.139 1.081 0.000
C4 -1.300 0.393 0.000
C5 0.000 0.810 0.000
H6 -0.043 -2.737 0.000
C7 -0.235 -1.673 0.000
S8 1.085 -0.552 0.000
H9 -0.323 2.916 0.000
H10 1.130 2.423 0.885
H11 1.130 2.423 -0.885
C12 0.519 2.218 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 C5 H6 C7 S8 H9 H10 H11 C12
H11.08412.64472.23003.36082.63112.15993.61724.92285.38355.38354.7622
C21.08412.22871.43452.33912.20131.36222.56924.10494.39744.39743.7962
H32.64472.22871.08512.15584.35563.34803.61392.58133.64263.64262.8906
C42.23001.43451.08511.36493.37302.32422.56522.70523.28763.28762.5764
C53.36082.33912.15581.36493.54702.49391.74152.13032.15942.15941.5006
H62.63112.20134.35563.37303.54701.08122.45845.65955.36515.36514.9865
C72.15991.36223.34802.32422.49391.08121.73164.58944.40744.40743.9632
S83.61722.56923.61392.56521.74152.45841.73163.74273.10463.10462.8274
H94.92284.10492.58132.70522.13035.65954.58943.74271.77081.77081.0933
H105.38354.39743.64263.28762.15945.36514.40743.10461.77081.76981.0947
H115.38354.39743.64263.28762.15945.36514.40743.10461.77081.76981.0947
C124.76223.79622.89062.57641.50064.98653.96322.82741.09331.09471.0947

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 124.016 H1 C2 C7 123.597
C2 C4 H3 123.805 C2 C4 C5 113.333
C2 C7 H6 128.192 C2 C7 S8 111.732
H3 C4 C5 122.862 C4 C2 C7 112.387
C4 C5 S8 110.758 C4 C5 C12 128.019
C5 S8 C7 91.790 C5 C12 H9 109.420
C5 C12 H10 111.657 C5 C12 H11 111.657
H6 C7 S8 120.076 S8 C5 C12 121.223
H9 C12 H10 108.057 H9 C12 H11 108.057
H10 C12 H11 107.859
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability