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All results from a given calculation for C4H4S (Thiophene)

using model chemistry: HSEh1PBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HSEh1PBE/3-21G
 hartrees
Energy at 0K-549.873640
Energy at 298.15K-549.878079
HF Energy-549.873640
Nuclear repulsion energy199.090343
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 HSEh1PBE/3-21G
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 3324 3202 1.45      
2 A1 3268 3148 0.45      
3 A1 1494 1439 17.92      
4 A1 1406 1354 0.24      
5 A1 1147 1105 3.54      
6 A1 1049 1010 2.40      
7 A1 804 775 29.19      
8 A1 615 592 2.04      
9 A2 978 942 0.00      
10 A2 750 722 0.00      
11 A2 595 573 0.00      
12 B1 948 913 3.12      
13 B1 759 732 180.52      
14 B1 451 434 0.16      
15 B2 3319 3197 1.03      
16 B2 3253 3134 2.61      
17 B2 1599 1540 0.37      
18 B2 1309 1261 15.03      
19 B2 1142 1100 5.01      
20 B2 890 857 0.17      
21 B2 706 680 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 14902.2 cm-1
Scaled (by 0.9633) Zero Point Vibrational Energy (zpe) 14355.3 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 HSEh1PBE/3-21G
ABC
0.25996 0.17279 0.10380

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.232
C2 0.000 1.263 -0.038
C3 0.000 -1.263 -0.038
C4 0.000 0.718 -1.281
C5 0.000 -0.718 -1.281
H6 0.000 2.304 0.241
H7 0.000 -2.304 0.241
H8 0.000 1.312 -2.185
H9 0.000 -1.312 -2.185

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9
S11.79151.79152.61432.61432.50792.50793.66073.6607
C21.79152.52631.35742.33921.07753.57782.14763.3530
C31.79152.52632.33921.35743.57781.07753.35302.1476
C42.61431.35742.33921.43672.19813.38401.08152.2227
C52.61432.33921.35741.43673.38402.19812.22271.0815
H62.50791.07753.57782.19813.38404.60752.62114.3546
H72.50793.57781.07753.38402.19814.60754.35462.6211
H83.66072.14763.35301.08152.22272.62114.35462.6246
H93.66073.35302.14762.22271.08154.35462.62112.6246

picture of Thiophene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C4 111.501 S1 C2 H6 119.813
S1 C3 C5 111.501 S1 C3 H7 119.813
C2 S1 C3 89.673 C2 C4 C5 113.663
C2 C4 H8 123.025 C3 C5 C4 113.663
C3 C5 H9 123.025 C4 C2 H6 128.686
C4 C5 H9 123.312 C5 C3 H7 128.686
C5 C4 H8 123.312
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.563      
2 C -0.596      
3 C -0.596      
4 C -0.177      
5 C -0.177      
6 H 0.260      
7 H 0.260      
8 H 0.232      
9 H 0.232      


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 -0.953 0.953
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.041 0.000 0.000
y 0.000 -30.588 0.000
z 0.000 0.000 -34.684
Traceless
 xyz
x -8.405 0.000 0.000
y 0.000 7.274 0.000
z 0.000 0.000 1.131
Polar
3z2-r22.262
x2-y2-10.452
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.586 0.000 0.000
y 0.000 8.414 0.000
z 0.000 0.000 9.362


<r2> (average value of r2) Å2
<r2> 115.214
(<r2>)1/2 10.734