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

using model chemistry: PBEPBE/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 PBEPBE/3-21G
 hartrees
Energy at 0K-550.992280
Energy at 298.15K-550.998968
Nuclear repulsion energy211.651204
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 PBEPBE/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 3198 3169 3.28      
2 A 3143 3114 1.65      
3 A 3117 3088 5.72      
4 A 3043 3016 20.92      
5 A 3019 2992 5.58      
6 A 2958 2932 24.82      
7 A 1606 1591 11.88      
8 A 1484 1471 2.62      
9 A 1470 1457 4.21      
10 A 1311 1299 6.95      
11 A 1304 1292 1.00      
12 A 1269 1258 19.02      
13 A 1189 1178 1.91      
14 A 1144 1134 0.36      
15 A 1119 1108 0.51      
16 A 991 982 4.34      
17 A 972 964 2.35      
18 A 907 899 2.72      
19 A 890 882 4.77      
20 A 836 828 3.26      
21 A 750 743 19.32      
22 A 673 667 67.29      
23 A 644 638 16.03      
24 A 598 592 3.82      
25 A 478 473 0.63      
26 A 390 387 3.28      
27 A 140 139 1.23      

Unscaled Zero Point Vibrational Energy (zpe) 19322.3 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 19146.4 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 PBEPBE/3-21G
ABC
0.21927 0.14746 0.09288

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.112 -1.303 0.208
H2 -0.090 -1.552 1.280
H3 0.088 -2.190 -0.407
C4 -1.420 -0.564 -0.177
H5 -2.262 -0.953 0.423
H6 -1.654 -0.733 -1.248
C7 0.097 1.315 0.081
H8 0.476 2.332 0.169
C9 -1.187 0.924 0.057
H10 -2.023 1.624 0.123
S11 1.325 -0.047 -0.085

Atom - Atom Distances (Å)
  C1 H2 H3 C4 H5 H6 C7 H8 C9 H10 S11
C11.10051.09841.55012.18872.19602.62883.68182.47703.49601.9306
H21.10051.81252.20622.41093.08363.11314.07902.97153.89392.4754
H31.09841.81252.22922.78272.42153.53864.57483.39684.39112.4950
C41.55012.20622.22921.10511.10942.42823.47821.52432.28922.7942
H52.18872.41092.78271.10511.79203.28984.28332.19352.60463.7342
H62.19603.08362.42151.10941.79203.00443.99232.16082.75163.2708
C72.62883.11313.53862.42823.28983.00441.08881.34222.14291.8415
H83.68184.07904.57483.47824.28333.99231.08882.18142.59772.5389
C92.47702.97153.39681.52432.19352.16081.34222.18141.09232.6969
H103.49603.89394.39112.28922.60462.75162.14292.59771.09233.7477
S111.93062.47542.49502.79423.73423.27081.84152.53892.69693.7477

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 109.903 C1 C4 H6 110.220
C1 C4 C9 107.348 C1 S11 C7 88.330
H2 C1 H3 111.028 H2 C1 C4 111.555
H2 C1 S11 106.259 H3 C1 C4 113.535
H3 C1 S11 107.727 C4 C1 S11 106.278
C4 C9 C7 115.650 C4 C9 H10 121.178
H5 C4 H6 108.040 H5 C4 C9 112.086
H6 C4 C9 109.247 C7 C9 H10 123.011
H8 C7 C9 127.311 H8 C7 S11 117.787
C9 C7 S11 114.894
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.630      
2 H 0.254      
3 H 0.247      
4 C -0.453      
5 H 0.227      
6 H 0.235      
7 C -0.509      
8 H 0.234      
9 C -0.137      
10 H 0.208      
11 S 0.323      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.948 -0.383 0.217 1.997
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.508 0.585 0.115
y 0.585 -33.230 0.175
z 0.115 0.175 -40.233
Traceless
 xyz
x -1.777 0.585 0.115
y 0.585 6.140 0.175
z 0.115 0.175 -4.364
Polar
3z2-r2-8.728
x2-y2-5.278
xy0.585
xz0.115
yz0.175


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.927 0.146 -0.170
y 0.146 8.369 0.144
z -0.170 0.144 4.596


<r2> (average value of r2) Å2
<r2> 132.814
(<r2>)1/2 11.524