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

using model chemistry: HF/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/6-31G(2df,p)
 hartrees
Energy at 0K-590.358958
Energy at 298.15K-590.365508
Nuclear repulsion energy274.165740
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 HF/6-31G(2df,p)
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 3406 3084 3.55      
2 A 3364 3046 9.79      
3 A 3346 3030 11.54      
4 A 3253 2946 18.57      
5 A 3172 2872 34.98      
6 A 1756 1590 4.51      
7 A 1634 1479 9.81      
8 A 1610 1458 9.88      
9 A 1540 1394 2.65      
10 A 1495 1353 0.03      
11 A 1377 1247 9.35      
12 A 1253 1135 14.49      
13 A 1196 1083 0.40      
14 A 1122 1016 0.62      
15 A 1071 970 1.48      
16 A 909 823 16.19      
17 A 798 723 0.69      
18 A 709 642 4.65      
19 A 586 531 0.90      
20 A 323 292 0.92      
21 A 3229 2924 20.76      
22 A 1598 1447 6.26      
23 A 1159 1049 0.47      
24 A 1040 942 0.23      
25 A 947 857 9.10      
26 A 803 727 61.88      
27 A 617 559 0.02      
28 A 517 468 3.34      
29 A 253 229 2.76      
30 A 121 110 0.17      

Unscaled Zero Point Vibrational Energy (zpe) 22101.0 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 20012.5 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 HF/6-31G(2df,p)
ABC
0.17920 0.10413 0.06667

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.374 -1.532 0.000
C2 -1.425 -1.031 0.000
H3 -2.113 1.078 0.000
C4 -1.280 0.398 0.000
C5 0.000 0.807 0.000
H6 -0.063 -2.722 0.000
C7 -0.245 -1.667 0.000
S8 1.070 -0.554 0.000
H9 -0.301 2.913 0.000
H10 1.136 2.408 0.877
H11 1.136 2.408 -0.877
C12 0.526 2.212 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 C5 H6 C7 S8 H9 H10 H11 C12
H11.07372.62302.21853.33262.59882.13303.58044.90555.34865.34864.7357
C21.07372.21751.43582.32482.17121.34042.54014.10104.37544.37543.7838
H32.62302.21751.07442.12984.31683.31973.57672.57953.61773.61772.8718
C42.21851.43581.07441.34403.34882.31012.53622.69963.26253.26252.5597
C53.33262.32482.12981.34403.52902.48591.73122.12822.14972.14971.5004
H62.59882.17124.31683.34883.52901.07022.44625.64035.34015.34014.9687
C72.13301.34043.31972.31012.48591.07021.72324.58104.39074.39073.9549
S83.58042.54013.57672.53621.73122.44621.72323.72873.08943.08942.8191
H94.90554.10102.57952.69962.12825.64034.58103.72871.75711.75711.0840
H105.34864.37543.61773.26252.14975.34014.39073.08941.75711.75351.0858
H115.34864.37543.61773.26252.14975.34014.39073.08941.75711.75351.0858
C124.73573.78382.87182.55971.50044.96873.95492.81911.08401.08581.0858

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 123.634 H1 C2 C7 123.777
C2 C4 H3 123.468 C2 C4 C5 113.468
C2 C7 H6 128.145 C2 C7 S8 111.407
H3 C4 C5 123.063 C4 C2 C7 112.589
C4 C5 S8 110.489 C4 C5 C12 128.210
C5 S8 C7 92.046 C5 C12 H9 109.823
C5 C12 H10 111.447 C5 C12 H11 111.447
H6 C7 S8 120.447 S8 C5 C12 121.301
H9 C12 H10 108.149 H9 C12 H11 108.149
H10 C12 H11 107.699
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.153      
2 C -0.123      
3 H 0.146      
4 C -0.208      
5 C 0.073      
6 H 0.175      
7 C -0.228      
8 S 0.013      
9 H 0.154      
10 H 0.157      
11 H 0.157      
12 C -0.469      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.798 0.496 0.000 0.940
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.440 0.913 0.000
y 0.913 -37.117 0.000
z 0.000 0.000 -46.232
Traceless
 xyz
x 0.235 0.913 0.000
y 0.913 6.719 0.000
z 0.000 0.000 -6.954
Polar
3z2-r2-13.907
x2-y2-4.323
xy0.913
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.166 0.340 0.000
y 0.340 11.133 0.000
z 0.000 0.000 5.599


<r2> (average value of r2) Å2
<r2> 175.819
(<r2>)1/2 13.260