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All results from a given calculation for C4H6S (Thiophene, 2,3-dihydro-)

using model chemistry: mPW1PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at mPW1PW91/6-311G*
 hartrees
Energy at 0K-554.225097
Energy at 298.15K-554.232019
Nuclear repulsion energy217.390517
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 mPW1PW91/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3250 3102 9.40      
2 A 3218 3072 3.05      
3 A 3161 3017 13.16      
4 A 3102 2960 42.65      
5 A 3084 2943 13.26      
6 A 3025 2887 43.92      
7 A 1667 1591 13.60      
8 A 1506 1437 2.02      
9 A 1488 1420 3.52      
10 A 1360 1298 0.76      
11 A 1343 1282 4.21      
12 A 1298 1239 20.22      
13 A 1221 1166 2.77      
14 A 1167 1114 0.38      
15 A 1130 1078 1.45      
16 A 1035 988 7.16      
17 A 1013 967 4.57      
18 A 938 895 3.48      
19 A 921 879 0.99      
20 A 873 833 2.57      
21 A 802 766 26.63      
22 A 702 670 13.30      
23 A 684 653 34.39      
24 A 658 628 25.58      
25 A 506 483 0.92      
26 A 412 394 2.73      
27 A 173 165 1.15      

Unscaled Zero Point Vibrational Energy (zpe) 19868.8 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 18962.8 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 mPW1PW91/6-311G*
ABC
0.23038 0.15688 0.09858

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.069 -1.256 0.212
H2 -0.060 -1.499 1.276
H3 0.132 -2.160 -0.360
C4 -1.379 -0.569 -0.177
H5 -2.214 -0.979 0.396
H6 -1.608 -0.739 -1.238
C7 0.106 1.275 0.082
H8 0.480 2.286 0.169
C9 -1.170 0.901 0.061
H10 -1.993 1.601 0.127
S11 1.271 -0.039 -0.090

Atom - Atom Distances (Å)
  C1 H2 H3 C4 H5 H6 C7 H8 C9 H10 S11
C11.09141.08861.52942.17072.17652.53983.58432.42603.44561.8355
H21.09141.77462.17202.38453.04873.02463.98062.91023.83032.4020
H31.08861.77462.20182.73352.41183.46284.49063.35274.34762.4227
C41.52942.17202.20181.09311.09842.38193.42461.50382.27622.7044
H52.17072.38452.73351.09311.76013.25044.23942.17682.60393.6428
H62.17653.04872.41181.09841.76012.95553.93562.13742.73693.1777
C72.53983.02463.46282.38193.25042.95551.08161.33012.12561.7638
H83.58433.98064.49063.42464.23943.93561.08162.15692.56662.4693
C92.42602.91023.35271.50382.17682.13741.33012.15691.08312.6200
H103.44563.83034.34762.27622.60392.73692.12562.56661.08313.6598
S111.83552.40202.42272.70443.64283.17771.76382.46932.62003.6598

picture of Thiophene, 2,3-dihydro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C4 H5 110.629 C1 C4 H6 110.772
C1 C4 C9 106.220 C1 S11 C7 89.741
H2 C1 H3 108.986 H2 C1 C4 110.838
H2 C1 S11 107.568 H3 C1 C4 113.426
H3 C1 S11 109.215 C4 C1 S11 106.617
C4 C9 C7 114.247 C4 C9 H10 122.415
H5 C4 H6 106.859 H5 C4 C9 112.947
H6 C4 C9 109.460 C7 C9 H10 123.155
H8 C7 C9 126.533 H8 C7 S11 118.429
C9 C7 S11 115.022
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.605      
2 H 0.262      
3 H 0.260      
4 C -0.447      
5 H 0.236      
6 H 0.239      
7 C -0.349      
8 H 0.244      
9 C -0.200      
10 H 0.212      
11 S 0.148      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.685 -0.366 0.226 1.739
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.502 0.539 0.055
y 0.539 -33.346 0.087
z 0.055 0.087 -40.185
Traceless
 xyz
x -1.736 0.539 0.055
y 0.539 5.998 0.087
z 0.055 0.087 -4.262
Polar
3z2-r2-8.523
x2-y2-5.156
xy0.539
xz0.055
yz0.087


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> 127.011
(<r2>)1/2 11.270