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All results from a given calculation for C4H4S (Thiophene)

using model chemistry: HF/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/6-311+G(3df,2p)
 hartrees
Energy at 0K-551.374107
Energy at 298.15K-551.378792
Nuclear repulsion energy204.228779
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/6-311+G(3df,2p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3394 3084 2.53      
2 A1 3359 3052 4.98      
3 A1 1550 1408 18.95      
4 A1 1517 1378 0.20      
5 A1 1194 1085 4.29      
6 A1 1099 999 1.62      
7 A1 888 807 32.81      
8 A1 656 596 0.66      
9 A2 1052 956 0.00      
10 A2 803 729 0.00      
11 A2 614 558 0.00      
12 B1 1028 934 0.41      
13 B1 809 735 145.40      
14 B1 489 445 0.09      
15 B2 3391 3081 0.81      
16 B2 3344 3039 4.88      
17 B2 1700 1545 0.00      
18 B2 1400 1272 7.94      
19 B2 1198 1088 2.63      
20 B2 942 856 1.44      
21 B2 808 734 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 15617.6 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 14190.2 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 HF/6-311+G(3df,2p)
ABC
0.27073 0.18406 0.10957

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.182
C2 0.000 1.229 -0.010
C3 0.000 -1.229 -0.010
C4 0.000 0.715 -1.253
C5 0.000 -0.715 -1.253
H6 0.000 2.260 0.271
H7 0.000 -2.260 0.271
H8 0.000 1.312 -2.143
H9 0.000 -1.312 -2.143

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9
S11.71171.71172.53792.53792.43632.43633.57453.5745
C21.71172.45711.34492.30731.06893.49962.13463.3175
C31.71172.45712.30731.34493.49961.06893.31752.1346
C42.53791.34492.30731.43062.17023.34291.07162.2143
C52.53792.30731.34491.43063.34292.17022.21431.0716
H62.43631.06893.49962.17023.34294.51952.59374.3115
H72.43633.49961.06893.34292.17024.51954.31152.5937
H83.57452.13463.31751.07162.21432.59374.31152.6247
H93.57453.31752.13462.21431.07164.31152.59372.6247

picture of Thiophene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C4 111.699 S1 C2 H6 120.603
S1 C3 C5 111.699 S1 C3 H7 120.603
C2 S1 C3 91.736 C2 C4 C5 112.433
C2 C4 H8 123.709 C3 C5 C4 112.433
C3 C5 H9 123.709 C4 C2 H6 127.698
C4 C5 H9 123.858 C5 C3 H7 127.698
C5 C4 H8 123.858
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.408      
2 C -0.088      
3 C -0.088      
4 C 0.015      
5 C 0.015      
6 H 0.142      
7 H 0.142      
8 H 0.135      
9 H 0.135      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.786 0.786
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.210 0.000 0.000
y 0.000 -31.492 0.000
z 0.000 0.000 -35.237
Traceless
 xyz
x -7.846 0.000 0.000
y 0.000 6.732 0.000
z 0.000 0.000 1.114
Polar
3z2-r22.227
x2-y2-9.719
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.423 0.000 0.000
y 0.000 9.661 0.000
z 0.000 0.000 10.932


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000