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All results from a given calculation for C4H6S (Thiophene, 2,5-dihydro-)

using model chemistry: PBEPBEultrafine/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-553.802633
Energy at 298.15K-553.809276
HF Energy-553.802633
Nuclear repulsion energy214.240891
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 PBEPBEultrafine/6-31G*
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 3137 3085 19.66      
2 A1 2975 2926 0.14      
3 A1 1678 1651 6.99      
4 A1 1466 1442 7.61      
5 A1 1262 1241 0.71      
6 A1 1114 1095 0.34      
7 A1 952 937 0.05      
8 A1 698 687 2.76      
9 A1 504 495 0.00      
10 A2 3008 2958 0.00      
11 A2 1116 1098 0.00      
12 A2 946 930 0.00      
13 A2 913 898 0.00      
14 A2 367 361 0.00      
15 B1 3010 2960 22.79      
16 B1 1104 1085 9.45      
17 B1 882 867 0.06      
18 B1 659 648 44.14      
19 B1 104 103 4.83      
20 B2 3115 3063 4.11      
21 B2 2976 2926 71.01      
22 B2 1463 1439 0.13      
23 B2 1332 1310 1.54      
24 B2 1221 1201 7.38      
25 B2 963 947 7.87      
26 B2 800 787 0.32      
27 B2 624 613 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 19193.8 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 18877.1 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 PBEPBEultrafine/6-31G*
ABC
0.21772 0.15718 0.09456

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.259
C2 0.000 1.356 -0.004
C3 0.000 -1.356 -0.004
C4 0.000 0.671 -1.342
C5 0.000 -0.671 -1.342
H6 -0.891 1.996 0.132
H7 0.891 1.996 0.132
H8 0.891 -1.996 0.132
H9 -0.891 -1.996 0.132
H10 0.000 1.273 -2.258
H11 0.000 -1.273 -2.258

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.85221.85222.68592.68592.45922.45922.45922.45923.73973.7397
C21.85222.71121.50382.42851.10591.10593.47103.47102.25573.4627
C31.85222.71122.42851.50383.47103.47101.10591.10593.46272.2557
C42.68591.50382.42851.34122.17402.17403.17513.17511.09592.1484
C52.68592.42851.50381.34123.17513.17512.17402.17402.14841.0959
H62.45921.10593.47102.17403.17511.78224.37233.99262.65154.1467
H72.45921.10593.47102.17403.17511.78223.99264.37232.65154.1467
H82.45923.47101.10593.17512.17404.37233.99261.78224.14672.6515
H92.45923.47101.10593.17512.17403.99264.37231.78224.14672.6515
H103.73972.25573.46271.09592.14842.65152.65154.14674.14672.5458
H113.73973.46272.25572.14841.09594.14674.14672.65152.65152.5458

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 105.858 S1 C2 H6 109.890
S1 C2 H7 109.890 S1 C3 C5 105.858
S1 C3 H8 109.890 S1 C3 H9 109.890
C2 S1 C3 94.089 C2 C4 C5 117.098
C2 C4 H10 119.562 C3 C5 C4 117.098
C3 C5 H11 119.562 C4 C2 H6 111.925
C4 C2 H7 111.925 C4 C5 H11 123.340
C5 C3 H8 111.925 C5 C3 H9 111.925
C5 C4 H10 123.340 H6 C2 H7 107.363
H8 C3 H9 107.363
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.093      
2 C -0.496      
3 C -0.496      
4 C -0.095      
5 C -0.095      
6 H 0.196      
7 H 0.196      
8 H 0.196      
9 H 0.196      
10 H 0.152      
11 H 0.152      


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 -1.990 1.990
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.387 0.000 0.000
y 0.000 -32.179 -0.007
z 0.000 -0.007 -38.758
Traceless
 xyz
x -3.919 0.000 0.000
y 0.000 6.894 -0.007
z 0.000 -0.007 -2.975
Polar
3z2-r2-5.950
x2-y2-7.208
xy0.000
xz0.000
yz-0.007


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.270 0.000 0.000
y 0.000 10.156 -0.005
z 0.000 -0.005 8.834


<r2> (average value of r2) Å2
<r2> 130.004
(<r2>)1/2 11.402