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

using model chemistry: LSDA/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 LSDA/6-31G*
 hartrees
Energy at 0K-590.163903
Energy at 298.15K-590.169928
Nuclear repulsion energy273.411723
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 LSDA/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 3207 3147 0.95      
2 A 3165 3106 2.38      
3 A 3147 3088 4.81      
4 A 3081 3023 5.45      
5 A 2984 2928 22.31      
6 A 1594 1564 4.90      
7 A 1512 1484 5.66      
8 A 1454 1426 8.67      
9 A 1381 1355 1.25      
10 A 1366 1340 1.07      
11 A 1220 1197 10.83      
12 A 1196 1173 12.09      
13 A 1072 1052 4.57      
14 A 1049 1030 4.02      
15 A 967 949 2.42      
16 A 858 842 11.59      
17 A 747 733 0.03      
18 A 677 664 1.31      
19 A 549 538 0.80      
20 A 294 288 0.79      
21 A 3048 2991 6.93      
22 A 1437 1410 11.94      
23 A 1021 1002 3.01      
24 A 867 851 0.39      
25 A 791 777 10.85      
26 A 671 659 62.14      
27 A 568 557 0.91      
28 A 470 461 5.33      
29 A 229 224 2.89      
30 A 96 94 0.19      

Unscaled Zero Point Vibrational Energy (zpe) 20356.5 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 19975.9 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 LSDA/6-31G*
ABC
0.17693 0.10460 0.06656

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.383 -1.563 0.000
C2 -1.426 -1.034 0.000
H3 -2.146 1.071 0.000
C4 -1.299 0.376 0.000
C5 0.000 0.812 0.000
H6 -0.009 -2.741 0.000
C7 -0.217 -1.670 0.000
S8 1.078 -0.540 0.000
H9 -0.341 2.907 0.000
H10 1.124 2.426 0.889
H11 1.124 2.426 -0.889
C12 0.507 2.203 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 C5 H6 C7 S8 H9 H10 H11 C12
H11.09362.64462.22153.36482.64982.16923.60914.91475.38585.38584.7472
C21.09362.22381.41532.33272.21851.36692.55244.08754.38924.38923.7699
H32.64462.22381.09482.16124.36913.35133.60362.57463.64953.64952.8840
C42.22151.41531.09481.37073.37302.31462.54782.70663.29663.29662.5691
C53.36482.33272.16121.37073.55272.49131.72942.12282.15852.15851.4803
H62.64982.21854.36913.37303.55271.09072.45425.65775.36385.36384.9704
C72.16921.36693.35132.31462.49131.09071.71794.57884.40054.40053.9397
S83.60912.55243.60362.54781.72942.45421.71793.72843.09713.09712.8021
H94.91474.08752.57462.70662.12285.65774.57883.72841.78041.78041.1026
H105.38584.38923.64953.29662.15855.36384.40053.09711.78041.77771.1050
H115.38584.38923.64953.29662.15855.36384.40053.09711.78041.77771.1050
C124.74723.76992.88402.56911.48034.97043.93972.80211.10261.10501.1050

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 124.114 H1 C2 C7 123.295
C2 C4 H3 124.238 C2 C4 C5 113.700
C2 C7 H6 128.694 C2 C7 S8 111.159
H3 C4 C5 122.062 C4 C2 C7 112.591
C4 C5 S8 110.000 C4 C5 C12 128.575
C5 S8 C7 92.550 C5 C12 H9 109.684
C5 C12 H10 112.401 C5 C12 H11 112.401
H6 C7 S8 120.147 S8 C5 C12 121.425
H9 C12 H10 107.505 H9 C12 H11 107.505
H10 C12 H11 107.103
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.161      
2 C -0.120      
3 H 0.154      
4 C -0.135      
5 C -0.105      
6 H 0.193      
7 C -0.384      
8 S 0.249      
9 H 0.197      
10 H 0.202      
11 H 0.202      
12 C -0.613      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.418 0.553 0.000 0.693
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.680 0.738 0.000
y 0.738 -36.544 0.000
z 0.000 0.000 -45.559
Traceless
 xyz
x 0.372 0.738 0.000
y 0.738 6.575 0.000
z 0.000 0.000 -6.947
Polar
3z2-r2-13.893
x2-y2-4.136
xy0.738
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.229 0.486 0.000
y 0.486 12.016 0.000
z 0.000 0.000 5.017


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000