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

using model chemistry: BLYP/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-554.192400
Energy at 298.15K-554.199043
Nuclear repulsion energy213.704779
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/cc-pVTZ
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 3101 3092 21.56      
2 A1 2952 2943 0.16      
3 A1 1643 1638 7.91      
4 A1 1447 1443 6.27      
5 A1 1242 1239 0.53      
6 A1 1117 1114 0.44      
7 A1 924 921 0.12      
8 A1 666 664 2.26      
9 A1 491 490 0.05      
10 A2 2974 2965 0.00      
11 A2 1111 1108 0.00      
12 A2 937 934 0.00      
13 A2 921 918 0.00      
14 A2 374 373 0.00      
15 B1 2976 2967 23.66      
16 B1 1098 1094 10.64      
17 B1 870 867 0.29      
18 B1 660 658 41.93      
19 B1 107 107 3.33      
20 B2 3079 3070 5.50      
21 B2 2952 2944 76.28      
22 B2 1445 1440 0.01      
23 B2 1331 1327 2.83      
24 B2 1205 1201 5.16      
25 B2 937 934 9.42      
26 B2 797 795 0.46      
27 B2 592 590 0.25      

Unscaled Zero Point Vibrational Energy (zpe) 18973.1 cm-1
Scaled (by 0.997) Zero Point Vibrational Energy (zpe) 18916.2 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/cc-pVTZ
ABC
0.21683 0.15586 0.09388

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.267
C2 0.000 1.363 -0.010
C3 0.000 -1.363 -0.010
C4 0.000 0.667 -1.346
C5 0.000 -0.667 -1.346
H6 -0.887 1.996 0.128
H7 0.887 1.996 0.128
H8 0.887 -1.996 0.128
H9 -0.887 -1.996 0.128
H10 0.000 1.261 -2.259
H11 0.000 -1.261 -2.259

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.86831.86832.69692.69692.46362.46362.46362.46363.74533.7453
C21.86832.72691.50622.43081.09811.09813.47733.47732.25163.4565
C31.86832.72692.43081.50623.47733.47731.09811.09813.45652.2516
C42.69691.50622.43081.33492.17322.17323.17043.17041.08952.1340
C52.69692.43081.50621.33493.17043.17042.17322.17322.13401.0895
H62.46361.09813.47732.17323.17041.77424.36843.99182.65034.1343
H72.46361.09813.47732.17323.17041.77423.99184.36842.65034.1343
H82.46363.47731.09813.17042.17324.36843.99181.77424.13432.6503
H92.46363.47731.09813.17042.17323.99184.36841.77424.13432.6503
H103.74532.25163.45651.08952.13402.65032.65034.13434.13432.5222
H113.74533.45652.25162.13401.08954.13434.13432.65032.65032.5222

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 105.609 S1 C2 H6 109.550
S1 C2 H7 109.550 S1 C3 C5 105.609
S1 C3 H8 109.550 S1 C3 H9 109.550
C2 S1 C3 93.739 C2 C4 C5 117.522
C2 C4 H10 119.463 C3 C5 C4 117.522
C3 C5 H11 119.463 C4 C2 H6 112.165
C4 C2 H7 112.165 C4 C5 H11 123.016
C5 C3 H8 112.165 C5 C3 H9 112.165
C5 C4 H10 123.016 H6 C2 H7 107.770
H8 C3 H9 107.770
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.115      
2 C -0.122      
3 C -0.122      
4 C -0.119      
5 C -0.119      
6 H 0.097      
7 H 0.097      
8 H 0.097      
9 H 0.097      
10 H 0.103      
11 H 0.103      


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 -1.751 1.751
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.021 0.000 0.000
y 0.000 -33.443 0.000
z 0.000 0.000 -39.685
Traceless
 xyz
x -3.457 0.000 0.000
y 0.000 6.410 0.000
z 0.000 0.000 -2.954
Polar
3z2-r2-5.907
x2-y2-6.578
xy0.000
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 131.178
(<r2>)1/2 11.453