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 CH3SSCH3 (Disulfide, dimethyl)

using model chemistry: PBEPBE/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at PBEPBE/cc-pVTZ
 hartrees
Energy at 0K-875.820060
Energy at 298.15K-875.826063
Nuclear repulsion energy219.881507
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 PBEPBE/cc-pVTZ
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 3077 3056 5.01      
2 A 3059 3038 7.47      
3 A 2975 2954 14.45      
4 A 1422 1412 0.47      
5 A 1408 1399 5.80      
6 A 1285 1277 0.38      
7 A 935 929 3.33      
8 A 927 921 0.61      
9 A 665 660 0.07      
10 A 494 491 0.65      
11 A 223 221 0.85      
12 A 157 156 0.17      
13 A 107 107 1.21      
14 B 3077 3056 7.12      
15 B 3060 3039 4.37      
16 B 2973 2953 22.83      
17 B 1425 1415 16.73      
18 B 1403 1393 10.82      
19 B 1279 1270 4.61      
20 B 932 926 12.68      
21 B 923 917 2.34      
22 B 665 661 5.54      
23 B 252 250 0.87      
24 B 154 153 0.36      

Unscaled Zero Point Vibrational Energy (zpe) 16438.5 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 16325.1 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 PBEPBE/cc-pVTZ
ABC
0.27419 0.08937 0.08262

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.455 0.924 -0.492
S2 0.455 -0.924 -0.492
C3 0.455 1.859 0.793
C4 -0.455 -1.859 0.793
H5 0.049 2.880 0.763
H6 0.286 1.434 1.789
H7 1.525 1.884 0.561
H8 -0.049 -2.880 0.763
H9 -0.286 -1.434 1.789
H10 -1.525 -1.884 0.561

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.06001.83113.06572.37772.45232.43934.02653.28573.1849
S22.06003.06571.83114.02653.28573.18492.37772.45232.4393
C31.83113.06573.82761.09921.09611.09554.76583.51934.2409
C43.06571.83113.82764.76583.51934.24091.09921.09611.0955
H52.37774.02651.09924.76581.78901.79225.76084.44715.0215
H62.45233.28571.09613.51931.78901.80184.44712.92463.9749
H72.43933.18491.09554.24091.79221.80185.02153.97494.8482
H84.02652.37774.76581.09925.76084.44715.02151.78901.7922
H93.28572.45233.51931.09614.44712.92463.97491.78901.8018
H103.18492.43934.24091.09555.02153.97494.84821.79221.8018

picture of Disulfide, dimethyl state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S2 C4 103.824 S1 C3 H5 105.752
S1 C3 H6 111.325 S1 C3 H7 110.384
S2 S1 C3 103.824 S2 C4 H8 105.752
S2 C4 H9 111.325 S2 C4 H10 110.384
H5 C3 H6 109.163 H5 C3 H7 109.492
H6 C3 H7 110.595 H8 C4 H9 109.163
H8 C4 H10 109.492 H9 C4 H10 110.595
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.065      
2 S -0.065      
3 C -0.271      
4 C -0.271      
5 H 0.105      
6 H 0.111      
7 H 0.121      
8 H 0.105      
9 H 0.111      
10 H 0.121      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 1.980 1.980
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.255 1.472 0.000
y 1.472 -35.231 0.000
z 0.000 0.000 -40.878
Traceless
 xyz
x -3.201 1.472 0.000
y 1.472 5.836 0.000
z 0.000 0.000 -2.635
Polar
3z2-r2-5.270
x2-y2-6.024
xy1.472
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.975 0.055 0.000
y 0.055 13.061 0.000
z 0.000 0.000 8.585


<r2> (average value of r2) Å2
<r2> 158.458
(<r2>)1/2 12.588