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 (Dihydro-3-(2H)-thiophenone)

using model chemistry: HF/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 HF/CEP-31G
 hartrees
Energy at 0K-50.933363
Energy at 298.15K-50.941035
Nuclear repulsion energy120.030803
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 HF/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 3365 3034 27.95      
2 A 3360 3029 5.10      
3 A 3326 2998 22.72      
4 A 3285 2962 10.70      
5 A 3284 2960 64.44      
6 A 3247 2927 20.32      
7 A 1873 1689 230.74      
8 A 1634 1473 2.96      
9 A 1604 1445 11.90      
10 A 1600 1442 14.11      
11 A 1466 1321 12.33      
12 A 1429 1288 19.50      
13 A 1383 1246 32.10      
14 A 1355 1221 16.77      
15 A 1303 1175 9.91      
16 A 1278 1152 25.30      
17 A 1192 1074 2.25      
18 A 1093 985 0.89      
19 A 1083 976 9.98      
20 A 976 880 10.47      
21 A 922 831 0.77      
22 A 847 763 4.86      
23 A 794 716 8.96      
24 A 708 638 4.79      
25 A 612 551 4.12      
26 A 504 454 11.49      
27 A 481 434 0.18      
28 A 459 414 14.85      
29 A 176 158 1.93      
30 A 60 54 21.29      

Unscaled Zero Point Vibrational Energy (zpe) 22348.5 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 20145.0 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 HF/CEP-31G
ABC
0.18225 0.08010 0.05853

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.938 -0.030 -0.023
C2 0.006 -1.221 -0.252
H3 0.409 -2.102 0.237
H4 -0.027 -1.415 -1.323
C5 -1.396 -0.844 0.262
H6 -1.485 -0.981 1.334
H7 -2.188 -1.389 -0.235
C8 0.221 1.327 0.011
S9 -1.618 0.992 -0.141
H10 0.549 1.943 -0.818
O11 2.154 -0.129 0.120
H12 0.445 1.839 0.939

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 H6 H7 C8 S9 H10 O11 H12
C11.52962.15442.13082.48852.93603.41521.53542.75542.16301.22812.1591
C21.52961.08541.08941.54012.19032.20022.57012.74673.26002.43813.3123
H32.15441.08541.76012.20032.45932.73393.44163.71794.18322.63684.0030
H42.13081.08941.76012.17123.06232.41943.05873.11763.44442.91413.9907
C52.48851.54012.20032.17121.08441.08232.71811.89243.56623.62423.3228
H62.93602.19032.45933.06231.08441.76713.16052.46704.16203.93043.4396
H73.41522.20022.73392.41941.08231.76713.63802.44974.35124.53494.3271
C81.53542.57013.44163.05872.71813.16053.63801.87491.08362.42291.0839
S92.75542.74673.71793.11761.89242.46702.44971.87492.46143.94372.4774
H102.16303.26004.18323.44443.56624.16204.35121.08362.46142.78411.7634
O111.22812.43812.63682.91413.62423.93044.53492.42293.94372.78412.7327
H122.15913.31234.00303.99073.32283.43964.32711.08392.47741.76342.7327

picture of Dihydro-3-(2H)-thiophenone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H3 109.773 C1 C2 H4 107.714
C1 C2 C5 108.317 C1 C8 S9 107.380
C1 C8 H10 110.164 C1 C8 H12 109.835
C2 C1 C8 113.970 C2 C1 O11 123.917
C2 C5 H6 111.965 C2 C5 H7 112.903
C2 C5 S9 105.844 H3 C2 H4 108.059
H3 C2 C5 112.719 H4 C2 C5 110.142
C5 S9 C8 92.359 H6 C5 H7 109.286
H6 C5 S9 108.895 H7 C5 S9 107.744
C8 C1 O11 122.113 S9 C8 H10 109.694
S9 C8 H12 110.864 H10 C8 H12 108.896
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.108      
2 C -0.014      
3 H 0.160      
4 H 0.135      
5 C -0.456      
6 H 0.157      
7 H 0.182      
8 C -0.385      
9 S 0.134      
10 H 0.187      
11 O -0.177      
12 H 0.185      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.861 -1.327 -0.027 2.286
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -56.330 5.891 -1.502
y 5.891 -39.934 0.126
z -1.502 0.126 -41.919
Traceless
 xyz
x -15.403 5.891 -1.502
y 5.891 9.190 0.126
z -1.502 0.126 6.213
Polar
3z2-r212.427
x2-y2-16.396
xy5.891
xz-1.502
yz0.126


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.950 0.044 0.322
y 0.044 8.856 -0.401
z 0.322 -0.401 5.299


<r2> (average value of r2) Å2
<r2> 135.744
(<r2>)1/2 11.651