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: B3LYP/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3LYP/cc-pVDZ
 hartrees
Energy at 0K-876.246444
Energy at 298.15K-876.252433
Nuclear repulsion energy218.347799
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/cc-pVDZ
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 3150 3056 5.05      
2 A 3133 3039 6.93      
3 A 3039 2948 16.42      
4 A 1446 1402 0.40      
5 A 1432 1389 5.67      
6 A 1318 1278 2.37      
7 A 955 926 4.27      
8 A 951 923 0.70      
9 A 678 658 0.07      
10 A 484 470 0.47      
11 A 226 219 1.04      
12 A 141 137 0.16      
13 A 98 95 1.18      
14 B 3150 3055 8.30      
15 B 3133 3039 4.50      
16 B 3037 2946 24.78      
17 B 1449 1406 16.51      
18 B 1427 1385 9.98      
19 B 1310 1271 10.65      
20 B 956 928 14.59      
21 B 946 918 2.66      
22 B 678 657 3.24      
23 B 257 249 1.25      
24 B 149 145 0.35      

Unscaled Zero Point Vibrational Energy (zpe) 16772.0 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 16268.9 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 B3LYP/cc-pVDZ
ABC
0.26904 0.08824 0.08192

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.046 -0.494
S2 0.000 -1.046 -0.494
C3 1.242 1.459 0.796
C4 -1.242 -1.459 0.796
H5 1.323 2.558 0.791
H6 0.912 1.126 1.790
H7 2.217 1.018 0.548
H8 -1.323 -2.558 0.791
H9 -0.912 -1.126 1.790
H10 -2.217 -1.018 0.548

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.09251.83733.07912.38422.46032.45004.04823.28083.2035
S22.09253.07911.83734.04823.28083.20352.38422.46032.4500
C31.83733.07913.83181.10181.09941.09874.76553.50804.2619
C43.07911.83733.83184.76553.50804.26191.10181.09941.0987
H52.38424.04821.10184.76551.79381.79735.75894.42245.0375
H62.46033.28081.09943.50801.79381.80554.42242.89713.9912
H72.45003.20351.09874.26191.79731.80555.03753.99124.8798
H84.04822.38424.76551.10185.75894.42245.03751.79381.7973
H93.28082.46033.50801.09944.42242.89713.99121.79381.8055
H103.20352.45004.26191.09875.03753.99124.87981.79731.8055

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 102.972 S1 C3 H5 105.683
S1 C3 H6 111.318 S1 C3 H7 110.586
S2 S1 C3 102.972 S2 C4 H8 105.683
S2 C4 H9 111.318 S2 C4 H10 110.586
H5 C3 H6 109.156 H5 C3 H7 109.525
H6 C3 H7 110.446 H8 C4 H9 109.156
H8 C4 H10 109.525 H9 C4 H10 110.446
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.068      
2 S -0.068      
3 C -0.115      
4 C -0.115      
5 H 0.058      
6 H 0.058      
7 H 0.067      
8 H 0.058      
9 H 0.058      
10 H 0.067      


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 1.955 1.955
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.707 3.215 0.000
y 3.215 -37.417 0.000
z 0.000 0.000 -40.682
Traceless
 xyz
x 0.342 3.215 0.000
y 3.215 2.278 0.000
z 0.000 0.000 -2.620
Polar
3z2-r2-5.239
x2-y2-1.291
xy3.215
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 159.741
(<r2>)1/2 12.639