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

using model chemistry: HF/CEP-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/CEP-31G*
 hartrees
Energy at 0K-35.354408
Energy at 298.15K-35.361571
Nuclear repulsion energy86.787164
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/CEP-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 3429 3079 20.68      
2 A 3386 3041 7.26      
3 A 3335 2995 41.00      
4 A 3280 2946 84.81      
5 A 3265 2932 21.32      
6 A 3221 2893 65.55      
7 A 1806 1622 14.41      
8 A 1633 1466 0.39      
9 A 1609 1445 1.11      
10 A 1480 1329 0.30      
11 A 1448 1300 5.97      
12 A 1395 1252 18.68      
13 A 1321 1186 2.72      
14 A 1242 1116 1.19      
15 A 1203 1080 0.57      
16 A 1106 994 8.09      
17 A 1072 963 3.68      
18 A 1035 929 0.98      
19 A 981 881 2.63      
20 A 932 837 1.54      
21 A 855 768 25.92      
22 A 772 693 65.52      
23 A 752 675 9.35      
24 A 700 629 5.70      
25 A 534 479 0.35      
26 A 428 384 2.15      
27 A 191 171 1.19      

Unscaled Zero Point Vibrational Energy (zpe) 21204.9 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 19042.0 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/CEP-31G*
ABC
0.22614 0.15548 0.09741

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.135 -0.573 0.194
H2 -1.348 -0.676 1.256
H3 -1.950 -1.010 -0.376
C4 -0.868 0.906 -0.168
H5 -1.490 1.567 0.437
H6 -1.104 1.099 -1.218
C7 1.358 0.008 0.052
H8 2.431 -0.051 0.141
C9 0.621 1.129 0.069
H10 1.049 2.115 0.176
S11 0.418 -1.488 -0.168

Atom - Atom Distances (Å)
  C1 H2 H3 C4 H5 H6 C7 H8 C9 H10 S11
C11.08781.08671.54592.18242.18832.56393.60452.44853.46301.8380
H21.08781.77142.18202.39203.05423.03963.98952.92283.83392.4087
H31.08671.77142.21062.74102.42323.48804.51483.37424.36612.4246
C41.54592.18202.21061.09041.09302.41093.44891.52402.29182.7172
H52.18242.39202.74101.09041.76213.26974.25192.18672.61013.6515
H62.18833.05422.42321.09301.76212.97783.95772.15232.75823.1794
C72.56393.03963.48802.41093.26972.97781.07801.34242.13341.7802
H83.60453.98954.51483.44894.25193.95771.07802.16202.56952.4928
C92.44852.92283.37421.52402.18672.15231.34242.16201.07982.6354
H103.46303.83394.36612.29182.61012.75822.13342.56951.07983.6734
S111.83802.40872.42462.71723.65153.17941.78022.49282.63543.6734

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 110.564 C1 C4 H6 110.875
C1 C4 C9 105.800 C1 S11 C7 90.229
H2 C1 H3 109.100 H2 C1 C4 110.681
H2 C1 S11 108.065 H3 C1 C4 113.054
H3 C1 S11 109.282 C4 C1 S11 106.511
C4 C9 C7 114.362 C4 C9 H10 122.408
H5 C4 H6 107.614 H5 C4 C9 112.470
H6 C4 C9 109.552 C7 C9 H10 123.112
H8 C7 C9 126.222 H8 C7 S11 119.374
C9 C7 S11 114.395
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.285      
2 H 0.136      
3 H 0.152      
4 C -0.088      
5 H 0.114      
6 H 0.111      
7 C -0.305      
8 H 0.277      
9 C -0.282      
10 H 0.274      
11 S -0.103      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.908 1.734 0.283 1.978
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.848 1.380 0.108
y 1.380 -39.045 -0.089
z 0.108 -0.089 -39.568
Traceless
 xyz
x 6.458 1.380 0.108
y 1.380 -2.837 -0.089
z 0.108 -0.089 -3.621
Polar
3z2-r2-7.243
x2-y26.197
xy1.380
xz0.108
yz-0.089


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.664 -0.778 -0.097
y -0.778 9.886 0.373
z -0.097 0.373 5.004


<r2> (average value of r2) Å2
<r2> 93.906
(<r2>)1/2 9.690