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

using model chemistry: B3LYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/STO-3G
 hartrees
Energy at 0K-547.921344
Energy at 298.15K-547.928028
Nuclear repulsion energy213.496902
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 B3LYP/STO-3G
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 3473 3099 0.02      
2 A1 3282 2929 0.04      
3 A1 1843 1644 2.00      
4 A1 1677 1496 2.48      
5 A1 1418 1266 0.19      
6 A1 1206 1076 0.76      
7 A1 1023 913 0.20      
8 A1 826 737 0.01      
9 A1 558 498 0.74      
10 A2 3372 3009 0.00      
11 A2 1248 1114 0.00      
12 A2 1028 918 0.00      
13 A2 1015 905 0.00      
14 A2 393 350 0.00      
15 B1 3375 3012 8.69      
16 B1 1232 1100 0.78      
17 B1 982 876 0.35      
18 B1 724 646 21.09      
19 B1 111 99 1.36      
20 B2 3442 3072 11.38      
21 B2 3281 2928 12.14      
22 B2 1674 1494 1.75      
23 B2 1460 1303 1.43      
24 B2 1366 1219 0.47      
25 B2 1054 940 3.38      
26 B2 900 803 0.00      
27 B2 733 654 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 21346.4 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 19049.5 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 B3LYP/STO-3G
ABC
0.21927 0.15407 0.09369

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.267
C2 0.000 1.347 0.011
C3 0.000 -1.347 0.011
C4 0.000 0.669 -1.363
C5 0.000 -0.669 -1.363
H6 -0.888 1.999 0.127
H7 0.888 1.999 0.127
H8 0.888 -1.999 0.127
H9 -0.888 -1.999 0.127
H10 0.000 1.284 -2.273
H11 0.000 -1.284 -2.273

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.84151.84152.71402.71402.46732.46732.46732.46733.76593.7659
C21.84152.69351.53272.43941.10841.10843.46413.46412.28513.4842
C31.84152.69352.43941.53273.46413.46411.10841.10843.48422.2851
C42.71401.53272.43941.33712.18652.18653.18243.18241.09852.1543
C52.71402.43941.53271.33713.18243.18242.18652.18652.15431.0985
H62.46731.10843.46412.18653.18241.77674.37583.99892.65714.1630
H72.46731.10843.46412.18653.18241.77673.99894.37582.65714.1630
H82.46733.46411.10843.18242.18654.37583.99891.77674.16302.6571
H92.46733.46411.10843.18242.18653.99894.37581.77674.16302.6571
H103.76592.28513.48421.09852.15432.65712.65714.16304.16302.5683
H113.76593.48422.28512.15431.09854.16304.16302.65712.65712.5683

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 106.738 S1 C2 H6 111.071
S1 C2 H7 111.071 S1 C3 C5 106.738
S1 C3 H8 111.071 S1 C3 H9 111.071
C2 S1 C3 93.997 C2 C4 C5 116.264
C2 C4 H10 119.653 C3 C5 C4 116.264
C3 C5 H11 119.653 C4 C2 H6 110.739
C4 C2 H7 110.739 C4 C5 H11 124.084
C5 C3 H8 110.739 C5 C3 H9 110.739
C5 C4 H10 124.084 H6 C2 H7 106.541
H8 C3 H9 106.541
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.141      
2 C -0.220      
3 C -0.220      
4 C -0.084      
5 C -0.084      
6 H 0.077      
7 H 0.077      
8 H 0.077      
9 H 0.077      
10 H 0.078      
11 H 0.078      


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 -0.846 0.846
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.195 0.000 0.000
y 0.000 -31.612 0.000
z 0.000 0.000 -34.995
Traceless
 xyz
x -1.892 0.000 0.000
y 0.000 3.483 0.000
z 0.000 0.000 -1.591
Polar
3z2-r2-3.183
x2-y2-3.583
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.056 0.000 0.000
y 0.000 6.198 0.000
z 0.000 0.000 4.375


<r2> (average value of r2) Å2
<r2> 129.162
(<r2>)1/2 11.365