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: HF/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/daug-cc-pVTZ
 hartrees
Energy at 0K-552.547277
Energy at 298.15K-552.554367
HF Energy-552.547277
Nuclear repulsion energy217.081883
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 A1 3335 3017 18.91      
2 A1 3188 2884 0.54      
3 A1 1842 1666 11.04      
4 A1 1618 1463 4.85      
5 A1 1418 1283 0.56      
6 A1 1236 1118 0.92      
7 A1 1009 913 0.39      
8 A1 775 701 3.64      
9 A1 555 502 0.01      
10 A2 3221 2914 0.00      
11 A2 1260 1139 0.00      
12 A2 1096 991 0.00      
13 A2 1034 935 0.00      
14 A2 421 381 0.00      
15 B1 3222 2915 20.33      
16 B1 1241 1122 13.68      
17 B1 999 904 4.09      
18 B1 753 681 49.58      
19 B1 112 101 4.92      
20 B2 3310 2994 6.40      
21 B2 3188 2884 85.13      
22 B2 1614 1460 0.01      
23 B2 1488 1346 3.88      
24 B2 1378 1247 5.07      
25 B2 1033 935 9.88      
26 B2 893 808 1.77      
27 B2 700 633 0.41      

Unscaled Zero Point Vibrational Energy (zpe) 20968.6 cm-1
Scaled (by 0.9046) Zero Point Vibrational Energy (zpe) 18968.2 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
0.22342 0.16110 0.09693

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.240
C2 0.000 1.344 0.004
C3 0.000 -1.344 0.004
C4 0.000 0.656 -1.330
C5 0.000 -0.656 -1.330
H6 -0.875 1.966 0.134
H7 0.875 1.966 0.134
H8 0.875 -1.966 0.134
H9 -0.875 -1.966 0.134
H10 0.000 1.243 -2.230
H11 0.000 -1.243 -2.230

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.82621.82622.65262.65262.41972.41972.41972.41973.68603.6860
C21.82622.68761.50042.40381.08181.08183.42593.42592.23583.4174
C31.82622.68762.40381.50043.42593.42591.08181.08183.41742.2358
C42.65261.50042.40381.31232.15042.15043.12793.12791.07422.1013
C52.65262.40381.50041.31233.12793.12792.15042.15042.10131.0742
H62.41971.08183.42592.15043.12791.75094.30383.93162.62244.0802
H72.41971.08183.42592.15043.12791.75093.93164.30382.62244.0802
H82.41973.42591.08183.12792.15044.30383.93161.75094.08022.6224
H92.41973.42591.08183.12792.15043.93164.30381.75094.08022.6224
H103.68602.23583.41741.07422.10132.62242.62244.08024.08022.4853
H113.68603.41742.23582.10131.07424.08024.08022.62242.62242.4853

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 105.344 S1 C2 H6 109.970
S1 C2 H7 109.970 S1 C3 C5 105.344
S1 C3 H8 109.970 S1 C3 H9 109.970
C2 S1 C3 94.756 C2 C4 C5 117.278
C2 C4 H10 119.633 C3 C5 C4 117.278
C3 C5 H11 119.633 C4 C2 H6 111.750
C4 C2 H7 111.750 C4 C5 H11 123.089
C5 C3 H8 111.750 C5 C3 H9 111.750
C5 C4 H10 123.089 H6 C2 H7 108.048
H8 C3 H9 108.048
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 S -0.572      
2 C -0.473      
3 C -0.473      
4 C -0.580      
5 C -0.580      
6 H 0.337      
7 H 0.337      
8 H 0.337      
9 H 0.337      
10 H 0.665      
11 H 0.665      


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 -1.945 1.945
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.283 0.000 0.000
y 0.000 -32.834 0.000
z 0.000 0.000 -40.128
Traceless
 xyz
x -3.802 0.000 0.000
y 0.000 7.372 0.000
z 0.000 0.000 -3.570
Polar
3z2-r2-7.140
x2-y2-7.449
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.281 0.000 0.000
y 0.000 10.888 0.000
z 0.000 0.000 9.772


<r2> (average value of r2) Å2
<r2> 127.877
(<r2>)1/2 11.308