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All results from a given calculation for C4H4S (Thiophene)

using model chemistry: BLYP/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 BLYP/6-31G*
 hartrees
Energy at 0K-552.910361
Energy at 298.15K-552.914553
HF Energy-552.910361
Nuclear repulsion energy199.948595
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 BLYP/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 3189 3163 1.34      
2 A1 3144 3119 9.97      
3 A1 1419 1407 7.57      
4 A1 1366 1355 1.11      
5 A1 1087 1078 3.47      
6 A1 1032 1024 1.89      
7 A1 803 796 20.35      
8 A1 590 586 0.45      
9 A2 874 867 0.00      
10 A2 644 639 0.00      
11 A2 554 549 0.00      
12 B1 829 823 0.13      
13 B1 701 695 96.42      
14 B1 437 433 1.13      
15 B2 3187 3162 2.43      
16 B2 3131 3105 6.43      
17 B2 1519 1506 0.00      
18 B2 1246 1236 11.12      
19 B2 1089 1080 2.95      
20 B2 848 841 0.65      
21 B2 712 706 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 14200.3 cm-1
Scaled (by 0.9919) 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 BLYP/6-31G*
ABC
0.26172 0.17525 0.10496

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.211
C2 0.000 1.251 -0.012
C3 0.000 -1.251 -0.012
C4 0.000 0.722 -1.284
C5 0.000 -0.722 -1.284
H6 0.000 2.300 0.281
H7 0.000 -2.300 0.281
H8 0.000 1.328 -2.192
H9 0.000 -1.328 -2.192

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9
S11.74931.74932.59692.59692.48102.48103.65303.6530
C21.74932.50251.37782.34771.08913.56352.18193.3773
C31.74932.50252.34771.37783.56351.08913.37732.1819
C42.59691.37782.34771.44392.22263.40331.09202.2420
C52.59692.34771.37781.44393.40332.22262.24201.0920
H62.48101.08913.56352.22263.40334.60042.65774.3909
H72.48103.56351.08913.40332.22264.60044.39092.6577
H83.65302.18193.37731.09202.24202.65774.39092.6555
H93.65303.37732.18192.24201.09204.39092.65772.6555

picture of Thiophene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C4 111.743 S1 C2 H6 120.067
S1 C3 C5 111.743 S1 C3 H7 120.067
C2 S1 C3 91.330 C2 C4 C5 112.592
C2 C4 H8 123.713 C3 C5 C4 112.592
C3 C5 H9 123.713 C4 C2 H6 128.190
C4 C5 H9 123.695 C5 C3 H7 128.190
C5 C4 H8 123.695
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.234      
2 C -0.313      
3 C -0.313      
4 C -0.065      
5 C -0.065      
6 H 0.148      
7 H 0.148      
8 H 0.113      
9 H 0.113      


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 -0.601 0.601
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.376 0.000 0.000
y 0.000 -31.212 0.000
z 0.000 0.000 -34.484
Traceless
 xyz
x -6.528 0.000 0.000
y 0.000 5.719 0.000
z 0.000 0.000 0.810
Polar
3z2-r21.620
x2-y2-8.165
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.557 0.000 0.000
y 0.000 9.194 0.000
z 0.000 0.000 10.065


<r2> (average value of r2) Å2
<r2> 114.129
(<r2>)1/2 10.683