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

using model chemistry: BLYP/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 BLYP/STO-3G
 hartrees
Energy at 0K-547.775947
Energy at 298.15K-547.782459
Nuclear repulsion energy211.532100
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/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 3364 3112 0.62      
2 A1 3165 2928 0.05      
3 A1 1763 1631 2.35      
4 A1 1628 1506 2.90      
5 A1 1364 1262 0.03      
6 A1 1172 1085 0.70      
7 A1 982 908 0.22      
8 A1 784 725 0.02      
9 A1 536 496 0.62      
10 A2 3248 3005 0.00      
11 A2 1204 1114 0.00      
12 A2 987 913 0.00      
13 A2 969 896 0.00      
14 A2 376 348 0.00      
15 B1 3251 3008 14.20      
16 B1 1189 1100 0.85      
17 B1 946 875 0.14      
18 B1 693 641 21.43      
19 B1 107 99 1.19      
20 B2 3334 3084 6.96      
21 B2 3163 2927 20.24      
22 B2 1625 1504 2.82      
23 B2 1412 1307 1.24      
24 B2 1313 1215 0.62      
25 B2 1012 936 3.31      
26 B2 861 797 0.02      
27 B2 698 646 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20573.1 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 19034.2 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/STO-3G
ABC
0.21526 0.15120 0.09195

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.280
C2 0.000 1.359 0.009
C3 0.000 -1.359 0.009
C4 0.000 0.675 -1.375
C5 0.000 -0.675 -1.375
H6 -0.895 2.018 0.125
H7 0.895 2.018 0.125
H8 0.895 -2.018 0.125
H9 -0.895 -2.018 0.125
H10 0.000 1.294 -2.293
H11 0.000 -1.294 -2.293

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.86141.86142.73992.73992.49152.49152.49152.49153.80013.8001
C21.86142.71871.54372.46051.11751.11753.49593.49592.30223.5125
C31.86142.71872.46051.54373.49593.49591.11751.11753.51252.3022
C42.73991.54372.46051.35042.20362.20363.21033.21031.10682.1726
C52.73992.46051.54371.35043.21033.21032.20362.20362.17261.1068
H62.49151.11753.49592.20363.21031.79034.41534.03602.67804.1975
H72.49151.11753.49592.20363.21031.79034.03604.41532.67804.1975
H82.49153.49591.11753.21032.20364.41534.03601.79034.19752.6780
H92.49153.49591.11753.21032.20364.03604.41531.79034.19752.6780
H103.80012.30223.51251.10682.17262.67802.67804.19754.19752.5885
H113.80013.51252.30222.17261.10684.19754.19752.67802.67802.5885

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 106.782 S1 C2 H6 111.047
S1 C2 H7 111.047 S1 C3 C5 106.782
S1 C3 H8 111.047 S1 C3 H9 111.047
C2 S1 C3 93.820 C2 C4 C5 116.308
C2 C4 H10 119.683 C3 C5 C4 116.308
C3 C5 H11 119.683 C4 C2 H6 110.782
C4 C2 H7 110.782 C4 C5 H11 124.009
C5 C3 H8 110.782 C5 C3 H9 110.782
C5 C4 H10 124.009 H6 C2 H7 106.460
H8 C3 H9 106.460
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.142      
2 C -0.213      
3 C -0.213      
4 C -0.083      
5 C -0.083      
6 H 0.075      
7 H 0.075      
8 H 0.075      
9 H 0.075      
10 H 0.076      
11 H 0.076      


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 -0.748 0.748
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.248 0.000 0.000
y 0.000 -31.613 0.000
z 0.000 0.000 -34.800
Traceless
 xyz
x -2.041 0.000 0.000
y 0.000 3.411 0.000
z 0.000 0.000 -1.370
Polar
3z2-r2-2.739
x2-y2-3.635
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.103 0.000 0.000
y 0.000 6.370 0.000
z 0.000 0.000 4.579


<r2> (average value of r2) Å2
<r2> 131.148
(<r2>)1/2 11.452