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

using model chemistry: B3LYP/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-166.089042
Energy at 298.15K-166.095793
Nuclear repulsion energy143.473906
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/LANL2DZ
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 3220 3095 24.55      
2 A1 3074 2955 0.01      
3 A1 1702 1636 7.16      
4 A1 1504 1445 7.57      
5 A1 1297 1247 0.24      
6 A1 1162 1117 0.10      
7 A1 963 925 1.25      
8 A1 673 647 3.55      
9 A1 504 484 0.02      
10 A2 3129 3007 0.00      
11 A2 1151 1107 0.00      
12 A2 992 954 0.00      
13 A2 953 916 0.00      
14 A2 379 364 0.00      
15 B1 3132 3010 41.98      
16 B1 1138 1094 13.42      
17 B1 910 874 0.28      
18 B1 699 671 80.10      
19 B1 121 117 5.52      
20 B2 3187 3063 4.38      
21 B2 3074 2954 77.45      
22 B2 1499 1441 3.18      
23 B2 1372 1319 6.71      
24 B2 1266 1217 8.48      
25 B2 995 957 11.69      
26 B2 822 790 1.14      
27 B2 599 576 0.13      

Unscaled Zero Point Vibrational Energy (zpe) 19757.4 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 18990.8 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/LANL2DZ
ABC
0.21226 0.15132 0.09141

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.293
C2 0.000 1.383 -0.024
C3 0.000 -1.383 -0.024
C4 0.000 0.674 -1.360
C5 0.000 -0.674 -1.360
H6 -0.891 2.005 0.115
H7 0.891 2.005 0.115
H8 0.891 -2.005 0.115
H9 -0.891 -2.005 0.115
H10 0.000 1.264 -2.275
H11 0.000 -1.264 -2.275

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.90971.90972.73782.73782.49072.49072.49072.49073.78553.7855
C21.90972.76581.51312.45271.09581.09583.50603.50602.25453.4746
C31.90972.76582.45271.51313.50603.50601.09581.09583.47462.2545
C42.73781.51312.45271.34732.17802.17803.18543.18541.08852.1424
C52.73782.45271.51311.34733.18543.18542.17802.17802.14241.0885
H62.49071.09583.50602.17803.18541.78274.38864.01022.65644.1463
H72.49071.09583.50602.17803.18541.78274.01024.38862.65644.1463
H82.49073.50601.09583.18542.17804.38864.01021.78274.14632.6564
H92.49073.50601.09583.18542.17804.01024.38861.78274.14632.6564
H103.78552.25453.47461.08852.14242.65642.65644.14634.14632.5274
H113.78553.47462.25452.14241.08854.14634.14632.65642.65642.5274

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 105.651 S1 C2 H6 108.896
S1 C2 H7 108.896 S1 C3 C5 105.651
S1 C3 H8 108.896 S1 C3 H9 108.896
C2 S1 C3 92.793 C2 C4 C5 117.953
C2 C4 H10 119.223 C3 C5 C4 117.953
C3 C5 H11 119.223 C4 C2 H6 112.206
C4 C2 H7 112.206 C4 C5 H11 122.824
C5 C3 H8 112.206 C5 C3 H9 112.206
C5 C4 H10 122.824 H6 C2 H7 108.858
H8 C3 H9 108.858
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.123      
2 C -0.637      
3 C -0.637      
4 C -0.141      
5 C -0.141      
6 H 0.245      
7 H 0.245      
8 H 0.245      
9 H 0.245      
10 H 0.227      
11 H 0.227      


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 -2.195 2.195
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.302 0.000 0.000
y 0.000 -31.136 0.000
z 0.000 0.000 -38.756
Traceless
 xyz
x -4.356 0.000 0.000
y 0.000 7.893 0.000
z 0.000 0.000 -3.537
Polar
3z2-r2-7.074
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 10.307 -0.001 0.000
y -0.001 8.504 -0.004
z 0.000 -0.004 4.375


<r2> (average value of r2) Å2
<r2> 116.231
(<r2>)1/2 10.781