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All results from a given calculation for C5H6S (Thiophene, 3-methyl-)

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-589.168456
Energy at 298.15K-589.174679
Nuclear repulsion energy266.044955
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 B3PW91/3-21G
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' 3306 3178 0.86      
2 A' 3298 3170 0.81      
3 A' 3236 3111 2.01      
4 A' 3143 3021 10.39      
5 A' 3053 2935 20.79      
6 A' 1622 1559 1.57      
7 A' 1548 1488 12.97      
8 A' 1496 1438 11.27      
9 A' 1458 1401 2.13      
10 A' 1396 1341 5.96      
11 A' 1277 1227 4.91      
12 A' 1178 1133 2.80      
13 A' 1137 1093 3.56      
14 A' 1047 1006 9.97      
15 A' 951 914 2.00      
16 A' 818 786 23.93      
17 A' 777 747 2.42      
18 A' 652 627 2.26      
19 A' 539 518 1.53      
20 A' 321 309 1.18      
21 A" 3111 2990 14.46      
22 A" 1548 1488 9.40      
23 A" 1101 1058 11.92      
24 A" 943 906 1.40      
25 A" 815 784 91.34      
26 A" 737 709 19.86      
27 A" 615 591 16.70      
28 A" 449 431 0.18      
29 A" 234 225 3.84      
30 A" 120 115 0.19      

Unscaled Zero Point Vibrational Energy (zpe) 20961.5 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 20148.2 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 B3PW91/3-21G
ABC
0.22492 0.07956 0.05943

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.218 0.803 0.000
C2 -1.263 0.291 0.000
C3 0.000 0.992 0.000
C4 1.068 0.149 0.000
H5 -1.932 -1.805 0.000
C6 -1.150 -1.062 0.000
S7 0.570 -1.578 0.000
H8 1.148 2.817 0.000
H9 -0.387 2.917 0.888
H10 -0.387 2.917 -0.888
C11 0.102 2.496 0.000
H12 2.116 0.403 0.000

Atom - Atom Distances (Å)
  H1 C2 C3 C4 H5 C6 S7 H8 H9 H10 C11 H12
H11.08302.22563.35012.62342.14873.66613.92242.93392.93392.87174.3521
C21.08301.44522.33582.19931.35712.61783.49292.90762.90762.59403.3815
C32.22561.44521.36093.39912.35412.63242.15632.15482.15481.50742.1966
C43.35012.33581.36093.57972.52721.79692.66983.25093.25092.53831.0785
H52.62342.19933.39913.57971.07822.51215.55425.04665.04664.75734.6108
C62.14871.35712.35412.52721.07821.79624.50904.14754.14753.77183.5799
S73.66612.61782.63241.79692.51211.79624.43294.68054.68054.10072.5127
H83.92243.49292.15632.66985.55424.50904.43291.77621.77621.09442.6010
H92.93392.90762.15483.25095.04664.14754.68051.77621.77551.09743.6570
H102.93392.90762.15483.25095.04664.14754.68051.77621.77551.09743.6570
C112.87172.59401.50742.53834.75733.77184.10071.09441.09741.09742.9047
H124.35213.38152.19661.07854.61083.57992.51272.60103.65703.65702.9047

picture of Thiophene, 3-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C3 122.717 H1 C2 C6 123.025
C2 C3 C4 112.663 C2 C3 C11 122.919
C2 C6 H5 128.773 C2 C6 S7 111.476
C3 C2 C6 114.259 C3 C4 S7 112.211
C3 C4 H12 128.064 C3 C11 H8 110.948
C3 C11 H9 110.642 C3 C11 H10 110.642
C4 C3 C11 124.418 C4 S7 C6 89.391
H5 C6 S7 119.750 S7 C4 H12 119.725
H8 C11 H9 108.263 H8 C11 H10 108.263
H9 C11 H10 107.982
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.223      
2 C -0.162      
3 C 0.055      
4 C -0.600      
5 H 0.254      
6 C -0.589      
7 S 0.547      
8 H 0.224      
9 H 0.232      
10 H 0.232      
11 C -0.666      
12 H 0.248      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.534 1.261 0.000 1.369
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.072 1.921 0.000
y 1.921 -40.306 0.000
z 0.000 0.000 -47.219
Traceless
 xyz
x 5.691 1.921 0.000
y 1.921 2.339 0.000
z 0.000 0.000 -8.030
Polar
3z2-r2-16.060
x2-y22.234
xy1.921
xz0.000
yz0.000


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> 191.636
(<r2>)1/2 13.843