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All results from a given calculation for C4H4S (Thiophene)

using model chemistry: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-552.982865
Energy at 298.15K-552.987280
Nuclear repulsion energy202.628441
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 mPW1PW91/6-31+G**
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 3298 3139 1.40      
2 A1 3263 3106 2.90      
3 A1 1482 1411 12.14      
4 A1 1415 1347 0.31      
5 A1 1114 1060 5.16      
6 A1 1071 1019 2.92      
7 A1 863 822 26.81      
8 A1 621 592 0.13      
9 A2 926 881 0.00      
10 A2 697 663 0.00      
11 A2 578 550 0.00      
12 B1 889 847 0.40      
13 B1 733 697 156.13      
14 B1 461 439 0.92      
15 B2 3296 3137 0.03      
16 B2 3249 3093 3.84      
17 B2 1582 1506 0.17      
18 B2 1287 1225 10.20      
19 B2 1117 1063 5.96      
20 B2 891 848 2.21      
21 B2 766 729 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 14798.6 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 14085.3 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 mPW1PW91/6-31+G**
ABC
0.26840 0.18034 0.10786

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.191
C2 0.000 1.236 -0.006
C3 0.000 -1.236 -0.006
C4 0.000 0.712 -1.269
C5 0.000 -0.712 -1.269
H6 0.000 2.276 0.287
H7 0.000 -2.276 0.287
H8 0.000 1.320 -2.165
H9 0.000 -1.320 -2.165

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9
S11.72101.72102.56142.56142.44882.44883.60663.6066
C21.72102.47241.36742.32211.08033.52432.16063.3462
C31.72102.47242.32211.36743.52431.08033.34622.1606
C42.56141.36742.32211.42472.20623.36931.08272.2214
C52.56142.32211.36741.42473.36932.20622.22141.0827
H62.44881.08033.52432.20623.36934.55182.63204.3529
H72.44883.52431.08033.36932.20624.55184.35292.6320
H83.60662.16063.34621.08272.22142.63204.35292.6408
H93.60663.34622.16062.22141.08274.35292.63202.6408

picture of Thiophene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C4 111.560 S1 C2 H6 120.151
S1 C3 C5 111.560 S1 C3 H7 120.151
C2 S1 C3 91.830 C2 C4 C5 112.524
C2 C4 H8 123.311 C3 C5 C4 112.524
C3 C5 H9 123.311 C4 C2 H6 128.288
C4 C5 H9 124.164 C5 C3 H7 128.288
C5 C4 H8 124.164
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.014      
2 C -0.251      
3 C -0.251      
4 C -0.121      
5 C -0.121      
6 H 0.197      
7 H 0.197      
8 H 0.167      
9 H 0.167      


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 -0.537 0.537
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 112.041
(<r2>)1/2 10.585