return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: MP3=FULL/6-31+G**

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=FULL/6-31+G**
 hartrees
Energy at 0K-591.229770
Energy at 298.15K-591.235900
HF Energy-590.344760
Nuclear repulsion energy272.655015
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=FULL/6-31+G**
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' 3356 3126 1.39      
2 A' 3320 3093 5.61      
3 A' 3302 3076 7.56      
4 A' 3223 3002 14.06      
5 A' 3130 2916 30.40      
6 A' 1655 1542 1.37      
7 A' 1557 1451 5.17      
8 A' 1549 1443 17.95      
9 A' 1477 1376 0.69      
10 A' 1434 1336 0.76      
11 A' 1311 1221 12.46      
12 A' 1226 1142 14.33      
13 A' 1144 1065 2.05      
14 A' 1092 1018 1.80      
15 A' 1026 956 1.80      
16 A' 887 826 15.40      
17 A' 770 717 0.41      
18 A' 690 643 3.18      
19 A' 567 528 0.69      
20 A' 311 290 0.71      
21 A" 3202 2983 13.69      
22 A" 1526 1422 8.01      
23 A" 1086 1012 0.01      
24 A" 873 813 0.24      
25 A" 822 766 17.61      
26 A" 707 659 85.16      
27 A" 534 497 1.01      
28 A" 454 423 5.04      
29 A" 218 203 3.51      
30 A" 84 79 0.28      

Unscaled Zero Point Vibrational Energy (zpe) 21265.7 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 19811.1 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=FULL/6-31+G**
ABC
0.17539 0.10385 0.06603

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.394 -1.543 0.000
C2 -1.444 -1.033 0.000
H3 -2.138 1.081 0.000
C4 -1.303 0.397 0.000
C5 0.000 0.808 0.000
H6 -0.048 -2.727 0.000
C7 -0.237 -1.669 0.000
S8 1.087 -0.553 0.000
H9 -0.312 2.908 0.000
H10 1.132 2.413 0.881
H11 1.132 2.413 -0.881
C12 0.524 2.213 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 C5 H6 C7 S8 H9 H10 H11 C12
H11.07822.63652.22613.35492.62722.15973.61864.91425.37135.37134.7556
C21.07822.22481.43722.33922.19511.36362.57584.10054.39094.39093.7953
H32.63652.22481.07922.15534.34393.34253.61512.58333.63863.63862.8921
C42.22611.43721.07921.36583.36722.32462.57172.69943.28083.28082.5751
C53.35492.33922.15531.36583.53542.48781.74142.12382.15232.15231.4994
H62.62722.19514.34393.36723.53541.07542.45315.64205.34675.34674.9731
C72.15971.36363.34252.32462.48781.07541.73194.57774.39404.39403.9554
S83.61862.57583.61512.57171.74142.45311.73193.73323.09383.09382.8224
H94.91424.10052.58332.69942.12385.64204.57773.73321.76241.76241.0873
H105.37134.39093.63863.28082.15235.34674.39403.09381.76241.76151.0888
H115.37134.39093.63863.28082.15235.34674.39403.09381.76241.76151.0888
C124.75563.79532.89212.57511.49944.97313.95542.82241.08731.08881.0888

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 123.876 H1 C2 C7 123.956
C2 C4 H3 123.669 C2 C4 C5 113.110
C2 C7 H6 127.927 C2 C7 S8 112.087
H3 C4 C5 123.221 C4 C2 C7 112.168
C4 C5 S8 111.141 C4 C5 C12 127.918
C5 S8 C7 91.495 C5 C12 H9 109.342
C5 C12 H10 111.533 C5 C12 H11 111.533
H6 C7 S8 119.986 S8 C5 C12 120.941
H9 C12 H10 108.169 H9 C12 H11 108.169
H10 C12 H11 107.977
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability