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 C5H6S (Thiophene, 3-methyl-)

using model chemistry: B3LYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/6-31G
 hartrees
Energy at 0K-592.240900
Energy at 298.15K-592.247095
Nuclear repulsion energy265.223490
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
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' 3305 3180 1.04      
2 A' 3296 3171 1.18      
3 A' 3228 3105 6.62      
4 A' 3132 3013 18.31      
5 A' 3039 2923 35.81      
6 A' 1629 1567 1.52      
7 A' 1542 1483 12.66      
8 A' 1504 1447 9.84      
9 A' 1466 1410 0.71      
10 A' 1411 1357 4.36      
11 A' 1280 1231 6.72      
12 A' 1192 1146 2.93      
13 A' 1139 1096 2.57      
14 A' 1046 1007 8.75      
15 A' 955 919 2.22      
16 A' 816 785 21.35      
17 A' 778 748 2.31      
18 A' 648 623 2.17      
19 A' 535 514 1.82      
20 A' 325 313 0.94      
21 A" 3094 2977 24.76      
22 A" 1531 1473 8.28      
23 A" 1101 1059 7.21      
24 A" 929 894 0.19      
25 A" 796 766 85.93      
26 A" 720 693 7.07      
27 A" 616 593 13.67      
28 A" 445 429 0.05      
29 A" 234 225 2.50      
30 A" 120 116 0.11      

Unscaled Zero Point Vibrational Energy (zpe) 20925.4 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 20130.2 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/6-31G
ABC
0.22400 0.07895 0.05902

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.221 0.810 0.000
C2 -1.266 0.297 0.000
C3 0.000 0.999 0.000
C4 1.069 0.147 0.000
H5 -1.935 -1.808 0.000
C6 -1.157 -1.061 0.000
S7 0.568 -1.587 0.000
H8 1.157 2.824 0.000
H9 -0.373 2.938 0.883
H10 -0.373 2.938 -0.883
C11 0.111 2.502 0.000
H12 2.121 0.387 0.000

Atom - Atom Distances (Å)
  H1 C2 C3 C4 H5 C6 S7 H8 H9 H10 C11 H12
H11.08422.22923.35632.63342.15203.67683.93332.95402.95402.88204.3628
C21.08421.44762.33982.20881.36212.62853.50132.92462.92462.60033.3882
C32.22921.44761.36683.40922.36252.64672.16142.16332.16331.50772.2075
C43.35632.33981.36683.58432.53281.80442.67883.26333.26332.54261.0790
H52.63342.20883.40923.58431.07862.51255.56965.07415.07414.77164.6119
C62.15201.36212.36252.53281.07861.80324.52224.16974.16973.78233.5837
S73.67682.62852.64671.80442.51251.80324.44994.70484.70484.11412.5113
H83.93333.50132.16142.67885.56964.52224.44991.77011.77011.09402.6212
H92.95402.92462.16333.26335.07414.16974.70481.77011.76651.09753.6753
H102.95402.92462.16333.26335.07414.16974.70481.77011.76651.09753.6753
C112.88202.60031.50772.54264.77163.78234.11411.09401.09751.09752.9178
H124.36283.38822.20751.07904.61193.58372.51132.62123.67533.67532.9178

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 122.765 H1 C2 C6 122.811
C2 C3 C4 112.451 C2 C3 C11 123.241
C2 C6 H5 129.273 C2 C6 S7 111.523
C3 C2 C6 114.424 C3 C4 S7 112.414
C3 C4 H12 128.607 C3 C11 H8 111.358
C3 C11 H9 111.304 C3 C11 H10 111.304
C4 C3 C11 124.308 C4 S7 C6 89.189
H5 C6 S7 119.204 S7 C4 H12 118.979
H8 C11 H9 107.749 H8 C11 H10 107.749
H9 C11 H10 107.176
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.139      
2 C -0.041      
3 C 0.180      
4 C -0.508      
5 H 0.167      
6 C -0.472      
7 S 0.388      
8 H 0.145      
9 H 0.154      
10 H 0.154      
11 C -0.467      
12 H 0.161      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.570 1.296 0.000 1.415
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.635 1.964 0.000
y 1.964 -41.056 0.000
z 0.000 0.000 -46.323
Traceless
 xyz
x 5.055 1.964 0.000
y 1.964 1.423 0.000
z 0.000 0.000 -6.477
Polar
3z2-r2-12.955
x2-y22.421
xy1.964
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.239 -0.505 0.000
y -0.505 12.330 0.000
z 0.000 0.000 4.616


<r2> (average value of r2) Å2
<r2> 192.874
(<r2>)1/2 13.888