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

using model chemistry: HF/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 HF/SDD
 hartrees
Energy at 0K-552.371261
Energy at 298.15K-552.378360
Nuclear repulsion energy213.526541
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 HF/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 3408 3069 27.51      
2 A1 3266 2941 0.05      
3 A1 1840 1657 8.95      
4 A1 1643 1479 6.23      
5 A1 1427 1285 0.02      
6 A1 1266 1140 0.08      
7 A1 1018 917 2.14      
8 A1 733 660 6.34      
9 A1 549 494 0.09      
10 A2 3324 2993 0.00      
11 A2 1271 1145 0.00      
12 A2 1112 1002 0.00      
13 A2 1044 940 0.00      
14 A2 424 382 0.00      
15 B1 3327 2995 46.19      
16 B1 1256 1131 17.74      
17 B1 1010 910 3.68      
18 B1 776 699 75.95      
19 B1 134 121 6.31      
20 B2 3378 3041 5.95      
21 B2 3264 2939 100.42      
22 B2 1638 1475 1.74      
23 B2 1502 1352 8.13      
24 B2 1395 1257 13.58      
25 B2 1060 955 11.49      
26 B2 895 806 2.76      
27 B2 653 588 1.25      

Unscaled Zero Point Vibrational Energy (zpe) 21306.9 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 19184.7 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 HF/SDD
ABC
0.21663 0.15475 0.09338

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.275
C2 0.000 1.371 -0.015
C3 0.000 -1.371 -0.015
C4 0.000 0.665 -1.350
C5 0.000 -0.665 -1.350
H6 -0.879 1.983 0.121
H7 0.879 1.983 0.121
H8 0.879 -1.983 0.121
H9 -0.879 -1.983 0.121
H10 0.000 1.248 -2.251
H11 0.000 -1.248 -2.251

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.88231.88232.70812.70812.45682.45682.45682.45683.74073.7407
C21.88232.74161.51032.43471.07941.07943.46943.46942.23973.4441
C31.88232.74162.43471.51033.46943.46941.07941.07943.44412.2397
C42.70811.51032.43471.33022.16152.16153.15383.15381.07342.1151
C52.70812.43471.51031.33023.15383.15382.16152.16152.11511.0734
H62.45681.07943.46942.16153.15381.75774.33743.96532.63404.1035
H72.45681.07943.46942.16153.15381.75773.96534.33742.63404.1035
H82.45683.46941.07943.15382.16154.33743.96531.75774.10352.6340
H92.45683.46941.07943.15382.16153.96534.33741.75774.10352.6340
H103.74072.23973.44411.07342.11512.63402.63404.10354.10352.4969
H113.74073.44412.23972.11511.07344.10354.10352.63402.63402.4969

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 105.401 S1 C2 H6 109.068
S1 C2 H7 109.068 S1 C3 C5 105.401
S1 C3 H8 109.068 S1 C3 H9 109.068
C2 S1 C3 93.483 C2 C4 C5 117.857
C2 C4 H10 119.225 C3 C5 C4 117.857
C3 C5 H11 119.225 C4 C2 H6 112.083
C4 C2 H7 112.083 C4 C5 H11 122.918
C5 C3 H8 112.083 C5 C3 H9 112.083
C5 C4 H10 122.918 H6 C2 H7 109.016
H8 C3 H9 109.016
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.095      
2 C -0.595      
3 C -0.595      
4 C -0.127      
5 C -0.127      
6 H 0.229      
7 H 0.229      
8 H 0.229      
9 H 0.229      
10 H 0.217      
11 H 0.217      


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 -2.372 2.372
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.781 0.000 0.000
y 0.000 -32.689 0.000
z 0.000 0.000 -41.028
Traceless
 xyz
x -3.923 0.000 0.000
y 0.000 8.216 0.000
z 0.000 0.000 -4.293
Polar
3z2-r2-8.586
x2-y2-8.092
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.969 0.000 0.000
y 0.000 10.339 0.000
z 0.000 0.000 4.468


<r2> (average value of r2) Å2
<r2> 131.707
(<r2>)1/2 11.476