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All results from a given calculation for C4H6S (Thiophene, 2,5-dihydro-)

using model chemistry: LSDA/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at LSDA/STO-3G
 hartrees
Energy at 0K-545.968059
Energy at 298.15K-545.974697
Nuclear repulsion energy215.163190
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 LSDA/STO-3G
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 3459 3098 1.34      
2 A1 3259 2918 1.08      
3 A1 1829 1638 1.14      
4 A1 1630 1460 4.99      
5 A1 1386 1241 3.89      
6 A1 1175 1052 0.30      
7 A1 1036 928 0.00      
8 A1 834 747 0.07      
9 A1 557 499 0.65      
10 A2 3343 2994 0.00      
11 A2 1218 1090 0.00      
12 A2 1015 909 0.00      
13 A2 996 892 0.00      
14 A2 388 348 0.00      
15 B1 3346 2996 1.45      
16 B1 1197 1072 0.73      
17 B1 961 861 0.01      
18 B1 707 633 30.84      
19 B1 108 97 2.11      
20 B2 3429 3071 17.93      
21 B2 3257 2917 4.80      
22 B2 1627 1457 0.06      
23 B2 1431 1282 1.91      
24 B2 1330 1191 0.45      
25 B2 1058 947 6.80      
26 B2 896 803 0.19      
27 B2 733 657 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 21102.6 cm-1
Scaled (by 0.8955) Zero Point Vibrational Energy (zpe) 18897.4 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 LSDA/STO-3G
ABC
0.22193 0.15732 0.09537

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.254
C2 0.000 1.335 0.010
C3 0.000 -1.335 0.010
C4 0.000 0.668 -1.347
C5 0.000 -0.668 -1.347
H6 -0.888 1.990 0.125
H7 0.888 1.990 0.125
H8 0.888 -1.990 0.125
H9 -0.888 -1.990 0.125
H10 0.000 1.283 -2.259
H11 0.000 -1.283 -2.259

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.82431.82432.68532.68532.45392.45392.45392.45393.73923.7392
C21.82432.67011.51262.42011.10941.10943.44373.44372.26963.4644
C31.82432.67012.42011.51263.44373.44371.10941.10943.46442.2696
C42.68531.51262.42011.33662.16902.16903.16623.16621.09922.1536
C52.68532.42011.51261.33663.16623.16622.16902.16902.15361.0992
H62.45391.10943.44372.16903.16621.77594.35853.98032.64054.1456
H72.45391.10943.44372.16903.16621.77593.98034.35852.64054.1456
H82.45393.44371.10943.16622.16904.35853.98031.77594.14562.6405
H92.45393.44371.10943.16622.16903.98034.35851.77594.14562.6405
H103.73922.26963.46441.09922.15362.64052.64054.14564.14562.5660
H113.73923.46442.26962.15361.09924.14564.14562.64052.64052.5660

picture of Thiophene, 2,5-dihydro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C4 106.803 S1 C2 H6 111.190
S1 C2 H7 111.190 S1 C3 C5 106.803
S1 C3 H8 111.190 S1 C3 H9 111.190
C2 S1 C3 94.082 C2 C4 C5 116.156
C2 C4 H10 119.844 C3 C5 C4 116.156
C3 C5 H11 119.844 C4 C2 H6 110.696
C4 C2 H7 110.696 C4 C5 H11 124.000
C5 C3 H8 110.696 C5 C3 H9 110.696
C5 C4 H10 124.000 H6 C2 H7 106.327
H8 C3 H9 106.327
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.127      
2 C -0.258      
3 C -0.258      
4 C -0.107      
5 C -0.107      
6 H 0.101      
7 H 0.101      
8 H 0.101      
9 H 0.101      
10 H 0.099      
11 H 0.099      


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 -0.949 0.949
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.857 0.000 0.000
y 0.000 -30.628 0.000
z 0.000 0.000 -34.645
Traceless
 xyz
x -2.220 0.000 0.000
y 0.000 4.123 0.000
z 0.000 0.000 -1.903
Polar
3z2-r2-3.805
x2-y2-4.229
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.008 0.000 0.000
y 0.000 6.035 0.000
z 0.000 0.000 4.250


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