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All results from a given calculation for C4H6OS (4,5-dihydrothiophene-2-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-52.221787
Energy at 298.15K-52.229069
Nuclear repulsion energy120.491099
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 3848 3683 51.84      
2 A 3212 3074 8.71      
3 A 3174 3038 22.90      
4 A 3122 2988 44.42      
5 A 3102 2969 20.84      
6 A 3049 2919 57.03      
7 A 1708 1635 159.42      
8 A 1490 1426 0.30      
9 A 1466 1403 4.89      
10 A 1383 1323 11.57      
11 A 1332 1275 12.88      
12 A 1294 1239 21.53      
13 A 1265 1211 46.39      
14 A 1190 1139 20.30      
15 A 1147 1098 172.79      
16 A 1139 1090 15.86      
17 A 1043 998 18.75      
18 A 992 949 6.54      
19 A 946 905 13.58      
20 A 865 828 3.90      
21 A 727 695 71.54      
22 A 706 675 2.75      
23 A 692 662 13.16      
24 A 608 582 4.62      
25 A 518 496 3.82      
26 A 455 435 3.68      
27 A 357 341 12.43      
28 A 348 333 99.53      
29 A 261 250 8.33      
30 A 178 170 2.67      

Unscaled Zero Point Vibrational Energy (zpe) 20806.4 cm-1
Scaled (by 0.9572) Zero Point Vibrational Energy (zpe) 19915.9 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 B1B95/CEP-31G*
ABC
0.15368 0.09970 0.06313

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 0.065 -1.272 -0.124
C2 -0.859 0.245 0.023
C3 -0.107 1.385 0.032
C4 1.369 1.112 -0.198
C5 1.594 -0.334 0.295
O6 -2.212 0.091 0.084
H7 -0.531 2.390 0.100
H8 2.022 1.804 0.360
H9 1.718 -0.359 1.389
H10 1.626 1.202 -1.270
H11 2.454 -0.828 -0.181
H12 -2.614 0.970 0.001

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12
S11.78282.66792.71871.84252.66233.71753.67782.41973.14172.43053.4964
C21.78281.36642.40172.53571.36282.17163.29352.97892.96003.48851.8991
C32.66791.36641.51912.43302.47181.09272.19432.86582.17493.39122.5418
C42.71872.40171.51911.54413.73492.30971.10242.19101.10592.22213.9914
C51.84252.53572.43301.54413.83593.46072.18121.10032.19331.09974.4159
O62.66231.36282.47183.73493.83592.84824.57584.16554.21844.76290.9703
H73.71752.17161.09272.30973.46072.84822.63243.77842.81764.39802.5232
H83.67783.29352.19431.10242.18124.57582.63242.41421.78162.72074.7245
H92.41972.97892.86582.19101.10034.16553.77842.41423.08411.79534.7393
H103.14172.96002.17491.10592.19334.21842.81761.78163.08412.44784.4325
H112.43053.48853.39122.22211.09974.76294.39802.72071.79532.44785.3808
H123.49641.89912.54183.99144.41590.97032.52324.72454.73934.43255.3808

picture of 4,5-dihydrothiophene-2-ol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 115.172 S1 C2 O6 114.986
S1 C5 C4 106.459 S1 C5 H9 107.948
S1 C5 H11 108.760 C2 S1 C5 88.752
C2 C3 C4 112.574 C2 C3 H7 123.656
C2 O6 H12 107.786 C3 C2 O6 129.829
C3 C4 C5 105.173 C3 C4 H8 112.694
C3 C4 H10 110.920 C4 C3 H7 123.519
C4 C5 H9 110.784 C4 C5 H11 113.316
C5 C4 H8 109.887 C5 C4 H10 110.630
H8 C4 H10 107.563 H9 C5 H11 109.384
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 -0.062      
2 C -0.116      
3 C -0.297      
4 C -0.189      
5 C -0.407      
6 O -0.302      
7 H 0.300      
8 H 0.145      
9 H 0.181      
10 H 0.149      
11 H 0.192      
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
  0.818 2.490 0.042 2.621
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.987 -5.122 0.842
y -5.122 -40.644 -0.059
z 0.842 -0.059 -43.878
Traceless
 xyz
x 6.275 -5.122 0.842
y -5.122 -0.712 -0.059
z 0.842 -0.059 -5.563
Polar
3z2-r2-11.125
x2-y24.658
xy-5.122
xz0.842
yz-0.059


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.253 0.427 0.144
y 0.427 10.572 0.226
z 0.144 0.226 5.479


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