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: HF/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/daug-cc-pVTZ
 hartrees
Energy at 0K-590.434230
Energy at 298.15K-590.440779
HF Energy-590.434230
Nuclear repulsion energy274.299921
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 HF/daug-cc-pVTZ
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' 3394 3070 1.88      
2 A' 3355 3035 7.94      
3 A' 3337 3019 9.54      
4 A' 3241 2931 19.14      
5 A' 3166 2864 35.66      
6 A' 1737 1571 3.03      
7 A' 1620 1466 7.85      
8 A' 1607 1454 18.38      
9 A' 1540 1393 2.14      
10 A' 1494 1352 0.32      
11 A' 1379 1247 8.97      
12 A' 1253 1133 14.06      
13 A' 1194 1080 0.73      
14 A' 1119 1012 0.67      
15 A' 1071 969 1.85      
16 A' 911 824 16.78      
17 A' 798 722 0.71      
18 A' 709 641 3.80      
19 A' 586 530 0.72      
20 A' 324 293 1.02      
21 A" 3215 2908 18.69      
22 A" 1598 1445 7.58      
23 A" 1161 1050 0.23      
24 A" 1048 948 0.11      
25 A" 949 859 12.88      
26 A" 799 723 85.18      
27 A" 618 559 0.00      
28 A" 519 469 4.94      
29 A" 254 230 3.55      
30 A" 122 110 0.21      

Unscaled Zero Point Vibrational Energy (zpe) 22057.8 cm-1
Scaled (by 0.9046) Zero Point Vibrational Energy (zpe) 19953.5 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 HF/daug-cc-pVTZ
ABC
0.17931 0.10424 0.06672

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/daug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.369 -1.535 0.000
C2 -1.423 -1.031 0.000
H3 -2.111 1.074 0.000
C4 -1.280 0.396 0.000
C5 0.000 0.807 0.000
H6 -0.063 -2.721 0.000
C7 -0.242 -1.667 0.000
S8 1.071 -0.552 0.000
H9 -0.306 2.909 0.000
H10 1.128 2.408 0.875
H11 1.128 2.408 -0.875
C12 0.521 2.212 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 C5 H6 C7 S8 H9 H10 H11 C12
H11.07172.62222.21683.33082.59242.13033.57754.89955.34245.34244.7318
C21.07172.21521.43442.32422.16871.34092.53954.09544.37044.37043.7809
H32.62222.21521.07252.12814.31243.31793.57412.57383.61093.61092.8673
C42.21681.43441.07251.34453.34622.30982.53572.69523.25803.25802.5576
C53.33082.32422.12811.34453.52802.48571.73052.12462.14552.14551.4987
H62.59242.16874.31243.34623.52801.06872.44725.63515.33755.33754.9672
C72.13031.34093.31792.30982.48571.06871.72294.57684.38764.38763.9536
S83.57752.53953.57412.53571.73052.44721.72293.72553.08743.08742.8187
H94.89954.09542.57382.69522.12465.63514.57683.72551.75361.75361.0815
H105.34244.37043.61093.25802.14555.33754.38763.08741.75361.75081.0834
H115.34244.37043.61093.25802.14555.33754.38763.08741.75361.75081.0834
C124.73183.78092.86732.55761.49874.96723.95362.81871.08151.08341.0834

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 123.748 H1 C2 C7 123.631
C2 C4 H3 123.525 C2 C4 C5 113.473
C2 C7 H6 127.968 C2 C7 S8 111.360
H3 C4 C5 123.001 C4 C2 C7 112.621
C4 C5 S8 110.471 C4 C5 C12 128.108
C5 S8 C7 92.074 C5 C12 H9 109.800
C5 C12 H10 111.365 C5 C12 H11 111.365
H6 C7 S8 120.672 S8 C5 C12 121.421
H9 C12 H10 108.194 H9 C12 H11 108.194
H10 C12 H11 107.807
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.436      
2 C -0.180      
3 H 0.595      
4 C -1.747      
5 C 1.701      
6 H 0.619      
7 C -0.446      
8 S -0.262      
9 H 0.086      
10 H 0.324      
11 H 0.324      
12 C -1.449      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.683 0.600 0.000 0.909
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.066 0.858 0.000
y 0.858 -37.838 0.000
z 0.000 0.000 -47.147
Traceless
 xyz
x 0.427 0.858 0.000
y 0.858 6.768 0.000
z 0.000 0.000 -7.195
Polar
3z2-r2-14.390
x2-y2-4.228
xy0.858
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.445 0.390 0.000
y 0.390 12.569 0.000
z 0.000 0.000 7.706


<r2> (average value of r2) Å2
<r2> 176.132
(<r2>)1/2 13.271