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All results from a given calculation for C5H6S (Thiophene, 2-methyl-)

using model chemistry: M06-2X/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 M06-2X/3-21G*
 hartrees
Energy at 0K-589.280588
Energy at 298.15K-589.286836
HF Energy-589.280588
Nuclear repulsion energy272.331999
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 M06-2X/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' 3293 3119 1.27      
2 A' 3260 3088 0.69      
3 A' 3241 3070 2.75      
4 A' 3133 2968 4.99      
5 A' 3057 2896 13.41      
6 A' 1616 1530 2.36      
7 A' 1554 1472 5.66      
8 A' 1502 1423 13.19      
9 A' 1468 1390 4.78      
10 A' 1409 1335 0.16      
11 A' 1308 1239 14.15      
12 A' 1197 1134 17.85      
13 A' 1148 1087 1.79      
14 A' 1078 1021 2.00      
15 A' 1024 970 0.55      
16 A' 879 832 15.27      
17 A' 772 731 1.06      
18 A' 686 649 2.34      
19 A' 571 541 1.03      
20 A' 306 290 1.01      
21 A" 3116 2951 6.93      
22 A" 1550 1468 12.57      
23 A" 1105 1046 3.11      
24 A" 985 933 1.13      
25 A" 893 846 4.24      
26 A" 771 731 99.24      
27 A" 600 568 0.11      
28 A" 498 472 9.34      
29 A" 237 225 4.05      
30 A" 62 59 0.17      

Unscaled Zero Point Vibrational Energy (zpe) 21158.7 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 20041.5 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 M06-2X/3-21G*
ABC
0.17527 0.10350 0.06588

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.383 -1.559 0.000
C2 -1.436 -1.040 0.000
H3 -2.138 1.077 0.000
C4 -1.302 0.391 0.000
C5 0.000 0.807 0.000
H6 -0.042 -2.736 0.000
C7 -0.227 -1.674 0.000
S8 1.084 -0.549 0.000
H9 -0.331 2.914 0.000
H10 1.124 2.425 0.887
H11 1.124 2.425 -0.887
C12 0.515 2.222 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 C5 H6 C7 S8 H9 H10 H11 C12
H11.07992.64792.23013.35812.62022.15923.61164.92165.38145.38144.7640
C21.07992.23071.43802.33962.19511.36502.56784.10594.39864.39863.8010
H32.64792.23071.08082.15494.35103.34943.60912.57663.63923.63922.8892
C42.23011.43801.08081.36703.37172.32832.56512.70323.28773.28772.5793
C53.35812.33962.15491.36703.54262.49061.73572.13332.16072.16071.5059
H62.62022.19514.35103.37173.54261.07812.45995.65725.36435.36434.9887
C72.15921.36503.34942.32832.49061.07811.72754.58894.40544.40543.9654
S83.61162.56783.60912.56511.73572.45991.72753.74093.10323.10322.8284
H94.92164.10592.57662.70322.13335.65724.58893.74091.77331.77331.0932
H105.38144.39863.63923.28772.16075.36434.40543.10321.77331.77491.0953
H115.38144.39863.63923.28772.16075.36434.40543.10321.77331.77491.0953
C124.76403.80102.88922.57931.50594.98873.96542.82841.09321.09531.0953

picture of Thiophene, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C4 124.060 H1 C2 C7 123.631
C2 C4 H3 124.044 C2 C4 C5 113.017
C2 C7 H6 127.529 C2 C7 S8 111.729
H3 C4 C5 122.939 C4 C2 C7 112.309
C4 C5 S8 110.974 C4 C5 C12 127.681
C5 S8 C7 91.971 C5 C12 H9 109.298
C5 C12 H10 111.357 C5 C12 H11 111.357
H6 C7 S8 120.742 S8 C5 C12 121.345
H9 C12 H10 108.248 H9 C12 H11 108.248
H10 C12 H11 108.231
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.216      
2 C -0.208      
3 H 0.208      
4 C -0.201      
5 C -0.271      
6 H 0.238      
7 C -0.456      
8 S 0.412      
9 H 0.220      
10 H 0.224      
11 H 0.224      
12 C -0.607      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.394 0.529 0.000 0.660
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.901 0.698 0.000
y 0.698 -36.872 0.000
z 0.000 0.000 -47.079
Traceless
 xyz
x 1.075 0.698 0.000
y 0.698 7.118 0.000
z 0.000 0.000 -8.193
Polar
3z2-r2-16.386
x2-y2-4.029
xy0.698
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.470 0.352 0.000
y 0.352 10.721 0.000
z 0.000 0.000 4.129


<r2> (average value of r2) Å2
<r2> 177.600
(<r2>)1/2 13.327