return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B3LYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/3-21G
 hartrees
Energy at 0K-551.393390
Energy at 298.15K-551.400168
Nuclear repulsion energy212.082898
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/3-21G
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 3269 3154 4.24      
2 A 3209 3096 2.28      
3 A 3189 3077 6.49      
4 A 3120 3011 20.63      
5 A 3087 2979 9.05      
6 A 3035 2928 24.92      
7 A 1663 1605 9.84      
8 A 1539 1485 1.99      
9 A 1525 1471 3.56      
10 A 1356 1308 7.19      
11 A 1350 1302 2.11      
12 A 1314 1268 17.77      
13 A 1231 1188 1.85      
14 A 1182 1140 0.35      
15 A 1158 1117 0.17      
16 A 1015 980 3.10      
17 A 993 958 3.45      
18 A 962 928 2.80      
19 A 899 867 4.12      
20 A 854 824 2.29      
21 A 770 743 17.15      
22 A 702 678 65.51      
23 A 658 635 13.72      
24 A 604 583 4.08      
25 A 491 473 0.66      
26 A 402 387 2.75      
27 A 130 126 1.28      

Unscaled Zero Point Vibrational Energy (zpe) 19852.0 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 19155.2 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 B3LYP/3-21G
ABC
0.21968 0.14815 0.09290

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.107 -1.308 0.190
H2 -0.075 -1.592 1.243
H3 0.086 -2.168 -0.448
C4 -1.421 -0.565 -0.161
H5 -2.241 -0.938 0.463
H6 -1.688 -0.743 -1.212
C7 0.089 1.316 0.076
H8 0.459 2.327 0.160
C9 -1.181 0.923 0.051
H10 -2.014 1.614 0.113
S11 1.325 -0.044 -0.078

Atom - Atom Distances (Å)
  C1 H2 H3 C4 H5 H6 C7 H8 C9 H10 S11
C11.09031.08871.54992.18222.18792.63453.67952.48063.49001.9292
H21.09031.79402.19952.39283.05793.13774.10062.99513.91292.4697
H31.08871.79402.21912.78482.40033.52404.55203.37844.36232.4874
C41.54992.19952.21911.09571.09932.42393.46421.52212.27432.7959
H52.18222.39282.78481.09571.77473.26514.24762.18122.58563.7153
H62.18793.05792.40031.09931.77473.01023.99032.15182.72383.2945
C72.63453.13773.52402.42393.26513.01021.07971.33012.12471.8438
H83.67954.10064.55203.46424.24763.99031.07972.16172.57442.5353
C92.48062.99513.37841.52212.18122.15181.33012.16171.08362.6891
H103.49003.91294.36232.27432.58562.72382.12472.57441.08363.7325
S111.92922.46972.48742.79593.71533.29451.84382.53532.68913.7325

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 109.953 C1 C4 H6 110.187
C1 C4 C9 107.696 C1 S11 C7 88.545
H2 C1 H3 110.841 H2 C1 C4 111.645
H2 C1 S11 106.414 H3 C1 C4 113.336
H3 C1 S11 107.742 C4 C1 S11 106.443
C4 C9 C7 116.228 C4 C9 H10 120.649
H5 C4 H6 107.903 H5 C4 C9 111.827
H6 C4 C9 109.279 C7 C9 H10 123.018
H8 C7 C9 127.238 H8 C7 S11 117.890
C9 C7 S11 114.865
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.598     -0.158
2 H 0.239     0.119
3 H 0.234     0.125
4 C -0.419     -0.000
5 H 0.212     0.052
6 H 0.220     0.058
7 C -0.487     -0.280
8 H 0.223     0.236
9 C -0.129     -0.110
10 H 0.198     0.114
11 S 0.307     -0.156


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.029 -0.340 0.215 2.069
CHELPG        
AIM        
ESP -2.001 -0.360 0.248 2.048


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.777 0.540 0.114
y 0.540 -33.320 0.163
z 0.114 0.163 -40.213
Traceless
 xyz
x -2.010 0.540 0.114
y 0.540 6.175 0.163
z 0.114 0.163 -4.165
Polar
3z2-r2-8.329
x2-y2-5.456
xy0.540
xz0.114
yz0.163


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.714 0.230 -0.162
y 0.230 8.214 0.119
z -0.162 0.119 4.473


<r2> (average value of r2) Å2
<r2> 132.615
(<r2>)1/2 11.516