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All results from a given calculation for C4H6OS (2,5-dihydrothiophene-3-ol)

using model chemistry: B1B95/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/CEP-31G*
 hartrees
Energy at 0K-52.223166
Energy at 298.15K-52.230272
Nuclear repulsion energy120.198947
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 B1B95/CEP-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 A 3853 3688 43.36      
2 A 3193 3057 15.81      
3 A 3138 3004 14.65      
4 A 3118 2984 21.25      
5 A 3085 2953 37.45      
6 A 3072 2941 49.56      
7 A 1767 1691 109.62      
8 A 1491 1427 2.85      
9 A 1485 1421 7.44      
10 A 1428 1367 10.62      
11 A 1298 1242 44.28      
12 A 1267 1213 65.75      
13 A 1225 1172 6.54      
14 A 1168 1118 163.06      
15 A 1129 1080 0.00      
16 A 1113 1065 6.85      
17 A 1029 985 11.27      
18 A 951 911 0.51      
19 A 897 858 0.77      
20 A 884 847 0.65      
21 A 792 758 6.92      
22 A 774 741 67.22      
23 A 731 700 0.81      
24 A 597 572 1.43      
25 A 466 446 0.40      
26 A 459 440 0.63      
27 A 407 389 116.35      
28 A 374 358 13.36      
29 A 217 208 4.58      
30 A 63 60 3.81      

Unscaled Zero Point Vibrational Energy (zpe) 20736.2 cm-1
Scaled (by 0.9572) Zero Point Vibrational Energy (zpe) 19848.7 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 B1B95/CEP-31G*
ABC
0.19661 0.07813 0.05713

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/CEP-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 1.553 -0.524 0.000
C2 -0.158 -1.192 0.000
C3 -1.063 0.020 -0.000
C4 -0.475 1.250 -0.000
C5 1.035 1.254 0.000
O6 -2.398 -0.279 -0.000
H7 -0.338 -1.811 -0.893
H8 -1.035 2.191 -0.000
H9 1.450 1.751 0.892
H10 -0.338 -1.811 0.893
H11 1.450 1.752 -0.892
H12 -2.898 0.552 -0.001

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12
S11.83702.67202.69501.85153.95882.45643.75102.44602.45642.44604.5797
C21.83701.51252.46302.72122.41891.10163.49503.47051.10163.47083.2482
C32.67201.51251.36362.43381.36812.16222.17143.17942.16213.17951.9110
C42.69502.46301.36361.51042.45683.19221.09462.18043.19202.18042.5218
C51.85152.72122.43381.51043.75963.47542.27241.10253.47521.10253.9956
O63.95882.41891.36812.45683.75962.71762.82134.44142.71774.44150.9699
H72.45641.10162.16223.19223.47542.71764.15954.36781.78613.98673.5961
H83.75103.49502.17141.09462.27242.82134.15952.67674.15932.67672.4820
H92.44603.47053.17942.18041.10254.44144.36782.67673.98611.78394.5984
H102.45641.10162.16213.19203.47522.71771.78614.15933.98614.36783.5964
H112.44603.47083.17952.18041.10254.44153.98672.67671.78394.36784.5982
H124.57973.24821.91102.52183.99560.96993.59612.48204.59843.59644.5982

picture of 2,5-dihydrothiophene-3-ol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 105.417 S1 C2 H7 110.927
S1 C2 H10 110.930 S1 C5 C4 106.128
S1 C5 H9 109.149 S1 C5 H11 109.145
C2 S1 C5 95.078 C2 C3 C4 117.728
C2 C3 O6 114.124 C3 C2 H7 110.623
C3 C2 H10 110.621 C3 C4 C5 115.648
C3 C4 H8 123.730 C3 O6 H12 108.439
C4 C3 O6 128.147 C4 C5 H9 112.176
C4 C5 H11 112.178 C5 C4 H8 120.622
H7 C2 H10 108.330 H9 C5 H11 107.997
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.078      
2 C -0.240      
3 C -0.151      
4 C -0.269      
5 C -0.327      
6 O -0.309      
7 H 0.177      
8 H 0.281      
9 H 0.166      
10 H 0.177      
11 H 0.166      
12 H 0.406      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.862 1.926 -0.001 2.679
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.327 -1.832 0.004
y -1.832 -37.324 -0.001
z 0.004 -0.001 -43.816
Traceless
 xyz
x -0.757 -1.832 0.004
y -1.832 5.247 -0.001
z 0.004 -0.001 -4.490
Polar
3z2-r2-8.980
x2-y2-4.002
xy-1.832
xz0.004
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.365 0.594 0.000
y 0.594 10.311 -0.000
z 0.000 -0.000 5.095


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