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

using model chemistry: B3LYP/SDD

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/SDD
 hartrees
Energy at 0K-554.155344
Energy at 298.15K-554.162092
Nuclear repulsion energy211.484627
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/SDD
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 3096 25.05      
2 A1 3074 2955 0.11      
3 A1 1702 1636 7.01      
4 A1 1504 1446 7.15      
5 A1 1297 1246 0.32      
6 A1 1161 1116 0.09      
7 A1 963 926 1.24      
8 A1 673 647 3.32      
9 A1 505 485 0.03      
10 A2 3129 3008 0.00      
11 A2 1150 1106 0.00      
12 A2 992 954 0.00      
13 A2 954 917 0.00      
14 A2 379 364 0.00      
15 B1 3132 3011 41.26      
16 B1 1136 1092 12.15      
17 B1 909 874 0.42      
18 B1 699 672 78.52      
19 B1 120 115 5.39      
20 B2 3188 3064 4.62      
21 B2 3074 2955 77.87      
22 B2 1499 1441 2.95      
23 B2 1372 1319 6.63      
24 B2 1263 1215 9.42      
25 B2 995 956 11.91      
26 B2 821 789 1.32      
27 B2 595 572 0.40      

Unscaled Zero Point Vibrational Energy (zpe) 19752.1 cm-1
Scaled (by 0.9613) Zero Point Vibrational Energy (zpe) 18987.7 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/SDD
ABC
0.21266 0.15188 0.09169

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.290
C2 0.000 1.381 -0.021
C3 0.000 -1.381 -0.021
C4 0.000 0.674 -1.359
C5 0.000 -0.674 -1.359
H6 -0.891 2.003 0.118
H7 0.891 2.003 0.118
H8 0.891 -2.003 0.118
H9 -0.891 -2.003 0.118
H10 0.000 1.264 -2.273
H11 0.000 -1.264 -2.273

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.90441.90442.73292.73292.48582.48582.48582.48583.78063.7806
C21.90442.76231.51302.45171.09571.09573.50243.50242.25493.4740
C31.90442.76232.45171.51303.50243.50241.09571.09573.47402.2549
C42.73291.51302.45171.34742.17792.17793.18453.18451.08852.1427
C52.73292.45171.51301.34743.18453.18452.17792.17792.14271.0885
H62.48581.09573.50242.17793.18451.78254.38484.00612.65704.1459
H72.48581.09573.50242.17793.18451.78254.00614.38482.65704.1459
H82.48583.50241.09573.18452.17794.38484.00611.78254.14592.6570
H92.48583.50241.09573.18452.17794.00614.38481.78254.14592.6570
H103.78062.25493.47401.08852.14272.65702.65704.14594.14592.5282
H113.78063.47402.25492.14271.08854.14594.14592.65702.65702.5282

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 105.633 S1 C2 H6 108.900
S1 C2 H7 108.900 S1 C3 C5 105.633
S1 C3 H8 108.900 S1 C3 H9 108.900
C2 S1 C3 92.979 C2 C4 C5 117.878
C2 C4 H10 119.274 C3 C5 C4 117.878
C3 C5 H11 119.274 C4 C2 H6 112.211
C4 C2 H7 112.211 C4 C5 H11 122.848
C5 C3 H8 112.211 C5 C3 H9 112.211
C5 C4 H10 122.848 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/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.132      
2 C -0.638      
3 C -0.638      
4 C -0.137      
5 C -0.137      
6 H 0.242      
7 H 0.242      
8 H 0.242      
9 H 0.242      
10 H 0.225      
11 H 0.225      


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 -2.124 2.124
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.890 0.000 0.000
y 0.000 -31.955 0.000
z 0.000 0.000 -39.336
Traceless
 xyz
x -4.244 0.000 0.000
y 0.000 7.657 0.000
z 0.000 0.000 -3.413
Polar
3z2-r2-6.826
x2-y2-7.934
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.358 0.002 0.003
y 0.002 10.302 -0.002
z 0.003 -0.002 4.618


<r2> (average value of r2) Å2
<r2> 133.075
(<r2>)1/2 11.536