return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C4H6OS (4,5-dihydrothiophene-3-ol)

using model chemistry: B3LYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/6-31G*
 hartrees
Energy at 0K-629.415471
Energy at 298.15K-629.422576
Nuclear repulsion energy287.372820
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 B3LYP/6-31G*
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 3750 3601 38.74      
2 A 3259 3130 6.24      
3 A 3153 3027 11.31      
4 A 3086 2963 33.35      
5 A 3046 2925 19.54      
6 A 3011 2892 46.39      
7 A 1733 1665 31.52      
8 A 1519 1459 2.33      
9 A 1502 1443 1.52      
10 A 1385 1330 107.82      
11 A 1332 1279 34.07      
12 A 1307 1255 51.01      
13 A 1252 1202 1.72      
14 A 1206 1159 12.60      
15 A 1177 1130 86.10      
16 A 1158 1112 17.39      
17 A 1025 985 2.17      
18 A 997 957 0.89      
19 A 919 882 18.33      
20 A 824 792 25.46      
21 A 815 782 10.13      
22 A 794 763 32.95      
23 A 678 651 2.91      
24 A 542 521 2.16      
25 A 503 483 1.34      
26 A 450 432 8.44      
27 A 377 362 4.85      
28 A 260 250 54.57      
29 A 224 215 63.90      
30 A 153 147 3.78      

Unscaled Zero Point Vibrational Energy (zpe) 20718.2 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 19895.7 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 B3LYP/6-31G*
ABC
0.19917 0.07836 0.05815

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -1.565 -0.549 -0.079
C2 0.113 -1.125 0.077
C3 1.034 -0.155 0.017
C4 0.491 1.241 -0.197
C5 -0.988 1.190 0.219
O6 2.383 -0.394 0.009
H7 0.316 -2.185 0.164
H8 1.033 1.994 0.391
H9 -1.618 1.880 -0.346
H10 0.600 1.520 -1.257
H11 -1.096 1.404 1.287
H12 2.845 0.420 0.258

Atom - Atom Distances (Å)
  S1 C2 C3 C4 C5 O6 H7 H8 H9 H10 H11 H12
S11.78112.63012.72821.85653.95142.50433.66612.44413.21842.42884.5280
C21.78111.33842.41122.56802.38491.08243.26733.49373.00203.05303.1438
C32.63011.33841.51302.43741.36982.15772.18203.36252.14842.92901.9160
C42.72822.41121.51301.53742.50893.44881.09962.20871.10122.17842.5349
C51.85652.56802.43741.53743.73083.61872.18251.09152.19351.09423.9106
O63.95142.38491.36982.50893.73082.73882.76994.61562.90554.11880.9692
H72.50431.08242.15773.44883.61872.73884.24624.53003.97814.01633.6320
H83.66613.26732.18201.09962.18252.76994.24622.75461.76902.38372.4042
H92.44413.49373.36252.20871.09154.61564.53002.75462.42521.77944.7350
H103.21843.00202.14841.10122.19352.90553.97811.76902.42523.05942.9232
H112.42883.05302.92902.17841.09424.11884.01632.38371.77943.05944.1902
H124.52803.14381.91602.53493.91060.96923.63202.40424.73502.92324.1902

picture of 4,5-dihydrothiophene-3-ol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 114.194 S1 C2 H7 119.992
S1 C5 C4 106.618 S1 C5 H9 109.245
S1 C5 H11 107.997 C2 S1 C5 89.792
C2 C3 C4 115.340 C2 C3 O6 123.437
C3 C2 H7 125.755 C3 C4 C5 106.073
C3 C4 H8 112.310 C3 C4 H10 109.525
C3 O6 H12 108.793 C4 C3 C5 37.308
C4 C5 H9 113.220 C4 C5 H11 110.614
C5 C4 H8 110.620 C5 C4 H10 111.390
H8 C4 H10 106.986 H9 C5 H11 108.995
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.122      
2 C -0.352      
3 C 0.363      
4 C -0.338      
5 C -0.424      
6 O -0.620      
7 H 0.169      
8 H 0.143      
9 H 0.178      
10 H 0.170      
11 H 0.184      
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
  1.440 2.785 0.573 3.187
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.763 2.187 1.099
y 2.187 -39.012 0.264
z 1.099 0.264 -44.388
Traceless
 xyz
x -1.062 2.187 1.099
y 2.187 4.563 0.264
z 1.099 0.264 -3.501
Polar
3z2-r2-7.001
x2-y2-3.750
xy2.187
xz1.099
yz0.264


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.708 1.016 0.141
y 1.016 9.401 -0.005
z 0.141 -0.005 5.585


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