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

using model chemistry: HF/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/6-31G
 hartrees
Energy at 0K-552.357108
Energy at 298.15K-552.364215
Nuclear repulsion energy214.076572
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 HF/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 3447 3112 8.26      
2 A 3379 3051 5.97      
3 A 3345 3020 10.36      
4 A 3277 2959 35.32      
5 A 3232 2918 19.76      
6 A 3186 2877 40.05      
7 A 1828 1650 5.92      
8 A 1653 1493 1.33      
9 A 1637 1478 3.83      
10 A 1488 1344 2.44      
11 A 1465 1323 8.75      
12 A 1420 1283 19.10      
13 A 1348 1217 2.49      
14 A 1277 1153 1.11      
15 A 1249 1127 0.24      
16 A 1135 1025 2.81      
17 A 1099 992 4.31      
18 A 1087 981 5.91      
19 A 977 882 3.83      
20 A 927 837 1.12      
21 A 850 768 24.20      
22 A 794 716 64.77      
23 A 732 661 14.34      
24 A 676 610 3.22      
25 A 542 489 0.61      
26 A 443 400 2.21      
27 A 124 112 1.90      

Unscaled Zero Point Vibrational Energy (zpe) 21307.0 cm-1
Scaled (by 0.9029) Zero Point Vibrational Energy (zpe) 19238.1 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 HF/6-31G
ABC
0.22299 0.15161 0.09434

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.084 -1.301 0.161
H2 -0.037 -1.643 1.182
H3 0.099 -2.126 -0.506
C4 -1.408 -0.570 -0.134
H5 -2.189 -0.932 0.526
H6 -1.736 -0.771 -1.150
C7 0.082 1.311 0.067
H8 0.436 2.316 0.146
C9 -1.175 0.913 0.039
H10 -2.002 1.595 0.098
S11 1.309 -0.035 -0.068

Atom - Atom Distances (Å)
  C1 H2 H3 C4 H5 H6 C7 H8 C9 H10 S11
C11.07811.07681.54082.16772.17432.61933.65442.47133.47361.8967
H21.07811.76122.18272.35963.01453.16024.11993.02293.93972.4416
H31.07681.76122.19832.77992.37033.48504.50263.34054.31562.4556
C41.54082.18272.19831.08421.08682.40843.43671.51132.25662.7704
H52.16772.35962.77991.08421.74413.22454.19322.16052.56933.6596
H62.17433.01452.37031.08681.74413.02043.99132.13672.68823.3144
C72.61933.16023.48502.40843.22453.02041.06841.31892.10301.8264
H83.65444.11994.50263.43674.19323.99131.06842.13932.54282.5168
C92.47133.02293.34051.51132.16052.13671.31892.13931.07292.6611
H103.47363.93974.31562.25662.56932.68822.10302.54281.07293.6937
S111.89672.44162.45562.77043.65963.31441.82642.51682.66113.6937

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 110.120 C1 C4 H6 110.492
C1 C4 C9 108.131 C1 S11 C7 89.400
H2 C1 H3 109.629 H2 C1 C4 111.694
H2 C1 S11 107.087 H3 C1 C4 113.052
H3 C1 S11 108.163 C4 C1 S11 106.946
C4 C9 C7 116.469 C4 C9 H10 120.730
H5 C4 H6 106.900 H5 C4 C9 111.639
H6 C4 C9 109.571 C7 C9 H10 122.764
H8 C7 C9 126.983 H8 C7 S11 118.409
C9 C7 S11 114.603
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.552 0.077    
2 H 0.208 0.028    
3 H 0.205 0.037    
4 C -0.338 0.243    
5 H 0.181 -0.039    
6 H 0.186 -0.031    
7 C -0.497 -0.157    
8 H 0.218 0.196    
9 C -0.102 -0.204    
10 H 0.200 0.112    
11 S 0.290 -0.262    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.375 -0.293 0.242 2.405
CHELPG -2.217 -0.257 0.235 2.245
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.856 0.504 0.155
y 0.504 -33.496 0.137
z 0.155 0.137 -40.683
Traceless
 xyz
x -2.766 0.504 0.155
y 0.504 6.773 0.137
z 0.155 0.137 -4.007
Polar
3z2-r2-8.014
x2-y2-6.359
xy0.504
xz0.155
yz0.137


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.893 0.453 -0.111
y 0.453 8.240 0.070
z -0.111 0.070 4.844


<r2> (average value of r2) Å2
<r2> 131.133
(<r2>)1/2 11.451