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, 2-methyl-)

using model chemistry: B3LYP/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-204.191632
Energy at 298.15K-204.197745
Nuclear repulsion energy187.024542
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/LANL2DZ
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 3301 3173 1.99      
2 A 3245 3119 6.78      
3 A 3226 3101 8.99      
4 A 3139 3017 19.30      
5 A 3038 2920 35.27      
6 A 1610 1548 4.58      
7 A 1525 1466 3.13      
8 A 1512 1454 21.98      
9 A 1448 1391 5.79      
10 A 1371 1317 0.38      
11 A 1271 1222 22.26      
12 A 1186 1140 15.32      
13 A 1117 1074 3.39      
14 A 1071 1030 8.24      
15 A 998 960 2.00      
16 A 836 804 11.75      
17 A 707 680 3.35      
18 A 621 596 3.85      
19 A 544 523 0.97      
20 A 302 291 1.30      
21 A 3111 2990 25.02      
22 A 1505 1447 15.18      
23 A 1080 1038 4.40      
24 A 949 913 0.29      
25 A 866 832 17.78      
26 A 724 696 115.26      
27 A 577 555 0.06      
28 A 462 444 9.17      
29 A 229 220 5.04      
30 A 108 104 0.46      

Unscaled Zero Point Vibrational Energy (zpe) 20838.8 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 20030.3 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/LANL2DZ
ABC
0.16617 0.10031 0.06329

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.462 -2.308 0.000
C2 -0.727 -1.509 0.000
H3 -2.104 0.249 0.000
C4 -1.078 -0.106 0.000
C5 0.000 0.751 0.000
H6 1.164 -2.675 0.000
C7 0.628 -1.736 0.000
S8 1.552 -0.192 0.000
H9 -1.010 2.638 0.000
H10 0.526 2.658 0.886
H11 0.526 2.658 -0.886
C12 0.017 2.255 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 C5 H6 C7 S8 H9 H10 H11 C12
H11.08492.63632.23513.39032.65132.16673.68264.96635.42205.42204.7967
C21.08492.23361.44692.37482.22121.37412.63284.15724.44144.44143.8376
H32.63632.23361.08552.16294.38503.37743.68272.62743.67503.67502.9195
C42.23511.44691.08551.37723.40972.36022.63182.74473.31653.31652.6028
C53.39032.37482.16291.37723.61832.56581.81642.14002.16762.16761.5041
H62.65132.22124.38503.40973.61831.08052.51305.74035.44365.44365.0616
C72.16671.37413.37742.36022.56581.08051.79994.67114.48424.48424.0381
S83.68262.63283.68272.63181.81642.51301.79993.81753.15613.15612.8887
H94.96634.15722.62742.74472.14005.74034.67113.81751.77341.77341.0962
H105.42204.44143.67503.31652.16765.44364.48423.15611.77341.77141.0982
H115.42204.44143.67503.31652.16765.44364.48423.15611.77341.77141.0982
C124.79673.83762.91952.60281.50415.06164.03812.88871.09621.09821.0982

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 123.326 H1 C2 C7 123.126
C2 C4 H3 123.135 C2 C4 C5 114.443
C2 C7 H6 129.233 C2 C7 S8 111.387
H3 C4 C5 122.422 C4 C2 C7 113.548
C4 C5 S8 110.233 C4 C5 C12 129.150
C5 S8 C7 90.388 C5 C12 H9 109.772
C5 C12 H10 111.861 C5 C12 H11 111.861
H6 C7 S8 119.380 S8 C5 C12 120.618
H9 C12 H10 107.827 H9 C12 H11 107.827
H10 C12 H11 107.518
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.238      
2 C -0.125      
3 H 0.246      
4 C -0.276      
5 C -0.004      
6 H 0.252      
7 C -0.494      
8 S 0.195      
9 H 0.221      
10 H 0.224      
11 H 0.224      
12 C -0.699      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.943 0.447 0.000 1.044
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.453 -0.537 0.000
y -0.537 -35.912 0.000
z 0.000 0.000 -46.330
Traceless
 xyz
x -0.331 -0.537 0.000
y -0.537 7.979 0.000
z 0.000 0.000 -7.647
Polar
3z2-r2-15.295
x2-y2-5.540
xy-0.537
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.977 0.099 0.000
y 0.099 11.930 0.000
z 0.000 0.000 4.376


<r2> (average value of r2) Å2
<r2> 163.374
(<r2>)1/2 12.782