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All results from a given calculation for C4H4S (Thiophene)

using model chemistry: PBEPBE/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 PBEPBE/6-31G**
 hartrees
Energy at 0K-552.621820
Energy at 298.15K-552.626065
Nuclear repulsion energy201.082666
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 PBEPBE/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 3208 3164 1.36      
2 A1 3168 3124 4.07      
3 A1 1440 1420 8.07      
4 A1 1365 1346 0.34      
5 A1 1076 1061 3.92      
6 A1 1043 1029 2.48      
7 A1 830 818 20.99      
8 A1 599 591 0.10      
9 A2 874 862 0.00      
10 A2 648 639 0.00      
11 A2 557 550 0.00      
12 B1 830 819 0.28      
13 B1 702 693 107.72      
14 B1 444 438 1.21      
15 B2 3206 3162 0.06      
16 B2 3154 3111 4.23      
17 B2 1526 1505 0.00      
18 B2 1235 1218 10.25      
19 B2 1079 1064 4.12      
20 B2 854 842 0.96      
21 B2 736 726 0.18      

Unscaled Zero Point Vibrational Energy (zpe) 14285.5 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 14089.8 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 PBEPBE/6-31G**
ABC
0.26458 0.17749 0.10623

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.201
C2 0.000 1.247 -0.008
C3 0.000 -1.247 -0.008
C4 0.000 0.715 -1.279
C5 0.000 -0.715 -1.279
H6 0.000 2.293 0.293
H7 0.000 -2.293 0.293
H8 0.000 1.326 -2.183
H9 0.000 -1.326 -2.183

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9
S11.73671.73672.58072.58072.46652.46653.63483.6348
C21.73672.49351.37752.33721.08883.55262.17663.3694
C31.73672.49352.33721.37753.55261.08883.36942.1766
C42.58071.37752.33721.42972.22713.39371.09192.2327
C52.58072.33721.37751.42973.39372.22712.23271.0919
H62.46651.08883.55262.22713.39374.58632.65784.3854
H72.46653.55261.08883.39372.22714.58634.38542.6578
H83.63482.17663.36941.09192.23272.65784.38542.6529
H93.63483.36942.17662.23271.09194.38542.65782.6529

picture of Thiophene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C4 111.407 S1 C2 H6 119.849
S1 C3 C5 111.407 S1 C3 H7 119.849
C2 S1 C3 91.760 C2 C4 C5 112.713
C2 C4 H8 123.221 C3 C5 C4 112.713
C3 C5 H9 123.221 C4 C2 H6 128.743
C4 C5 H9 124.066 C5 C3 H7 128.743
C5 C4 H8 124.066
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.276      
2 C -0.328      
3 C -0.328      
4 C -0.060      
5 C -0.060      
6 H 0.143      
7 H 0.143      
8 H 0.108      
9 H 0.108      


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 -0.572 0.572
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.428 0.000 0.000
y 0.000 -30.891 0.000
z 0.000 0.000 -34.184
Traceless
 xyz
x -6.891 0.000 0.000
y 0.000 5.915 0.000
z 0.000 0.000 0.975
Polar
3z2-r21.951
x2-y2-8.537
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.632 0.000 0.000
y 0.000 9.189 0.000
z 0.000 0.000 10.030


<r2> (average value of r2) Å2
<r2> 112.981
(<r2>)1/2 10.629