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, 2,3-dihydro-)

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-554.099177
Energy at 298.15K-554.106032
Nuclear repulsion energy216.509339
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 B3PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3254 3113 7.39      
2 A 3221 3081 2.83      
3 A 3161 3025 9.88      
4 A 3098 2964 39.31      
5 A 3084 2950 7.17      
6 A 3023 2892 38.86      
7 A 1671 1599 12.34      
8 A 1515 1449 1.13      
9 A 1496 1431 1.87      
10 A 1359 1301 0.42      
11 A 1340 1282 3.49      
12 A 1294 1238 16.23      
13 A 1220 1167 2.20      
14 A 1161 1111 0.49      
15 A 1132 1083 1.35      
16 A 1035 990 5.58      
17 A 1010 966 2.78      
18 A 933 893 2.84      
19 A 922 882 1.48      
20 A 866 828 1.84      
21 A 801 767 23.52      
22 A 705 674 14.89      
23 A 685 656 29.99      
24 A 659 630 15.35      
25 A 505 483 0.61      
26 A 408 390 2.87      
27 A 152 145 1.17      

Unscaled Zero Point Vibrational Energy (zpe) 19854.2 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 18994.5 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 B3PW91/6-31G*
ABC
0.22876 0.15559 0.09748

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.074 -1.266 0.193
H2 -0.055 -1.552 1.249
H3 0.116 -2.153 -0.415
C4 -1.394 -0.562 -0.162
H5 -2.215 -0.961 0.445
H6 -1.662 -0.743 -1.215
C7 0.116 1.279 0.075
H8 0.495 2.292 0.154
C9 -1.168 0.912 0.057
H10 -1.990 1.620 0.119
S11 1.277 -0.043 -0.082

Atom - Atom Distances (Å)
  C1 H2 H3 C4 H5 H6 C7 H8 C9 H10 S11
C11.09491.09231.53732.17722.18562.55463.60362.44083.46431.8434
H21.09491.77782.18282.37903.05133.06974.03512.95483.88322.4138
H31.09231.77782.20842.75592.40673.46714.49793.35674.35382.4319
C41.53732.18282.20841.09681.10162.39263.43731.50692.27902.7224
H52.17722.37902.75591.09681.76403.25434.24482.18082.61173.6496
H62.18563.05132.40671.10161.76402.98533.96712.14452.73303.2269
C72.55463.06973.46712.39263.25432.98531.08491.33582.13331.7665
H83.60364.03514.49793.43734.24483.96711.08492.16392.57432.4738
C92.44082.95483.35671.50692.18082.14451.33582.16391.08612.6290
H103.46433.88324.35382.27902.61172.73302.13332.57431.08613.6711
S111.84342.41382.43192.72243.64963.22691.76652.47382.62903.6711

picture of Thiophene, 2,3-dihydro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C4 H5 110.370 C1 C4 H6 110.752
C1 C4 C9 106.602 C1 S11 C7 90.067
H2 C1 H3 108.747 H2 C1 C4 110.929
H2 C1 S11 107.739 H3 C1 C4 113.156
H3 C1 S11 109.181 C4 C1 S11 106.930
C4 C9 C7 114.504 C4 C9 H10 122.188
H5 C4 H6 106.717 H5 C4 C9 112.825
H6 C4 C9 109.622 C7 C9 H10 123.156
H8 C7 C9 126.431 H8 C7 S11 118.391
C9 C7 S11 115.164
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.491     -0.140
2 H 0.208     0.106
3 H 0.204     0.114
4 C -0.352     0.034
5 H 0.181     0.037
6 H 0.186     0.040
7 C -0.337     -0.271
8 H 0.199     0.226
9 C -0.117     -0.107
10 H 0.169     0.100
11 S 0.149     -0.138


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.692 -0.358 0.211 1.742
CHELPG        
AIM        
ESP -1.662 -0.364 0.250 1.719


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.918 0.574 0.054
y 0.574 -32.852 0.078
z 0.054 0.078 -39.332
Traceless
 xyz
x -1.825 0.574 0.054
y 0.574 5.773 0.078
z 0.054 0.078 -3.947
Polar
3z2-r2-7.895
x2-y2-5.066
xy0.574
xz0.054
yz0.078


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


<r2> (average value of r2) Å2
<r2> 127.605
(<r2>)1/2 11.296