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 C3H4O2S (2H-Thiete-1,1-dioxide)

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-59.979823
Energy at 298.15K-59.986074
Nuclear repulsion energy123.429464
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 3459 3107 1.35      
2 A 3417 3068 3.43      
3 A 3292 2956 14.06      
4 A 1775 1594 6.21      
5 A 1599 1436 1.43      
6 A 1403 1260 58.47      
7 A 1340 1204 17.66      
8 A 1232 1107 250.46      
9 A 1134 1018 14.46      
10 A 1031 926 2.38      
11 A 936 841 6.62      
12 A 845 759 45.32      
13 A 701 630 30.38      
14 A 472 424 36.93      
15 A 459 412 33.74      
16 A 3371 3027 7.29      
17 A 1409 1265 329.11      
18 A 1187 1066 0.77      
19 A 1028 923 5.19      
20 A 1020 916 0.55      
21 A 803 721 87.58      
22 A 466 419 0.28      
23 A 293 263 0.32      
24 A 218 195 1.75      

Unscaled Zero Point Vibrational Energy (zpe) 16444.7 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 14767.3 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 HF/CEP-31G*
ABC
0.18134 0.10045 0.09511

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.240 0.519 0.000
O2 0.592 1.164 1.245
O3 0.592 1.164 -1.245
C4 -1.392 -0.198 0.000
H5 -2.368 0.257 0.000
C6 -0.928 -1.460 0.000
H7 -1.473 -2.391 0.000
C8 0.592 -1.276 0.000
H9 1.106 -1.604 0.899
H10 1.106 -1.604 -0.899

Atom - Atom Distances (Å)
  S1 O2 O3 C4 H5 C6 H7 C8 H9 H10
S11.44541.44541.78272.62132.29783.37661.82852.46222.4622
O21.44542.48932.70933.33653.27784.29552.73882.83653.5384
O31.44542.48932.70933.33653.27784.29552.73883.53842.8365
C41.78272.70932.70931.07681.34472.19462.25793.00393.0039
H52.62133.33653.33651.07682.24112.79533.33334.04214.0421
C62.29783.27783.27781.34472.24111.07891.53102.22802.2280
H73.37664.29554.29552.19462.79531.07892.34702.84202.8420
C81.82852.73882.73882.25793.33331.53102.34701.08601.0860
H92.46222.83653.53843.00394.04212.22802.84201.08601.7974
H102.46223.53842.83653.00394.04212.22802.84201.08601.7974

picture of 2H-Thiete-1,1-dioxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C4 H5 131.296 S1 C4 C6 93.509
S1 C8 C6 85.824 S1 C8 H9 112.814
S1 C8 H10 112.814 O2 S1 O3 118.880
O2 S1 C4 113.716 O2 S1 C8 113.038
O3 S1 C4 113.716 O3 S1 C8 113.038
C4 S1 C8 77.389 C4 C6 H7 129.458
C4 C6 C8 103.277 H5 C4 C6 135.195
C6 C8 H9 115.670 C6 C8 H10 115.670
H7 C6 C8 127.265 H9 C8 H10 111.690
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.574      
2 O -0.459      
3 O -0.459      
4 C -0.152      
5 H 0.303      
6 C -0.280      
7 H 0.284      
8 C -0.171      
9 H 0.180      
10 H 0.180      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.527 -5.414 0.000 5.975
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.567 -3.724 0.000
y -3.724 -40.552 0.000
z 0.000 0.000 -48.494
Traceless
 xyz
x 7.956 -3.724 0.000
y -3.724 1.978 0.000
z 0.000 0.000 -9.934
Polar
3z2-r2-19.868
x2-y23.986
xy-3.724
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.883 0.039 0.000
y 0.039 8.498 0.000
z 0.000 0.000 5.572


<r2> (average value of r2) Å2
<r2> 117.721
(<r2>)1/2 10.850