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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-552.463495
Energy at 298.15K-552.470663
Nuclear repulsion energy217.397932
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 3401 3070 11.70      
2 A 3362 3034 4.29      
3 A 3298 2976 16.97      
4 A 3240 2925 56.16      
5 A 3223 2909 11.22      
6 A 3175 2866 46.66      
7 A 1823 1645 7.49      
8 A 1630 1471 0.85      
9 A 1608 1451 1.32      
10 A 1481 1336 0.27      
11 A 1453 1312 3.09      
12 A 1407 1270 16.82      
13 A 1327 1198 2.38      
14 A 1256 1134 1.02      
15 A 1225 1105 0.53      
16 A 1116 1007 5.77      
17 A 1073 968 3.09      
18 A 1060 957 2.19      
19 A 978 882 2.36      
20 A 929 839 1.37      
21 A 858 774 20.02      
22 A 777 701 44.18      
23 A 753 680 12.12      
24 A 710 641 4.33      
25 A 547 494 0.40      
26 A 441 398 2.00      
27 A 159 143 1.44      

Unscaled Zero Point Vibrational Energy (zpe) 21153.5 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 19093.1 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
0.22911 0.15744 0.09813

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 -0.050 -1.267 0.190
H2 -0.030 -1.558 1.232
H3 0.144 -2.139 -0.419
C4 -1.383 -0.580 -0.157
H5 -2.185 -0.973 0.460
H6 -1.657 -0.768 -1.194
C7 0.092 1.282 0.076
H8 0.445 2.292 0.164
C9 -1.169 0.900 0.049
H10 -1.992 1.588 0.116
S11 1.271 -0.029 -0.082

Atom - Atom Distances (Å)
  C1 H2 H3 C4 H5 H6 C7 H8 C9 H10 S11
C11.08251.08091.53862.17122.17782.55543.59282.44243.45341.8310
H21.08251.75842.17172.36203.02573.06904.02332.95583.87202.3995
H31.08091.75842.19752.74822.39193.45714.47893.34324.32892.4161
C41.53862.17172.19751.08551.08882.38673.41931.50982.26872.7116
H52.17122.36202.74821.08551.74853.22714.20242.17002.59113.6229
H62.17783.02572.39191.08881.74852.97893.95292.13732.71713.2180
C72.55543.06903.45712.38673.22712.97891.07321.31722.10671.7703
H83.59284.02334.47893.41934.20243.95291.07322.13402.53742.4752
C92.44242.95583.34321.50982.17002.13731.31722.13401.07522.6138
H103.45343.87204.32892.26872.59112.71712.10672.53741.07523.6472
S111.83102.39952.41612.71163.62293.21801.77032.47522.61383.6472

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 110.477 C1 C4 H6 110.809
C1 C4 C9 106.489 C1 S11 C7 90.387
H2 C1 H3 108.743 H2 C1 C4 110.693
H2 C1 S11 108.123 H3 C1 C4 112.883
H3 C1 S11 109.432 C4 C1 S11 106.848
C4 C9 C7 115.015 C4 C9 H10 121.812
H5 C4 H6 107.062 H5 C4 C9 112.442
H6 C4 C9 109.606 C7 C9 H10 123.097
H8 C7 C9 126.129 H8 C7 S11 118.974
C9 C7 S11 114.887
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 -0.389 0.006    
2 H 0.157 0.038    
3 H 0.154 0.058    
4 C -0.235 0.235    
5 H 0.133 -0.032    
6 H 0.138 -0.035    
7 C -0.305 -0.169    
8 H 0.171 0.192    
9 C -0.122 -0.190    
10 H 0.147 0.103    
11 S 0.152 -0.206    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.892 -0.262 0.247 1.926
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.960 0.442 0.057
y 0.442 -33.400 0.130
z 0.057 0.130 -40.188
Traceless
 xyz
x -2.166 0.442 0.057
y 0.442 6.174 0.130
z 0.057 0.130 -4.008
Polar
3z2-r2-8.016
x2-y2-5.560
xy0.442
xz0.057
yz0.130


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.770 0.339 -0.089
y 0.339 8.158 0.088
z -0.089 0.088 5.233


<r2> (average value of r2) Å2
<r2> 127.307
(<r2>)1/2 11.283