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

using model chemistry: PBEPBE/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 PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-553.829925
Energy at 298.15K-553.836545
Nuclear repulsion energy214.033683
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 PBEPBE/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3129 3111 15.45      
2 A1 2954 2937 0.08      
3 A1 1670 1660 7.14      
4 A1 1403 1394 5.83      
5 A1 1228 1221 0.44      
6 A1 1088 1081 0.09      
7 A1 951 946 0.10      
8 A1 694 690 2.46      
9 A1 499 496 0.01      
10 A2 2991 2973 0.00      
11 A2 1088 1081 0.00      
12 A2 918 913 0.00      
13 A2 907 902 0.00      
14 A2 364 361 0.00      
15 B1 2993 2975 22.08      
16 B1 1075 1069 9.74      
17 B1 849 844 0.00      
18 B1 653 650 39.10      
19 B1 100 99 3.35      
20 B2 3105 3087 3.01      
21 B2 2954 2937 70.84      
22 B2 1398 1390 0.00      
23 B2 1307 1299 0.89      
24 B2 1181 1174 7.02      
25 B2 955 949 10.41      
26 B2 795 790 0.27      
27 B2 621 617 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 18933.2 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 18823.3 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 PBEPBE/cc-pVDZ
ABC
0.21744 0.15694 0.09446

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

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 -0.004
C3 0.000 -1.355 -0.004
C4 0.000 0.672 -1.342
C5 0.000 -0.672 -1.342
H6 -0.896 1.999 0.134
H7 0.896 1.999 0.134
H8 0.896 -1.999 0.134
H9 -0.896 -1.999 0.134
H10 0.000 1.274 -2.265
H11 0.000 -1.274 -2.265

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
S11.85291.85292.68692.68692.46282.46282.46282.46283.74723.7472
C21.85292.71051.50252.42881.11201.11203.47463.47462.26193.4672
C31.85292.71052.42881.50253.47463.47461.11201.11203.46722.2619
C42.68691.50252.42881.34362.17802.17803.18053.18051.10152.1532
C52.68692.42881.50251.34363.18053.18052.17802.17802.15321.1015
H62.46281.11203.47462.17803.18051.79234.38143.99802.66134.1555
H72.46281.11203.47462.17803.18051.79233.99804.38142.66134.1555
H82.46283.47461.11203.18052.17804.38143.99801.79234.15552.6613
H92.46283.47461.11203.18052.17803.99804.38141.79234.15552.6613
H103.74722.26193.46721.10152.15322.66132.66134.15554.15552.5476
H113.74723.46722.26192.15321.10154.15554.15552.66132.66132.5476

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 105.938 S1 C2 H6 109.798
S1 C2 H7 109.798 S1 C3 C5 105.938
S1 C3 H8 109.798 S1 C3 H9 109.798
C2 S1 C3 94.011 C2 C4 C5 117.057
C2 C4 H10 119.814 C3 C5 C4 117.057
C3 C5 H11 119.814 C4 C2 H6 111.962
C4 C2 H7 111.962 C4 C5 H11 123.129
C5 C3 H8 111.962 C5 C3 H9 111.962
C5 C4 H10 123.129 H6 C2 H7 107.387
H8 C3 H9 107.387
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.073      
2 C -0.084      
3 C -0.084      
4 C -0.024      
5 C -0.024      
6 H 0.073      
7 H 0.073      
8 H 0.073      
9 H 0.073      
10 H -0.002      
11 H -0.002      


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 -1.722 1.722
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.459 0.000 0.000
y 0.000 -32.745 0.000
z 0.000 0.000 -38.849
Traceless
 xyz
x -3.663 0.000 0.000
y 0.000 6.409 0.000
z 0.000 0.000 -2.747
Polar
3z2-r2-5.493
x2-y2-6.715
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.273 0.000 0.000
y 0.000 10.708 0.000
z 0.000 0.000 9.185


<r2> (average value of r2) Å2
<r2> 130.341
(<r2>)1/2 11.417