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

using model chemistry: wB97X-D/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at wB97X-D/6-31G*
 hartrees
Energy at 0K-554.133711
Energy at 298.15K-554.140436
HF Energy-554.133711
Nuclear repulsion energy 
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 wB97X-D/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 A1 3236 3069 17.95      
2 A1 3086 2927 0.20      
3 A1 1760 1669 6.24      
4 A1 1517 1439 6.83      
5 A1 1320 1252 0.18      
6 A1 1157 1098 0.40      
7 A1 976 926 0.09      
8 A1 735 697 3.10      
9 A1 524 497 0.03      
10 A2 3128 2967 0.00      
11 A2 1171 1111 0.00      
12 A2 991 940 0.00      
13 A2 961 911 0.00      
14 A2 376 356 0.00      
15 B1 3130 2968 21.33      
16 B1 1156 1096 10.70      
17 B1 917 869 0.52      
18 B1 693 658 45.78      
19 B1 61 58 5.27      
20 B2 3212 3047 3.90      
21 B2 3086 2927 67.31      
22 B2 1513 1435 0.00      
23 B2 1382 1311 2.11      
24 B2 1282 1216 7.36      
25 B2 989 938 7.87      
26 B2 837 794 0.63      
27 B2 657 623 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 19925.1 cm-1
Scaled (by 0.9485) Zero Point Vibrational Energy (zpe) 18899.0 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 wB97X-D/6-31G*
ABC
0.22118 0.15901 0.09583

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.248
C2 0.000 1.348 0.002
C3 0.000 -1.348 0.002
C4 0.000 0.664 -1.337
C5 0.000 -0.664 -1.337
H6 -0.886 1.979 0.132
H7 0.886 1.979 0.132
H8 0.886 -1.979 0.132
H9 -0.886 -1.979 0.132
H10 0.000 1.264 -2.244
H11 0.000 -1.264 -2.244

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.83541.83542.66942.66942.43862.43862.43862.43863.71373.7137
C21.83542.69541.50372.41721.09531.09533.44493.44492.24753.4447
C31.83542.69542.41721.50373.44493.44491.09531.09533.44472.2475
C42.66941.50372.41721.32882.16112.16113.15113.15111.08692.1309
C52.66942.41721.50371.32883.15113.15112.16112.16112.13091.0869
H62.43861.09533.44492.16113.15111.77174.33613.95762.63414.1163
H72.43861.09533.44492.16113.15111.77173.95764.33612.63414.1163
H82.43863.44491.09533.15112.16114.33613.95761.77174.11632.6341
H92.43863.44491.09533.15112.16113.95764.33611.77174.11632.6341
H103.71372.24753.44471.08692.13092.63412.63414.11634.11632.5282
H113.71373.44472.24752.13091.08694.11634.11632.63412.63412.5282

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 105.725 S1 C2 H6 110.045
S1 C2 H7 110.045 S1 C3 C5 105.725
S1 C3 H8 110.045 S1 C3 H9 110.045
C2 S1 C3 94.494 C2 C4 C5 117.027
C2 C4 H10 119.487 C3 C5 C4 117.027
C3 C5 H11 119.487 C4 C2 H6 111.542
C4 C2 H7 111.542 C4 C5 H11 123.486
C5 C3 H8 111.542 C5 C3 H9 111.542
C5 C4 H10 123.486 H6 C2 H7 107.947
H8 C3 H9 107.947
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.095      
2 C -0.501      
3 C -0.501      
4 C -0.129      
5 C -0.129      
6 H 0.203      
7 H 0.203      
8 H 0.203      
9 H 0.203      
10 H 0.176      
11 H 0.176      


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 -2.048 2.048
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.284 0.000 0.000
y 0.000 -32.006 0.000
z 0.000 0.000 -38.726
Traceless
 xyz
x -3.918 0.000 0.000
y 0.000 6.999 0.000
z 0.000 0.000 -3.081
Polar
3z2-r2-6.162
x2-y2-7.278
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.178 0.000 0.000
y 0.000 9.862 0.000
z 0.000 0.000 8.372


<r2> (average value of r2) Å2
<r2> 128.480
(<r2>)1/2 11.335