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

using model chemistry: B2PLYP/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 B2PLYP/cc-pVTZ
 hartrees
Energy at 0K-554.004550
Energy at 298.15K-554.011358
HF Energy-553.731031
Nuclear repulsion energy215.976362
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 B2PLYP/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 3209 3078 15.71      
2 A1 3057 2933 0.33      
3 A1 1698 1629 7.04      
4 A1 1500 1439 5.61      
5 A1 1297 1244 0.16      
6 A1 1148 1101 0.55      
7 A1 965 926 0.16      
8 A1 720 690 2.18      
9 A1 515 494 0.01      
10 A2 3091 2966 0.00      
11 A2 1158 1111 0.00      
12 A2 980 940 0.00      
13 A2 958 919 0.00      
14 A2 385 369 0.00      
15 B1 3093 2967 17.45      
16 B1 1143 1096 11.32      
17 B1 911 874 0.92      
18 B1 687 659 44.27      
19 B1 98 94 3.66      
20 B2 3185 3056 3.43      
21 B2 3057 2933 64.68      
22 B2 1497 1436 0.01      
23 B2 1376 1320 3.08      
24 B2 1258 1207 5.28      
25 B2 980 940 8.76      
26 B2 830 796 0.71      
27 B2 646 619 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 19718.1 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 18917.5 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 B2PLYP/cc-pVTZ
ABC
0.22105 0.15965 0.09600

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.246
C2 0.000 1.349 0.001
C3 0.000 -1.349 0.001
C4 0.000 0.664 -1.334
C5 0.000 -0.664 -1.334
H6 -0.882 1.976 0.132
H7 0.882 1.976 0.132
H8 0.882 -1.976 0.132
H9 -0.882 -1.976 0.132
H10 0.000 1.258 -2.238
H11 0.000 -1.258 -2.238

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.83581.83582.66382.66382.43382.43382.43382.43383.70393.7039
C21.83582.69781.50002.41501.08981.08983.44233.44232.24053.4358
C31.83582.69782.41501.50003.44233.44231.08981.08983.43582.2405
C42.66381.50002.41501.32782.15552.15553.14543.14541.08162.1235
C52.66382.41501.50001.32783.14543.14542.15552.15552.12351.0816
H62.43381.08983.44232.15553.14541.76334.32753.95202.62834.1046
H72.43381.08983.44232.15553.14541.76333.95204.32752.62834.1046
H82.43383.44231.08983.14542.15554.32753.95201.76334.10462.6283
H92.43383.44231.08983.14542.15553.95204.32751.76334.10462.6283
H103.70392.24053.43581.08162.12352.62832.62834.10464.10462.5150
H113.70393.43582.24052.12351.08164.10464.10462.62832.62832.5150

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 105.541 S1 C2 H6 109.959
S1 C2 H7 109.959 S1 C3 C5 105.541
S1 C3 H8 109.959 S1 C3 H9 109.959
C2 S1 C3 94.576 C2 C4 C5 117.172
C2 C4 H10 119.541 C3 C5 C4 117.172
C3 C5 H11 119.541 C4 C2 H6 111.691
C4 C2 H7 111.691 C4 C5 H11 123.288
C5 C3 H8 111.691 C5 C3 H9 111.691
C5 C4 H10 123.288 H6 C2 H7 107.995
H8 C3 H9 107.995
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.134      
2 C -0.125      
3 C -0.125      
4 C -0.170      
5 C -0.170      
6 H 0.109      
7 H 0.109      
8 H 0.109      
9 H 0.109      
10 H 0.143      
11 H 0.143      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.115 0.000 0.000
y 0.000 10.816 0.000
z 0.000 0.000 9.625


<r2> (average value of r2) Å2
<r2> 128.749
(<r2>)1/2 11.347