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All results from a given calculation for C4H6S (Thiophene, 2,3-dihydro-)

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at G4
 hartrees
Energy at 0K-553.969551
Energy at 298.15K-553.963753
HF Energy-554.222006
Nuclear repulsion energy216.184468
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 B3LYP/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3229 3116 7.53      
2 A 3195 3083 1.77      
3 A 3134 3025 9.81      
4 A 3072 2965 37.76      
5 A 3056 2949 7.43      
6 A 2997 2892 37.53      
7 A 1649 1592 11.25      
8 A 1489 1437 0.70      
9 A 1474 1422 1.02      
10 A 1339 1292 0.29      
11 A 1322 1275 3.97      
12 A 1278 1233 14.36      
13 A 1201 1159 1.90      
14 A 1142 1102 0.71      
15 A 1121 1081 0.60      
16 A 1018 982 4.49      
17 A 994 959 2.50      
18 A 930 898 0.75      
19 A 916 884 2.40      
20 A 852 822 1.47      
21 A 786 758 20.21      
22 A 698 674 25.03      
23 A 680 656 18.41      
24 A 651 628 4.89      
25 A 502 485 0.42      
26 A 409 394 2.07      
27 A 145 140 1.08      

Unscaled Zero Point Vibrational Energy (zpe) 19638.0 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 18950.6 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 B3LYP/6-31G(2df,p)
ABC
0.22770 0.15526 0.09700

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.077 -1.274 0.184
H2 -0.049 -1.576 1.234
H3 0.112 -2.149 -0.439
C4 -1.401 -0.559 -0.154
H5 -2.215 -0.949 0.467
H6 -1.688 -0.745 -1.200
C7 0.117 1.282 0.072
H8 0.502 2.291 0.148
C9 -1.165 0.918 0.054
H10 -1.985 1.624 0.115
S11 1.279 -0.044 -0.079

Atom - Atom Distances (Å)
  C1 H2 H3 C4 H5 H6 C7 H8 C9 H10 S11
C11.09291.09031.54222.18112.18862.56573.61142.45023.47021.8497
H21.09291.77522.18822.38183.04963.08934.05372.97563.90352.4154
H31.09031.77522.21292.77042.40633.46874.49483.35824.35162.4338
C41.54222.18822.21291.09551.10022.39683.43991.51022.27562.7302
H52.18112.38182.77041.09551.76003.25104.23992.18112.60673.6504
H62.18863.04962.40631.10021.76002.99733.97802.14752.72533.2484
C72.56573.08933.46872.39683.25102.99731.08221.33242.12981.7696
H83.61144.05374.49483.43994.23993.97801.08222.16122.57492.4706
C92.45022.97563.35821.51022.18112.14751.33242.16121.08392.6296
H103.47023.90354.35162.27562.60672.72532.12982.57491.08393.6705
S111.84972.41542.43382.73023.65043.24841.76962.47062.62963.6705

picture of Thiophene, 2,3-dihydro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C4 H5 110.516 C1 C4 H6 110.811
C1 C4 C9 106.481 C1 S11 C7 90.285
H2 C1 H3 108.706 H2 C1 C4 110.902
H2 C1 S11 107.804 H3 C1 C4 113.056
H3 C1 S11 109.155 C4 C1 S11 107.069
C4 C9 C7 114.885 C4 C9 H10 121.609
H5 C4 H6 106.801 H5 C4 C9 112.620
H6 C4 C9 109.659 C7 C9 H10 123.377
H8 C7 C9 126.658 H8 C7 S11 118.259
C9 C7 S11 115.073
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.208      
2 H 0.135      
3 H 0.131      
4 C -0.232      
5 H 0.113      
6 H 0.118      
7 C -0.070      
8 H 0.123      
9 C -0.083      
10 H 0.101      
11 S -0.128      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.645 -0.335 0.201 1.691
CHELPG        
AIM        
ESP        


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 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 128.113
(<r2>)1/2 11.319