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

using model chemistry: MP2/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/6-311G**
 hartrees
Energy at 0K-591.236914
Energy at 298.15K-591.242952
HF Energy-590.392026
Nuclear repulsion energy272.731094
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 MP2/6-311G**
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 3280 3116 1.19      
2 A 3249 3087 3.93      
3 A 3232 3071 6.12      
4 A 3169 3012 10.83      
5 A 3072 2919 27.71      
6 A 1570 1492 0.88      
7 A 1515 1440 5.63      
8 A 1477 1403 8.10      
9 A 1429 1358 0.24      
10 A 1394 1325 0.97      
11 A 1264 1201 12.94      
12 A 1214 1153 11.86      
13 A 1102 1047 3.60      
14 A 1076 1023 2.95      
15 A 1001 951 1.84      
16 A 885 841 14.43      
17 A 768 730 0.07      
18 A 693 659 1.37      
19 A 558 530 1.00      
20 A 305 290 0.67      
21 A 3150 2993 13.18      
22 A 1494 1419 8.10      
23 A 1063 1010 0.04      
24 A 833 792 0.11      
25 A 785 746 17.96      
26 A 669 636 72.94      
27 A 523 497 2.00      
28 A 452 429 5.93      
29 A 220 209 3.25      
30 A 71 68 0.21      

Unscaled Zero Point Vibrational Energy (zpe) 20755.5 cm-1
Scaled (by 0.9502) Zero Point Vibrational Energy (zpe) 19721.9 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 MP2/6-311G**
ABC
0.17567 0.10389 0.06609

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.372 -1.584 0.000
C2 -1.431 -1.046 0.000
H3 -2.151 1.056 0.000
C4 -1.311 0.370 0.000
C5 0.000 0.806 0.000
H6 0.009 -2.733 0.000
C7 -0.203 -1.673 0.000
S8 1.083 -0.536 0.000
H9 -0.353 2.905 0.000
H10 1.105 2.437 0.886
H11 1.105 2.437 -0.886
C12 0.500 2.221 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 C5 H6 C7 S8 H9 H10 H11 C12
H11.08402.64972.22363.36782.64432.17113.61084.92215.38945.38944.7677
C21.08402.22241.42112.34102.21831.37862.56554.09544.39874.39873.7955
H32.64972.22241.08512.16564.36213.35293.60502.57853.64613.64612.8956
C42.22361.42111.08511.38163.37212.32352.55962.70993.30073.30072.5898
C53.36782.34102.16561.38163.53962.48721.72502.12812.15972.15971.5008
H62.64432.21834.36213.37213.53961.08172.44555.64985.35865.35864.9789
C72.17111.37863.35292.32352.48721.08171.71634.58004.40264.40263.9570
S83.61082.56553.60502.55961.72502.44551.71633.72893.10223.10222.8187
H94.92214.09542.57852.70992.12815.64984.58003.72891.76971.76971.0932
H105.38944.39873.64613.30072.15975.35864.40263.10221.76971.77171.0944
H115.38944.39873.64613.30072.15975.35864.40263.10221.76971.77171.0944
C124.76773.79552.89562.58981.50084.97893.95702.81871.09321.09441.0944

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 124.606 H1 C2 C7 123.227
C2 C4 H3 124.395 C2 C4 C5 113.276
C2 C7 H6 128.344 C2 C7 S8 111.513
H3 C4 C5 122.329 C4 C2 C7 112.167
C4 C5 S8 110.477 C4 C5 C12 127.869
C5 S8 C7 92.566 C5 C12 H9 109.247
C5 C12 H10 111.697 C5 C12 H11 111.697
H6 C7 S8 120.142 S8 C5 C12 121.655
H9 C12 H10 107.991 H9 C12 H11 107.991
H10 C12 H11 108.080
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability