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All results from a given calculation for C4H4S (Thiophene)

using model chemistry: HF/TZVP

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/TZVP
 hartrees
Energy at 0K-551.359303
Energy at 298.15K-551.363968
HF Energy-551.359303
Nuclear repulsion energy203.158212
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/TZVP
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 3405 3094 2.61      
2 A1 3369 3061 4.72      
3 A1 1570 1426 23.30      
4 A1 1517 1378 0.03      
5 A1 1202 1092 5.05      
6 A1 1094 994 1.54      
7 A1 878 798 38.54      
8 A1 654 594 1.62      
9 A2 1041 946 0.00      
10 A2 799 726 0.00      
11 A2 609 553 0.00      
12 B1 1025 931 0.36      
13 B1 804 731 152.55      
14 B1 481 437 0.02      
15 B2 3402 3091 0.92      
16 B2 3355 3049 5.72      
17 B2 1714 1558 0.00      
18 B2 1399 1271 10.79      
19 B2 1205 1095 3.30      
20 B2 944 858 1.84      
21 B2 797 724 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 15631.8 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 14203.1 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/TZVP
ABC
0.26846 0.18161 0.10833

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.194
C2 0.000 1.235 -0.019
C3 0.000 -1.235 -0.019
C4 0.000 0.717 -1.257
C5 0.000 -0.717 -1.257
H6 0.000 2.268 0.259
H7 0.000 -2.268 0.259
H8 0.000 1.312 -2.150
H9 0.000 -1.312 -2.150

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9
S11.73131.73132.55432.55432.45312.45313.59213.5921
C21.73132.46991.34192.31181.06993.51402.13183.3208
C31.73132.46992.31181.34193.51401.06993.32082.1318
C42.55431.34192.31181.43472.16903.34851.07252.2173
C52.55432.31181.34191.43473.34852.16902.21731.0725
H62.45311.06993.51402.16903.34854.53602.59154.3154
H72.45313.51401.06993.34852.16904.53604.31542.5915
H83.59212.13183.32081.07252.21732.59154.31542.6250
H93.59213.32082.13182.21731.07254.31542.59152.6250

picture of Thiophene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C4 111.808 S1 C2 H6 120.417
S1 C3 C5 111.808 S1 C3 H7 120.417
C2 S1 C3 91.010 C2 C4 C5 112.687
C2 C4 H8 123.612 C3 C5 C4 112.687
C3 C5 H9 123.612 C4 C2 H6 127.775
C4 C5 H9 123.701 C5 C3 H7 127.775
C5 C4 H8 123.701
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.092      
2 C -0.194      
3 C -0.194      
4 C -0.144      
5 C -0.144      
6 H 0.165      
7 H 0.165      
8 H 0.128      
9 H 0.128      


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 -0.828 0.828
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.162 0.000 0.000
y 0.000 -31.393 0.000
z 0.000 0.000 -35.348
Traceless
 xyz
x -7.792 0.000 0.000
y 0.000 6.862 0.000
z 0.000 0.000 0.930
Polar
3z2-r21.860
x2-y2-9.769
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.113 0.000 0.000
y 0.000 8.899 0.000
z 0.000 0.000 10.239


<r2> (average value of r2) Å2
<r2> 111.841
(<r2>)1/2 10.575