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

using model chemistry: B3LYP/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-41.918415
Energy at 298.15K-41.924517
Nuclear repulsion energy106.046524
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/CEP-121G
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 3241 3158 3.66      
2 A 3189 3108 14.31      
3 A 3170 3089 14.00      
4 A 3085 3006 23.10      
5 A 2988 2912 47.03      
6 A 1586 1545 3.86      
7 A 1516 1477 3.94      
8 A 1494 1455 19.32      
9 A 1441 1404 1.15      
10 A 1356 1322 1.00      
11 A 1258 1226 20.17      
12 A 1165 1135 14.24      
13 A 1106 1078 1.78      
14 A 1057 1030 4.68      
15 A 990 965 2.35      
16 A 826 805 10.56      
17 A 700 682 2.91      
18 A 616 601 3.79      
19 A 533 519 0.95      
20 A 298 290 1.05      
21 A 3060 2982 28.12      
22 A 1503 1465 11.80      
23 A 1075 1047 0.91      
24 A 936 912 0.21      
25 A 854 832 17.26      
26 A 707 689 96.17      
27 A 555 541 1.01      
28 A 447 435 5.39      
29 A 222 216 4.12      
30 A 111 109 0.39      

Unscaled Zero Point Vibrational Energy (zpe) 20541.5 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 20017.7 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/CEP-121G
ABC
0.16430 0.09915 0.06256

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.770 -2.169 0.000
C2 -0.956 -1.449 0.000
H3 -2.147 0.450 0.000
C4 -1.163 -0.010 0.000
C5 0.000 0.738 0.000
H6 0.812 -2.806 0.000
C7 0.372 -1.817 0.000
S8 1.461 -0.366 0.000
H9 -0.811 2.726 0.000
H10 0.721 2.589 0.886
H11 0.721 2.589 -0.886
C12 0.173 2.242 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 C5 H6 C7 S8 H9 H10 H11 C12
H11.08612.64612.24273.40312.65942.17023.69944.98755.44285.44284.8192
C21.08612.24251.45462.38722.22841.37792.64834.17784.46164.46163.8598
H32.64612.24251.08682.16644.40023.38973.69912.63883.68613.68612.9314
C42.24271.45461.08681.38233.42332.37142.64732.75803.32973.32972.6177
C53.40312.38722.16641.38233.63592.58271.83102.14682.17512.17511.5133
H62.65942.22844.40023.42333.63591.08192.52475.76505.46775.46775.0876
C72.17021.37793.38972.37142.58271.08191.81474.69494.50824.50824.0640
S83.69942.64833.69912.64731.83102.52471.81473.83653.17213.17212.9078
H94.98754.17782.63882.75802.14685.76504.69493.83651.77561.77561.0970
H105.44284.46163.68613.32972.17515.46774.50823.17211.77561.77291.0985
H115.44284.46163.68613.32972.17515.46774.50823.17211.77561.77291.0985
C124.81923.85982.93142.61771.51335.08764.06402.90781.09701.09851.0985

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 123.293 H1 C2 C7 123.034
C2 C4 H3 123.216 C2 C4 C5 114.576
C2 C7 H6 129.514 C2 C7 S8 111.368
H3 C4 C5 122.208 C4 C2 C7 113.672
C4 C5 S8 110.170 C4 C5 C12 129.327
C5 S8 C7 90.214 C5 C12 H9 109.623
C5 C12 H10 111.789 C5 C12 H11 111.789
H6 C7 S8 119.119 S8 C5 C12 120.503
H9 C12 H10 107.943 H9 C12 H11 107.943
H10 C12 H11 107.597
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.171      
2 C -0.005      
3 H 0.183      
4 C -0.033      
5 C -0.156      
6 H 0.174      
7 C -0.491      
8 S 0.286      
9 H 0.173      
10 H 0.172      
11 H 0.172      
12 C -0.646      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.897 0.501 0.000 1.028
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.847 0.007 0.000
y 0.007 -36.380 0.000
z 0.000 0.000 -46.490
Traceless
 xyz
x -0.412 0.007 0.000
y 0.007 7.789 0.000
z 0.000 0.000 -7.376
Polar
3z2-r2-14.753
x2-y2-5.467
xy0.007
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.092 0.249 0.000
y 0.249 12.850 0.000
z 0.000 0.000 5.754


<r2> (average value of r2) Å2
<r2> 138.484
(<r2>)1/2 11.768