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All results from a given calculation for C4H4S (Thiophene)

using model chemistry: MP2/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-552.192314
Energy at 298.15K-552.196720
HF Energy-551.378830
Nuclear repulsion energy203.432814
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/Def2TZVPP
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 3289 3129 1.73      
2 A1 3259 3101 1.04      
3 A1 1449 1379 4.94      
4 A1 1389 1321 1.04      
5 A1 1098 1044 2.59      
6 A1 1075 1023 4.41      
7 A1 879 836 19.87      
8 A1 619 589 0.03      
9 A2 902 858 0.00      
10 A2 677 644 0.00      
11 A2 577 549 0.00      
12 B1 865 823 0.00      
13 B1 734 698 130.61      
14 B1 467 444 1.58      
15 B2 3286 3127 0.27      
16 B2 3246 3088 2.52      
17 B2 1517 1443 0.01      
18 B2 1277 1215 10.16      
19 B2 1098 1045 4.48      
20 B2 898 854 0.87      
21 B2 774 737 0.43      

Unscaled Zero Point Vibrational Energy (zpe) 14686.4 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 13974.2 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/Def2TZVPP
ABC
0.27115 0.18154 0.10874

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.191
C2 0.000 1.230 -0.003
C3 0.000 -1.230 -0.003
C4 0.000 0.711 -1.272
C5 0.000 -0.711 -1.272
H6 0.000 2.266 0.292
H7 0.000 -2.266 0.292
H8 0.000 1.314 -2.167
H9 0.000 -1.314 -2.167

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9
S11.71411.71412.56352.56352.43752.43753.60633.6063
C21.71412.45921.37052.31861.07743.50772.16573.3397
C31.71412.45922.31861.37053.50771.07743.33972.1657
C42.56351.37052.31861.42232.20513.36271.07962.2144
C52.56352.31861.37051.42233.36272.20512.21441.0796
H62.43751.07743.50772.20513.36274.53132.63714.3433
H72.43753.50771.07743.36272.20514.53134.34332.6371
H83.60632.16573.33971.07962.21442.63714.34332.6284
H93.60633.33972.16572.21441.07964.34332.63712.6284

picture of Thiophene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C4 111.938 S1 C2 H6 119.921
S1 C3 C5 111.938 S1 C3 H7 119.921
C2 S1 C3 91.667 C2 C4 C5 112.228
C2 C4 H8 123.813 C3 C5 C4 112.228
C3 C5 H9 123.813 C4 C2 H6 128.141
C4 C5 H9 123.959 C5 C3 H7 128.141
C5 C4 H8 123.959
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability