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

using model chemistry: BLYP/STO-3G

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/STO-3G
 hartrees
Energy at 0K-585.413839
Energy at 298.15K-585.419562
Nuclear repulsion energy266.710429
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/STO-3G
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 3396 3142 5.43      
2 A 3375 3123 5.88      
3 A 3365 3113 0.63      
4 A 3362 3110 1.26      
5 A 3189 2951 6.00      
6 A 1655 1531 2.39      
7 A 1625 1504 2.34      
8 A 1532 1417 11.62      
9 A 1523 1410 3.09      
10 A 1447 1339 0.40      
11 A 1304 1206 7.66      
12 A 1227 1136 8.20      
13 A 1141 1056 0.35      
14 A 1087 1006 1.05      
15 A 1037 959 1.42      
16 A 899 832 4.24      
17 A 776 718 0.14      
18 A 704 651 0.34      
19 A 561 519 0.80      
20 A 299 277 0.45      
21 A 3326 3077 2.56      
22 A 1626 1504 4.71      
23 A 1109 1026 2.38      
24 A 912 843 0.13      
25 A 843 780 3.56      
26 A 719 665 23.63      
27 A 572 529 0.17      
28 A 458 424 3.01      
29 A 227 210 0.76      
30 A 98 91 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 21696.0 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 20073.2 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/STO-3G
ABC
0.16666 0.09978 0.06317

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.452 -1.556 0.000
C2 -1.476 -1.042 0.000
H3 -2.182 1.109 0.000
C4 -1.329 0.409 0.000
C5 0.000 0.821 0.000
H6 -0.074 -2.784 0.000
C7 -0.255 -1.698 0.000
S8 1.111 -0.574 0.000
H9 -0.303 2.978 0.000
H10 1.168 2.465 0.897
H11 1.168 2.465 -0.897
C12 0.542 2.262 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 C5 H6 C7 S8 H9 H10 H11 C12
H11.10352.67862.26353.41582.67662.20233.69665.01825.48475.48474.8524
C21.10352.26371.45832.37732.23581.38602.62924.18814.48284.48283.8716
H32.67862.26371.10352.20094.42653.40423.69822.65063.72373.72372.9584
C42.26351.45831.10351.39163.43022.36432.63062.76683.35673.35672.6336
C53.41582.37732.20091.39163.60582.53171.78382.17822.20682.20681.5390
H62.67662.23584.42653.43023.60581.10112.50735.76665.46765.46765.0828
C72.20231.38603.40422.36432.53171.10111.76854.67614.48944.48944.0386
S83.69662.62923.69822.63061.78382.50731.76853.82373.16923.16922.8922
H95.01824.18812.65062.76682.17825.76664.67613.82371.79801.79801.1086
H105.48474.48283.72373.35672.20685.46764.48943.16921.79801.79411.1123
H115.48474.48283.72373.35672.20685.46764.48943.16921.79801.79411.1123
C124.85243.87162.95842.63361.53905.08284.03862.89221.10861.11231.1123

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 123.553 H1 C2 C7 124.019
C2 C4 H3 123.583 C2 C4 C5 113.041
C2 C7 H6 127.667 C2 C7 S8 112.348
H3 C4 C5 123.376 C4 C2 C7 112.428
C4 C5 S8 111.277 C4 C5 C12 127.889
C5 S8 C7 90.906 C5 C12 H9 109.644
C5 C12 H10 111.668 C5 C12 H11 111.668
H6 C7 S8 119.985 S8 C5 C12 120.834
H9 C12 H10 108.107 H9 C12 H11 108.107
H10 C12 H11 107.508
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.073      
2 C -0.105      
3 H 0.070      
4 C -0.109      
5 C -0.108      
6 H 0.078      
7 C -0.195      
8 S 0.273      
9 H 0.084      
10 H 0.079      
11 H 0.079      
12 C -0.220      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.705 0.263 0.000 0.753
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.270 -0.119 0.000
y -0.119 -36.262 0.000
z 0.000 0.000 -40.761
Traceless
 xyz
x 0.241 -0.119 0.000
y -0.119 3.254 0.000
z 0.000 0.000 -3.494
Polar
3z2-r2-6.989
x2-y2-2.009
xy-0.119
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.715 0.427 0.000
y 0.427 7.660 0.000
z 0.000 0.000 1.732


<r2> (average value of r2) Å2
<r2> 182.034
(<r2>)1/2 13.492