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

using model chemistry: LSDA/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at LSDA/6-311G**
 hartrees
Energy at 0K-552.338816
Energy at 298.15K-552.345474
Nuclear repulsion energy216.907459
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 LSDA/6-311G**
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 3122 3083 7.10      
2 A1 2959 2922 1.12      
3 A1 1689 1669 6.55      
4 A1 1410 1393 10.90      
5 A1 1245 1230 0.05      
6 A1 1091 1078 0.09      
7 A1 971 959 0.15      
8 A1 721 712 2.69      
9 A1 514 508 0.06      
10 A2 2993 2956 0.00      
11 A2 1102 1088 0.00      
12 A2 940 929 0.00      
13 A2 913 901 0.00      
14 A2 368 363 0.00      
15 B1 2995 2958 9.42      
16 B1 1083 1070 15.65      
17 B1 865 855 0.57      
18 B1 656 648 62.97      
19 B1 79 78 5.18      
20 B2 3100 3062 0.58      
21 B2 2959 2923 49.73      
22 B2 1403 1386 2.79      
23 B2 1313 1297 1.56      
24 B2 1206 1191 10.73      
25 B2 970 958 11.56      
26 B2 808 798 0.16      
27 B2 644 636 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 19058.9 cm-1
Scaled (by 0.9877) Zero Point Vibrational Energy (zpe) 18824.5 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 LSDA/6-311G**
ABC
0.22310 0.16156 0.09716

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.240
C2 0.000 1.336 -0.002
C3 0.000 -1.336 -0.002
C4 0.000 0.663 -1.322
C5 0.000 -0.663 -1.322
H6 -0.891 1.975 0.130
H7 0.891 1.975 0.130
H8 0.891 -1.975 0.130
H9 -0.891 -1.975 0.130
H10 0.000 1.262 -2.238
H11 0.000 -1.262 -2.238

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.82471.82472.64722.64722.43502.43502.43502.43503.70073.7007
C21.82472.67271.48182.39631.10401.10403.43193.43192.23783.4280
C31.82472.67272.39631.48183.43193.43191.10401.10403.42802.2378
C42.64721.48182.39631.32702.14992.14993.14083.14081.09422.1320
C52.64722.39631.48181.32703.14083.14082.14992.14992.13201.0942
H62.43501.10403.43192.14993.14081.78124.33363.95072.62884.1084
H72.43501.10403.43192.14993.14081.78123.95074.33362.62884.1084
H82.43503.43191.10403.14082.14994.33363.95071.78124.10842.6288
H92.43503.43191.10403.14082.14993.95074.33361.78124.10842.6288
H103.70072.23783.42801.09422.13202.62882.62884.10844.10842.5232
H113.70073.42802.23782.13201.09424.10844.10842.62882.62882.5232

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 105.907 S1 C2 H6 110.043
S1 C2 H7 110.043 S1 C3 C5 105.907
S1 C3 H8 110.043 S1 C3 H9 110.043
C2 S1 C3 94.171 C2 C4 C5 117.007
C2 C4 H10 119.860 C3 C5 C4 117.007
C3 C5 H11 119.860 C4 C2 H6 111.657
C4 C2 H7 111.657 C4 C5 H11 123.133
C5 C3 H8 111.657 C5 C3 H9 111.657
C5 C4 H10 123.133 H6 C2 H7 107.551
H8 C3 H9 107.551
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.098      
2 C -0.458      
3 C -0.458      
4 C -0.134      
5 C -0.134      
6 H 0.201      
7 H 0.201      
8 H 0.201      
9 H 0.201      
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 -1.929 1.929
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.263 0.000 0.000
y 0.000 -32.850 0.000
z 0.000 0.000 -39.436
Traceless
 xyz
x -4.120 0.000 0.000
y 0.000 6.999 0.000
z 0.000 0.000 -2.879
Polar
3z2-r2-5.759
x2-y2-7.412
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.536 0.000 0.000
y 0.000 10.772 0.000
z 0.000 0.000 9.539


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000