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

using model chemistry: BLYP/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 BLYP/3-21G
 hartrees
Energy at 0K-589.168856
Energy at 298.15K-589.174815
Nuclear repulsion energy265.325754
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 BLYP/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 3214 3197 0.77      
2 A 3151 3134 5.46      
3 A 3135 3118 7.08      
4 A 3039 3023 10.99      
5 A 2968 2952 25.10      
6 A 1562 1554 2.49      
7 A 1517 1509 4.14      
8 A 1456 1448 12.35      
9 A 1425 1417 3.91      
10 A 1339 1332 0.71      
11 A 1256 1249 15.46      
12 A 1135 1128 11.78      
13 A 1098 1092 4.47      
14 A 1039 1034 2.43      
15 A 979 974 2.81      
16 A 813 808 8.98      
17 A 657 653 4.89      
18 A 582 579 4.30      
19 A 523 520 1.17      
20 A 290 289 1.20      
21 A 3009 2993 16.13      
22 A 1511 1502 9.22      
23 A 1065 1059 3.08      
24 A 893 888 0.36      
25 A 820 815 8.88      
26 A 690 686 81.01      
27 A 559 556 0.64      
28 A 442 440 5.38      
29 A 217 216 3.72      
30 A 115 114 0.30      

Unscaled Zero Point Vibrational Energy (zpe) 20249.9 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 20138.5 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 BLYP/3-21G
ABC
0.16344 0.09930 0.06251

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.477 -1.466 0.000
C2 -1.494 -0.997 0.000
H3 -2.139 1.144 0.000
C4 -1.308 0.439 0.000
C5 0.000 0.853 0.000
H6 -0.181 -2.788 0.000
C7 -0.329 -1.714 0.000
S8 1.128 -0.608 0.000
H9 -0.256 2.981 0.000
H10 1.192 2.434 0.893
H11 1.192 2.434 -0.893
C12 0.568 2.250 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 C5 H6 C7 S8 H9 H10 H11 C12
H11.08902.63162.23543.39332.64982.16223.70584.97065.42855.42854.8045
C21.08902.23591.44832.37822.22131.36832.65094.16614.44804.44803.8467
H32.63162.23591.08962.15894.39293.38333.70732.63063.68203.68202.9249
C42.23541.44831.08961.37193.41882.36592.65162.75063.32043.32042.6076
C53.39332.37822.15891.37193.64602.58871.84602.14312.17182.17181.5080
H62.64982.22134.39293.41883.64601.08402.54295.76985.47315.47315.0937
C72.16221.36833.38332.36592.58871.08401.82974.69604.50804.50804.0648
S83.70582.65093.70732.65161.84602.54291.82973.84673.17113.17112.9123
H94.97064.16612.63062.75062.14315.76984.69603.84671.78681.78681.1022
H105.42854.44803.68203.32042.17185.47314.50803.17111.78681.78501.1041
H115.42854.44803.68203.32042.17185.47314.50803.17111.78681.78501.1041
C124.80453.84672.92492.60761.50805.09374.06482.91231.10221.10411.1041

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 122.898 H1 C2 C7 122.861
C2 C4 H3 122.896 C2 C4 C5 114.945
C2 C7 H6 129.497 C2 C7 S8 111.160
H3 C4 C5 122.159 C4 C2 C7 114.241
C4 C5 S8 110.108 C4 C5 C12 129.702
C5 S8 C7 89.546 C5 C12 H9 109.402
C5 C12 H10 111.554 C5 C12 H11 111.554
H6 C7 S8 119.343 S8 C5 C12 120.189
H9 C12 H10 108.170 H9 C12 H11 108.170
H10 C12 H11 107.869
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.172      
2 C -0.125      
3 H 0.166      
4 C -0.130      
5 C -0.294      
6 H 0.201      
7 C -0.498      
8 S 0.470      
9 H 0.201      
10 H 0.205      
11 H 0.205      
12 C -0.575      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.742 0.698 0.000 1.019
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.362 1.159 0.000
y 1.159 -36.795 0.000
z 0.000 0.000 -46.973
Traceless
 xyz
x 0.522 1.159 0.000
y 1.159 7.372 0.000
z 0.000 0.000 -7.894
Polar
3z2-r2-15.789
x2-y2-4.567
xy1.159
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 185.290
(<r2>)1/2 13.612