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

using model chemistry: mPW1PW91/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at mPW1PW91/cc-pVDZ
 hartrees
Energy at 0K-554.199293
Energy at 298.15K-554.206088
Nuclear repulsion energy215.782771
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 mPW1PW91/cc-pVDZ
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 3228 3093 13.24      
2 A1 3057 2930 0.15      
3 A1 1741 1669 6.81      
4 A1 1463 1402 5.56      
5 A1 1287 1233 0.16      
6 A1 1131 1084 0.14      
7 A1 982 941 0.19      
8 A1 731 701 2.76      
9 A1 520 498 0.00      
10 A2 3100 2971 0.00      
11 A2 1140 1092 0.00      
12 A2 970 930 0.00      
13 A2 945 906 0.00      
14 A2 380 364 0.00      
15 B1 3102 2973 19.14      
16 B1 1124 1078 10.60      
17 B1 892 855 0.24      
18 B1 683 655 42.82      
19 B1 100 96 3.70      
20 B2 3203 3070 2.50      
21 B2 3058 2930 66.45      
22 B2 1458 1398 0.06      
23 B2 1362 1305 1.36      
24 B2 1240 1188 6.71      
25 B2 988 947 10.80      
26 B2 830 796 0.50      
27 B2 656 629 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 19686.8 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 18865.8 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 mPW1PW91/cc-pVDZ
ABC
0.22092 0.15955 0.09600

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.247
C2 0.000 1.345 -0.000
C3 0.000 -1.345 -0.000
C4 0.000 0.666 -1.333
C5 0.000 -0.666 -1.333
H6 -0.889 1.982 0.135
H7 0.889 1.982 0.135
H8 0.889 -1.982 0.135
H9 -0.889 -1.982 0.135
H10 0.000 1.263 -2.248
H11 0.000 -1.263 -2.248

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.83461.83462.66492.66492.44072.44072.44072.44073.71603.7160
C21.83462.69021.49592.41261.10181.10183.44673.44672.24873.4427
C31.83462.69022.41261.49593.44673.44671.10181.10183.44272.2487
C42.66491.49592.41261.33192.16282.16283.15573.15571.09212.1347
C52.66492.41261.49591.33193.15573.15572.16282.16282.13471.0921
H62.44071.10183.44672.16283.15571.77724.34483.96472.64254.1229
H72.44071.10183.44672.16283.15571.77723.96474.34482.64254.1229
H82.44073.44671.10183.15572.16284.34483.96471.77724.12292.6425
H92.44073.44671.10183.15572.16283.96474.34481.77724.12292.6425
H103.71602.24873.44271.09212.13472.64252.64254.12294.12292.5260
H113.71603.44272.24872.13471.09214.12294.12292.64252.64252.5260

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 105.843 S1 C2 H6 109.915
S1 C2 H7 109.915 S1 C3 C5 105.843
S1 C3 H8 109.915 S1 C3 H9 109.915
C2 S1 C3 94.309 C2 C4 C5 117.002
C2 C4 H10 119.855 C3 C5 C4 117.002
C3 C5 H11 119.855 C4 C2 H6 111.834
C4 C2 H7 111.834 C4 C5 H11 123.143
C5 C3 H8 111.834 C5 C3 H9 111.834
C5 C4 H10 123.143 H6 C2 H7 107.509
H8 C3 H9 107.509
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.075      
2 C -0.099      
3 C -0.099      
4 C -0.052      
5 C -0.052      
6 H 0.085      
7 H 0.085      
8 H 0.085      
9 H 0.085      
10 H 0.019      
11 H 0.019      


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 -1.807 1.807
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.337 0.000 0.000
y 0.000 -32.409 0.000
z 0.000 0.000 -38.775
Traceless
 xyz
x -3.745 0.000 0.000
y 0.000 6.647 0.000
z 0.000 0.000 -2.902
Polar
3z2-r2-5.804
x2-y2-6.928
xy0.000
xz0.000
yz0.000


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> 128.505
(<r2>)1/2 11.336