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All results from a given calculation for C4H6S (Thiophene, 2,3-dihydro-)

using model chemistry: HF/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/3-21G
 hartrees
Energy at 0K-549.642508
Energy at 298.15K-549.649587
Nuclear repulsion energy213.671503
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/3-21G
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 3439 3114 5.77      
2 A 3375 3056 3.00      
3 A 3351 3034 5.78      
4 A 3285 2975 24.90      
5 A 3251 2944 10.49      
6 A 3206 2904 25.24      
7 A 1818 1646 5.23      
8 A 1648 1493 1.56      
9 A 1630 1476 4.85      
10 A 1470 1331 4.40      
11 A 1460 1322 7.76      
12 A 1420 1286 19.20      
13 A 1339 1213 2.90      
14 A 1283 1162 0.85      
15 A 1249 1131 0.26      
16 A 1136 1029 0.29      
17 A 1089 986 7.77      
18 A 1047 948 5.50      
19 A 948 859 3.90      
20 A 907 821 1.75      
21 A 842 762 37.15      
22 A 791 716 55.09      
23 A 712 645 13.97      
24 A 658 596 3.87      
25 A 533 483 0.71      
26 A 437 396 2.52      
27 A 131 119 1.72      

Unscaled Zero Point Vibrational Energy (zpe) 21225.7 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 19222.0 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/3-21G
ABC
0.22159 0.15101 0.09415

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.080 -1.305 0.182
H2 -0.044 -1.603 1.216
H3 0.113 -2.146 -0.462
C4 -1.406 -0.580 -0.152
H5 -2.202 -0.948 0.484
H6 -1.687 -0.766 -1.184
C7 0.069 1.313 0.074
H8 0.410 2.321 0.163
C9 -1.178 0.910 0.044
H10 -2.010 1.582 0.109
S11 1.312 -0.029 -0.076

Atom - Atom Distances (Å)
  C1 H2 H3 C4 H5 H6 C7 H8 C9 H10 S11
C11.07741.07651.54792.17242.17632.62493.65912.47583.47321.9061
H21.07741.77092.18542.37113.02683.13414.08812.99583.90322.4463
H31.07651.77092.20432.77292.38043.50094.52023.35574.32782.4633
C41.54792.18542.20431.08311.08562.41083.43681.51932.25902.7748
H52.17242.37112.77291.08311.75503.23144.19692.16652.56473.6752
H62.17633.02682.38041.08561.75502.99853.96762.13892.69953.2813
C72.62493.13413.50092.41083.23142.99851.06741.31152.09721.8358
H83.65914.08814.52023.43684.19693.96761.06742.12812.53162.5287
C92.47582.99583.35571.51932.16652.13891.31152.12811.07152.6643
H103.47323.90324.32782.25902.56472.69952.09722.53161.07153.6972
S111.90612.44632.46332.77483.67523.28131.83582.52872.66433.6972

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 110.065 C1 C4 H6 110.226
C1 C4 C9 107.638 C1 S11 C7 89.074
H2 C1 H3 110.613 H2 C1 C4 111.445
H2 C1 S11 106.848 H3 C1 C4 113.040
H3 C1 S11 108.112 C4 C1 S11 106.447
C4 C9 C7 116.584 C4 C9 H10 120.382
H5 C4 H6 108.042 H5 C4 C9 111.614
H6 C4 C9 109.259 C7 C9 H10 122.982
H8 C7 C9 126.599 H8 C7 S11 118.748
C9 C7 S11 114.648
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.655 -0.009   -0.137
2 H 0.260 0.058   0.117
3 H 0.257 0.069   0.122
4 C -0.453 0.176   0.006
5 H 0.235 -0.011   0.047
6 H 0.242 -0.004   0.056
7 C -0.548 -0.190   -0.295
8 H 0.266 0.210   0.251
9 C -0.183 -0.200   -0.095
10 H 0.244 0.126   0.115
11 S 0.334 -0.225   -0.189


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.312 -0.290 0.247 2.343
CHELPG -2.161 -0.269 0.244 2.192
AIM        
ESP -2.269 -0.312 0.277 2.308


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.839 0.383 0.140
y 0.383 -33.709 0.212
z 0.140 0.212 -41.038
Traceless
 xyz
x -2.465 0.383 0.140
y 0.383 6.729 0.212
z 0.140 0.212 -4.263
Polar
3z2-r2-8.527
x2-y2-6.129
xy0.383
xz0.140
yz0.212


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.508 0.433 -0.155
y 0.433 8.016 0.078
z -0.155 0.078 4.339


<r2> (average value of r2) Å2
<r2> 131.544
(<r2>)1/2 11.469