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

using model chemistry: B3PW91/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 B3PW91/cc-pVDZ
 hartrees
Energy at 0K-554.126205
Energy at 298.15K-554.132971
Nuclear repulsion energy215.342261
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/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 3208 3095 14.25      
2 A1 3037 2931 0.12      
3 A1 1726 1666 6.89      
4 A1 1454 1404 5.61      
5 A1 1277 1232 0.20      
6 A1 1126 1086 0.14      
7 A1 974 940 0.18      
8 A1 722 697 2.74      
9 A1 515 497 0.00      
10 A2 3079 2971 0.00      
11 A2 1132 1092 0.00      
12 A2 961 928 0.00      
13 A2 939 906 0.00      
14 A2 377 364 0.00      
15 B1 3081 2973 20.44      
16 B1 1117 1078 10.42      
17 B1 886 855 0.17      
18 B1 678 654 42.49      
19 B1 102 98 3.66      
20 B2 3183 3072 2.80      
21 B2 3038 2931 68.55      
22 B2 1450 1399 0.03      
23 B2 1352 1305 1.37      
24 B2 1231 1188 6.65      
25 B2 981 946 10.78      
26 B2 823 795 0.47      
27 B2 647 625 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 19547.0 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 18862.9 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/cc-pVDZ
ABC
0.22006 0.15886 0.09560

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 1.251
C2 0.000 1.348 -0.001
C3 0.000 -1.348 -0.001
C4 0.000 0.667 -1.336
C5 0.000 -0.667 -1.336
H6 -0.890 1.986 0.134
H7 0.890 1.986 0.134
H8 0.890 -1.986 0.134
H9 -0.890 -1.986 0.134
H10 0.000 1.265 -2.251
H11 0.000 -1.265 -2.251

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.83961.83962.67082.67082.44622.44622.44622.44623.72353.7235
C21.83962.69581.49792.41661.10361.10363.45373.45372.25153.4482
C31.83962.69582.41661.49793.45373.45371.10361.10363.44822.2515
C42.67081.49792.41661.33412.16642.16643.16123.16121.09382.1381
C52.67082.41661.49791.33413.16123.16122.16642.16642.13811.0938
H62.44621.10363.45372.16643.16121.77974.35323.97282.64654.1298
H72.44621.10363.45372.16643.16121.77973.97284.35322.64654.1298
H82.44623.45371.10363.16122.16644.35323.97281.77974.12982.6465
H92.44623.45371.10363.16122.16643.97284.35321.77974.12982.6465
H103.72352.25153.44821.09382.13812.64652.64654.12984.12982.5301
H113.72353.44822.25152.13811.09384.12984.12982.64652.64652.5301

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 105.852 S1 C2 H6 109.891
S1 C2 H7 109.891 S1 C3 C5 105.852
S1 C3 H8 109.891 S1 C3 H9 109.891
C2 S1 C3 94.225 C2 C4 C5 117.036
C2 C4 H10 119.820 C3 C5 C4 117.036
C3 C5 H11 119.820 C4 C2 H6 111.872
C4 C2 H7 111.872 C4 C5 H11 123.144
C5 C3 H8 111.872 C5 C3 H9 111.872
C5 C4 H10 123.144 H6 C2 H7 107.472
H8 C3 H9 107.472
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.077      
2 C -0.099      
3 C -0.099      
4 C -0.050      
5 C -0.050      
6 H 0.085      
7 H 0.085      
8 H 0.085      
9 H 0.085      
10 H 0.018      
11 H 0.018      


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 -1.799 1.799
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.320 0.000 0.000
y 0.000 -32.409 0.000
z 0.000 0.000 -38.762
Traceless
 xyz
x -3.735 0.000 0.000
y 0.000 6.632 0.000
z 0.000 0.000 -2.897
Polar
3z2-r2-5.794
x2-y2-6.912
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> 128.934
(<r2>)1/2 11.355