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

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/6-31G*
 hartrees
Energy at 0K-554.204343
Energy at 298.15K-554.211112
Nuclear repulsion energy214.695957
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 B3LYPultrafine/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 3204 3070 21.53      
2 A1 3050 2922 0.13      
3 A1 1727 1654 7.01      
4 A1 1519 1455 6.37      
5 A1 1308 1253 1.42      
6 A1 1153 1105 0.44      
7 A1 963 923 0.04      
8 A1 708 678 2.86      
9 A1 515 494 0.00      
10 A2 3082 2952 0.00      
11 A2 1157 1109 0.00      
12 A2 979 938 0.00      
13 A2 956 916 0.00      
14 A2 381 365 0.00      
15 B1 3084 2954 27.26      
16 B1 1145 1097 9.54      
17 B1 917 878 0.01      
18 B1 685 656 40.45      
19 B1 111 106 4.66      
20 B2 3182 3048 4.83      
21 B2 3050 2922 74.52      
22 B2 1517 1453 0.52      
23 B2 1378 1320 2.06      
24 B2 1269 1216 7.70      
25 B2 979 938 7.03      
26 B2 825 791 0.62      
27 B2 634 607 0.25      

Unscaled Zero Point Vibrational Energy (zpe) 19738.9 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 18909.8 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 B3LYPultrafine/6-31G*
ABC
0.21895 0.15740 0.09482

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/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 1.355 -0.005
C3 0.000 -1.355 -0.005
C4 0.000 0.666 -1.342
C5 0.000 -0.666 -1.342
H6 -0.885 1.989 0.130
H7 0.885 1.989 0.130
H8 0.885 -1.989 0.130
H9 -0.885 -1.989 0.130
H10 0.000 1.263 -2.251
H11 0.000 -1.263 -2.251

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.85221.85222.68422.68422.45202.45202.45202.45203.72973.7297
C21.85222.70901.50382.42281.09681.09683.46093.46092.24803.4491
C31.85222.70902.42281.50383.46093.46091.09681.09683.44912.2480
C42.68421.50382.42281.33202.16722.16723.16143.16141.08772.1325
C52.68422.42281.50381.33203.16143.16142.16722.16722.13251.0877
H62.45201.09683.46092.16723.16141.76944.35323.97742.64124.1259
H72.45201.09683.46092.16723.16141.76943.97744.35322.64124.1259
H82.45203.46091.09683.16142.16724.35323.97741.76944.12592.6412
H92.45203.46091.09683.16142.16723.97744.35321.76944.12592.6412
H103.72972.24803.44911.08772.13252.64122.64124.12594.12592.5260
H113.72973.44912.24802.13251.08774.12594.12592.64122.64122.5260

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 105.755 S1 C2 H6 109.835
S1 C2 H7 109.835 S1 C3 C5 105.755
S1 C3 H8 109.835 S1 C3 H9 109.835
C2 S1 C3 93.991 C2 C4 C5 117.249
C2 C4 H10 119.459 C3 C5 C4 117.249
C3 C5 H11 119.459 C4 C2 H6 111.940
C4 C2 H7 111.940 C4 C5 H11 123.292
C5 C3 H8 111.940 C5 C3 H9 111.940
C5 C4 H10 123.292 H6 C2 H7 107.538
H8 C3 H9 107.538
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.076      
2 C -0.451      
3 C -0.451      
4 C -0.092      
5 C -0.092      
6 H 0.181      
7 H 0.181      
8 H 0.181      
9 H 0.181      
10 H 0.142      
11 H 0.142      


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 -1.999 1.999
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.405 0.000 0.000
y 0.000 -32.372 0.000
z 0.000 0.000 -38.933
Traceless
 xyz
x -3.752 0.000 0.000
y 0.000 6.797 0.000
z 0.000 0.000 -3.044
Polar
3z2-r2-6.089
x2-y2-7.033
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.171 0.000 0.000
y 0.000 9.956 0.000
z 0.000 0.000 8.566


<r2> (average value of r2) Å2
<r2> 129.674
(<r2>)1/2 11.387