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

using model chemistry: HF/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/CEP-121G
 hartrees
Energy at 0K-35.263551
Energy at 298.15K-35.270660
Nuclear repulsion energy85.995196
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 HF/CEP-121G
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 3396 3099 13.39      
2 A 3337 3045 7.27      
3 A 3312 3022 23.41      
4 A 3233 2950 62.15      
5 A 3210 2930 19.87      
6 A 3157 2881 57.15      
7 A 1765 1611 10.84      
8 A 1637 1494 1.91      
9 A 1615 1474 2.56      
10 A 1473 1344 1.52      
11 A 1441 1315 6.17      
12 A 1399 1277 27.05      
13 A 1331 1215 3.25      
14 A 1255 1145 1.79      
15 A 1221 1114 0.19      
16 A 1122 1024 6.85      
17 A 1090 994 4.40      
18 A 1058 966 2.66      
19 A 969 885 4.37      
20 A 920 840 1.41      
21 A 838 765 25.15      
22 A 778 710 75.29      
23 A 729 665 13.51      
24 A 677 618 3.08      
25 A 535 488 0.46      
26 A 432 394 2.05      
27 A 129 117 1.69      

Unscaled Zero Point Vibrational Energy (zpe) 21029.3 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 19189.3 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 HF/CEP-121G
ABC
0.22083 0.15067 0.09373

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.169 -0.587 0.149
H2 -1.460 -0.752 1.176
H3 -1.915 -1.000 -0.513
C4 -0.880 0.912 -0.128
H5 -1.460 1.537 0.545
H6 -1.172 1.177 -1.142
C7 1.380 0.046 0.046
H8 2.449 0.004 0.119
C9 0.617 1.139 0.048
H10 1.021 2.132 0.132
S11 0.457 -1.523 -0.130

Atom - Atom Distances (Å)
  C1 H2 H3 C4 H5 H6 C7 H8 C9 H10 S11
C11.08081.07931.55122.17942.18562.62873.66572.48533.49111.8968
H21.08081.76672.19262.37433.02993.16004.11953.02743.94562.4447
H31.07931.76672.20822.78612.38483.50184.52183.36134.34122.4586
C41.55122.19262.20821.08581.08852.42663.45871.52382.27382.7776
H52.17942.37432.78611.08581.74923.24624.21942.17182.58463.6727
H62.18563.02992.38481.08851.74923.03384.00932.14872.71063.3115
C72.62873.16003.50182.42663.24623.03381.07161.33342.11841.8284
H83.66574.11954.52183.45874.21944.00931.07162.15592.56182.5219
C92.48533.02743.36131.52382.17182.14871.33342.15591.07552.6723
H103.49113.94564.34122.27382.58462.71062.11842.56181.07553.7070
S111.89682.44472.45862.77763.67273.31151.82842.52192.67233.7070

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 110.229 C1 C4 H6 110.554
C1 C4 C9 107.846 C1 S11 C7 89.743
H2 C1 H3 109.746 H2 C1 C4 111.577
H2 C1 S11 107.168 H3 C1 C4 112.943
H3 C1 S11 108.246 C4 C1 S11 106.902
C4 C9 C7 116.112 C4 C9 H10 121.068
H5 C4 H6 107.117 H5 C4 C9 111.559
H6 C4 C9 109.554 C7 C9 H10 122.784
H8 C7 C9 127.041 H8 C7 S11 118.479
C9 C7 S11 114.474
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.533      
2 H 0.190      
3 H 0.183      
4 C -0.293      
5 H 0.152      
6 H 0.157      
7 C -0.474      
8 H 0.201      
9 C -0.001      
10 H 0.194      
11 S 0.223      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.082 2.153 0.299 2.428
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.182 1.785 0.176
y 1.785 -40.234 -0.260
z 0.176 -0.260 -40.179
Traceless
 xyz
x 7.024 1.785 0.176
y 1.785 -3.553 -0.260
z 0.176 -0.260 -3.471
Polar
3z2-r2-6.942
x2-y27.052
xy1.785
xz0.176
yz-0.260


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.276 -0.890 -0.051
y -0.890 10.151 0.238
z -0.051 0.238 5.591


<r2> (average value of r2) Å2
<r2> 96.171
(<r2>)1/2 9.807