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All results from a given calculation for C4H4S (Thiophene)

using model chemistry: MP2/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-551.984070
Energy at 298.15K-551.988433
HF Energy-551.318452
Nuclear repulsion energy201.210230
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/cc-pVDZ
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 3293 3137 2.25      
2 A1 3266 3111 1.42      
3 A1 1463 1393 9.25      
4 A1 1399 1332 0.90      
5 A1 1087 1036 4.06      
6 A1 1071 1020 2.53      
7 A1 870 829 22.33      
8 A1 615 586 0.03      
9 A2 884 842 0.00      
10 A2 670 638 0.00      
11 A2 561 534 0.00      
12 B1 852 812 0.04      
13 B1 724 690 115.30      
14 B1 452 431 1.89      
15 B2 3290 3134 0.01      
16 B2 3252 3097 3.15      
17 B2 1535 1462 0.05      
18 B2 1269 1208 11.69      
19 B2 1092 1040 4.32      
20 B2 890 848 0.53      
21 B2 769 732 0.16      

Unscaled Zero Point Vibrational Energy (zpe) 14651.2 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 13955.3 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/cc-pVDZ
ABC
0.26589 0.17725 0.10635

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.199
C2 0.000 1.242 -0.000
C3 0.000 -1.242 -0.000
C4 0.000 0.713 -1.283
C5 0.000 -0.713 -1.283
H6 0.000 2.292 0.296
H7 0.000 -2.292 0.296
H8 0.000 1.333 -2.184
H9 0.000 -1.333 -2.184

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9
S11.72631.72632.58272.58272.46332.46333.63583.6358
C21.72632.48391.38772.33871.09113.54632.18553.3759
C31.72632.48392.33871.38773.54631.09113.37592.1855
C42.58271.38772.33871.42682.23313.39521.09292.2354
C52.58272.33871.38771.42683.39522.23312.23541.0929
H62.46331.09113.54632.23313.39524.58392.65924.3919
H72.46333.54631.09113.39522.23314.58394.39192.6592
H83.63582.18553.37591.09292.23542.65924.39192.6653
H93.63583.37592.18552.23541.09294.39192.65922.6653

picture of Thiophene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C4 111.607 S1 C2 H6 120.240
S1 C3 C5 111.607 S1 C3 H7 120.240
C2 S1 C3 92.012 C2 C4 C5 112.387
C2 C4 H8 123.100 C3 C5 C4 112.387
C3 C5 H9 123.100 C4 C2 H6 128.153
C4 C5 H9 124.513 C5 C3 H7 128.153
C5 C4 H8 124.513
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability