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

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-553.227624
Energy at 298.15K-553.234344
HF Energy-552.525446
Nuclear repulsion energy215.850768
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 3245 3076 13.08      
2 A1 3098 2937 0.05      
3 A1 1692 1604 7.76      
4 A1 1513 1434 5.23      
5 A1 1327 1258 0.71      
6 A1 1155 1095 0.28      
7 A1 977 926 0.06      
8 A1 738 700 1.77      
9 A1 521 494 0.10      
10 A2 3149 2984 0.00      
11 A2 1142 1083 0.00      
12 A2 987 936 0.00      
13 A2 918 870 0.00      
14 A2 358 339 0.00      
15 B1 3150 2986 15.44      
16 B1 1133 1074 16.93      
17 B1 926 878 0.57      
18 B1 654 620 48.89      
19 B1 65 61 3.64      
20 B2 3220 3052 2.16      
21 B2 3099 2937 57.88      
22 B2 1507 1428 0.01      
23 B2 1379 1307 3.10      
24 B2 1287 1220 10.93      
25 B2 995 943 5.08      
26 B2 828 785 0.68      
27 B2 659 624 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 19859.0 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 18824.3 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
0.22122 0.15919 0.09590

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 1.250
C2 0.000 1.347 -0.001
C3 0.000 -1.347 -0.001
C4 0.000 0.667 -1.334
C5 0.000 -0.667 -1.334
H6 -0.885 1.972 0.124
H7 0.885 1.972 0.124
H8 0.885 -1.972 0.124
H9 -0.885 -1.972 0.124
H10 0.000 1.258 -2.242
H11 0.000 -1.258 -2.242

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.83821.83822.66932.66932.43712.43712.43712.43713.71203.7120
C21.83822.69321.49692.41481.09091.09093.43663.43662.24293.4361
C31.83822.69322.41481.49693.43663.43661.09091.09093.43612.2429
C42.66931.49692.41481.33312.14822.14823.14193.14191.08332.1279
C52.66932.41481.49691.33313.14193.14192.14822.14822.12791.0833
H62.43711.09093.43662.14823.14191.77064.32263.94332.62524.1004
H72.43711.09093.43662.14823.14191.77063.94334.32262.62524.1004
H82.43713.43661.09093.14192.14824.32263.94331.77064.10042.6252
H92.43713.43661.09093.14192.14823.94334.32261.77064.10042.6252
H103.71202.24293.43611.08332.12792.62522.62524.10044.10042.5161
H113.71203.43612.24292.12791.08334.10044.10042.62522.62522.5161

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 105.878 S1 C2 H6 109.981
S1 C2 H7 109.981 S1 C3 C5 105.878
S1 C3 H8 109.981 S1 C3 H9 109.981
C2 S1 C3 94.205 C2 C4 C5 117.019
C2 C4 H10 119.889 C3 C5 C4 117.019
C3 C5 H11 119.889 C4 C2 H6 111.251
C4 C2 H7 111.251 C4 C5 H11 123.092
C5 C3 H8 111.251 C5 C3 H9 111.251
C5 C4 H10 123.092 H6 C2 H7 108.487
H8 C3 H9 108.487
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability