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

using model chemistry: LSDA/3-21G

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/3-21G
 hartrees
Energy at 0K-587.144560
Energy at 298.15K-587.150670
Nuclear repulsion energy269.543542
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/3-21G
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 3232 3179 3.01      
2 A 3173 3121 0.17      
3 A 3156 3104 2.50      
4 A 3071 3021 3.17      
5 A 2979 2930 12.39      
6 A 1600 1574 6.46      
7 A 1510 1485 4.75      
8 A 1484 1460 17.24      
9 A 1404 1381 11.37      
10 A 1351 1329 0.12      
11 A 1248 1227 16.59      
12 A 1185 1166 17.71      
13 A 1094 1076 2.90      
14 A 1057 1040 7.96      
15 A 990 973 2.24      
16 A 835 821 10.18      
17 A 711 699 3.65      
18 A 630 619 3.06      
19 A 549 540 0.82      
20 A 296 292 1.23      
21 A 3040 2990 4.92      
22 A 1478 1454 16.15      
23 A 1050 1033 7.04      
24 A 905 890 0.40      
25 A 823 809 7.05      
26 A 702 690 102.67      
27 A 579 569 0.16      
28 A 467 459 6.88      
29 A 227 223 4.83      
30 A 116 114 0.39      

Unscaled Zero Point Vibrational Energy (zpe) 20469.1 cm-1
Scaled (by 0.9836) Zero Point Vibrational Energy (zpe) 20133.5 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 LSDA/3-21G
ABC
0.16901 0.10286 0.06473

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.441 -1.485 0.000
C2 -1.466 -0.996 0.000
H3 -2.130 1.128 0.000
C4 -1.298 0.421 0.000
C5 0.000 0.835 0.000
H6 -0.135 -2.762 0.000
C7 -0.296 -1.687 0.000
S8 1.108 -0.582 0.000
H9 -0.285 2.935 0.000
H10 1.169 2.403 0.893
H11 1.169 2.403 -0.893
C12 0.546 2.208 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 C5 H6 C7 S8 H9 H10 H11 C12
H11.09112.63122.22223.36752.63612.15503.66224.91765.37975.37974.7495
C21.09112.22521.42652.34522.21131.35912.60684.10434.39194.39193.7830
H32.63122.22521.09202.14964.37163.36013.66152.58233.64723.64722.8853
C42.22221.42651.09201.36223.38852.33422.60632.71053.28783.28782.5677
C53.36752.34522.14961.36223.59982.53981.79882.11912.14982.14981.4775
H62.63612.21134.37163.38853.59981.08662.50995.69915.40155.40155.0167
C72.15501.35913.36012.33422.53981.08661.78684.62244.43544.43543.9853
S83.66222.60683.66152.60631.79882.50991.78683.78263.11613.11612.8460
H94.91764.10432.58232.71052.11915.69914.62243.78261.78701.78701.1038
H105.37974.39193.64723.28782.14985.40154.43543.11611.78701.78581.1060
H115.37974.39193.64723.28782.14985.40154.43543.11611.78701.78581.1060
C124.74953.78302.88532.56771.47755.01673.98532.84601.10381.10601.1060

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 123.380 H1 C2 C7 122.795
C2 C4 H3 123.606 C2 C4 C5 114.471
C2 C7 H6 129.075 C2 C7 S8 111.189
H3 C4 C5 121.922 C4 C2 C7 113.825
C4 C5 S8 110.318 C4 C5 C12 129.393
C5 S8 C7 90.196 C5 C12 H9 109.504
C5 C12 H10 111.828 C5 C12 H11 111.828
H6 C7 S8 119.736 S8 C5 C12 120.289
H9 C12 H10 107.927 H9 C12 H11 107.927
H10 C12 H11 107.670
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.215      
2 C -0.165      
3 H 0.207      
4 C -0.152      
5 C -0.359      
6 H 0.243      
7 C -0.583      
8 S 0.553      
9 H 0.240      
10 H 0.245      
11 H 0.245      
12 C -0.690      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.662 0.724 0.000 0.981
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.925 1.105 0.000
y 1.105 -36.150 0.000
z 0.000 0.000 -46.972
Traceless
 xyz
x 0.636 1.105 0.000
y 1.105 7.798 0.000
z 0.000 0.000 -8.434
Polar
3z2-r2-16.868
x2-y2-4.775
xy1.105
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.723 0.486 0.000
y 0.486 11.442 0.000
z 0.000 0.000 4.057


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