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 C4H6S (Thiophene, 2,5-dihydro-)

using model chemistry: HSEh1PBE/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HSEh1PBE/6-31+G**
 hartrees
Energy at 0K-553.902412
Energy at 298.15K-553.909188
HF Energy-553.902412
Nuclear repulsion energy215.956229
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 HSEh1PBE/6-31+G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3228 3082 14.69      
2 A1 3065 2927 0.29      
3 A1 1730 1652 10.59      
4 A1 1489 1422 7.89      
5 A1 1304 1245 0.28      
6 A1 1143 1092 0.22      
7 A1 978 934 0.13      
8 A1 733 700 2.72      
9 A1 522 499 0.06      
10 A2 3106 2965 0.00      
11 A2 1151 1099 0.00      
12 A2 980 935 0.00      
13 A2 952 909 0.00      
14 A2 378 361 0.00      
15 B1 3107 2967 10.98      
16 B1 1135 1084 13.39      
17 B1 911 870 1.20      
18 B1 684 653 57.62      
19 B1 88 84 5.52      
20 B2 3204 3060 2.97      
21 B2 3066 2927 62.69      
22 B2 1484 1417 0.34      
23 B2 1368 1306 2.10      
24 B2 1265 1208 7.90      
25 B2 989 944 9.57      
26 B2 830 792 0.54      
27 B2 657 627 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 19773.3 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 18879.6 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 HSEh1PBE/6-31+G**
ABC
0.22121 0.15970 0.09608

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.247
C2 0.000 1.345 0.001
C3 0.000 -1.345 0.001
C4 0.000 0.666 -1.334
C5 0.000 -0.666 -1.334
H6 -0.885 1.978 0.133
H7 0.885 1.978 0.133
H8 0.885 -1.978 0.133
H9 -0.885 -1.978 0.133
H10 0.000 1.262 -2.243
H11 0.000 -1.262 -2.243

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.83331.83332.66472.66472.43642.43642.43642.43643.71053.7105
C21.83332.69011.49742.41351.09611.09613.44163.44162.24523.4396
C31.83332.69012.41351.49743.44163.44161.09611.09613.43962.2452
C42.66471.49742.41351.33192.15792.15793.15063.15061.08712.1316
C52.66472.41351.49741.33193.15063.15062.15792.15792.13161.0871
H62.43641.09613.44162.15793.15061.76974.33423.95642.63454.1142
H72.43641.09613.44162.15793.15061.76973.95644.33422.63454.1142
H82.43643.44161.09613.15062.15794.33423.95641.76974.11422.6345
H92.43643.44161.09613.15062.15793.95644.33421.76974.11422.6345
H103.71052.24523.43961.08712.13162.63452.63454.11424.11422.5240
H113.71053.43962.24522.13161.08714.11424.11422.63452.63452.5240

picture of Thiophene, 2,5-dihydro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C4 105.832 S1 C2 H6 109.987
S1 C2 H7 109.987 S1 C3 C5 105.832
S1 C3 H8 109.987 S1 C3 H9 109.987
C2 S1 C3 94.394 C2 C4 C5 116.971
C2 C4 H10 119.778 C3 C5 C4 116.971
C3 C5 H11 119.778 C4 C2 H6 111.688
C4 C2 H7 111.688 C4 C5 H11 123.251
C5 C3 H8 111.688 C5 C3 H9 111.688
C5 C4 H10 123.251 H6 C2 H7 107.670
H8 C3 H9 107.670
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.006      
2 C -0.542      
3 C -0.542      
4 C -0.026      
5 C -0.026      
6 H 0.203      
7 H 0.203      
8 H 0.203      
9 H 0.203      
10 H 0.165      
11 H 0.165      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.962 1.962
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.199 0.000 0.000
y 0.000 -32.531 0.000
z 0.000 0.000 -39.644
Traceless
 xyz
x -4.111 0.000 0.000
y 0.000 7.391 0.000
z 0.000 0.000 -3.280
Polar
3z2-r2-6.559
x2-y2-7.668
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.964 0.000 0.000
y 0.000 10.748 0.000
z 0.000 0.000 9.452


<r2> (average value of r2) Å2
<r2> 128.734
(<r2>)1/2 11.346