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All results from a given calculation for C4H4S (Thiophene)

using model chemistry: MP2/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/TZVP
 hartrees
Energy at 0K-552.047382
Energy at 298.15K 
HF Energy-551.357277
Nuclear repulsion energy202.447598
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 MP2/TZVP
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 3299 3127 1.72      
2 A1 3268 3098 1.94      
3 A1 1453 1377 9.09      
4 A1 1409 1336 2.42      
5 A1 1116 1058 5.18      
6 A1 1078 1022 2.69      
7 A1 870 825 25.79      
8 A1 618 586 0.05      
9 A2 689 653 0.00      
10 A2 557 528 0.00      
11 A2 291i 276i 0.00      
12 B1 743 704 0.38      
13 B1 670 636 146.13      
14 B1 422 400 2.06      
15 B2 3296 3124 0.00      
16 B2 3255 3085 3.26      
17 B2 1539 1459 0.09      
18 B2 1294 1227 12.35      
19 B2 1118 1060 4.90      
20 B2 896 849 0.79      
21 B2 765 726 0.22      

Unscaled Zero Point Vibrational Energy (zpe) 14032.3 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 13301.2 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 MP2/TZVP
ABC
0.26938 0.17916 0.10760

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.195
C2 0.000 1.235 -0.006
C3 0.000 -1.235 -0.006
C4 0.000 0.708 -1.274
C5 0.000 -0.708 -1.274
H6 0.000 2.273 0.286
H7 0.000 -2.273 0.286
H8 0.000 1.318 -2.166
H9 0.000 -1.318 -2.166

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9
S11.72341.72342.56882.56882.44842.44843.61073.6107
C21.72342.47061.37272.32041.07823.52062.16163.3441
C31.72342.47062.32041.37273.52061.07823.34412.1616
C42.56881.37272.32041.41672.20933.36481.08062.2138
C52.56882.32041.37271.41673.36482.20932.21381.0806
H62.44841.07823.52062.20933.36484.54632.63174.3481
H72.44843.52061.07823.36482.20934.54634.34812.6317
H83.61072.16163.34411.08062.21382.63174.34812.6352
H93.61073.34412.16162.21381.08064.34812.63172.6352

picture of Thiophene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C4 111.637 S1 C2 H6 120.072
S1 C3 C5 111.637 S1 C3 H7 120.072
C2 S1 C3 91.580 C2 C4 C5 112.573
C2 C4 H8 123.107 C3 C5 C4 112.573
C3 C5 H9 123.107 C4 C2 H6 128.291
C4 C5 H9 124.319 C5 C3 H7 128.291
C5 C4 H8 124.319
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability