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All results from a given calculation for CH3SSCH3 (Disulfide, dimethyl)

using model chemistry: BLYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at BLYP/6-31G(2df,p)
 hartrees
Energy at 0K-876.129951
Energy at 298.15K-876.135859
Nuclear repulsion energy217.469978
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 BLYP/6-31G(2df,p)
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 3078 3061 6.34      
2 A 3058 3041 7.62      
3 A 2975 2958 13.06      
4 A 1438 1430 0.64      
5 A 1424 1416 3.18      
6 A 1299 1291 4.21      
7 A 936 931 3.54      
8 A 931 926 0.72      
9 A 637 634 0.01      
10 A 468 466 0.52      
11 A 219 218 0.85      
12 A 152 151 0.12      
13 A 103 103 1.37      
14 B 3077 3060 8.46      
15 B 3058 3041 5.72      
16 B 2973 2957 21.47      
17 B 1440 1432 12.97      
18 B 1418 1411 6.66      
19 B 1290 1283 15.23      
20 B 936 930 14.66      
21 B 925 920 2.23      
22 B 637 634 3.39      
23 B 247 245 1.07      
24 B 151 150 0.37      

Unscaled Zero Point Vibrational Energy (zpe) 16433.3 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 16342.9 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 BLYP/6-31G(2df,p)
ABC
0.26984 0.08690 0.08054

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G(2df,p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.461 0.935 -0.495
S2 0.461 -0.935 -0.495
C3 0.461 1.889 0.799
C4 -0.461 -1.889 0.799
H5 0.046 2.908 0.767
H6 0.298 1.462 1.797
H7 1.531 1.919 0.561
H8 -0.046 -2.908 0.767
H9 -0.298 -1.462 1.797
H10 -1.531 -1.919 0.561

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.08551.85263.10692.39602.47102.46014.06683.32073.2267
S22.08553.10691.85264.06683.32073.22672.39602.47102.4601
C31.85263.10693.88921.10081.09771.09714.82443.57834.3046
C43.10691.85263.88924.82443.57834.30461.10081.09771.0971
H52.39604.06681.10084.82441.79351.79645.81754.50355.0830
H62.47103.32071.09773.57831.79351.80434.50352.98474.0385
H72.46013.22671.09714.30461.79641.80435.08304.03854.9108
H84.06682.39604.82441.10085.81754.50355.08301.79351.7964
H93.32072.47103.57831.09774.50352.98474.03851.79351.8043
H103.22672.46014.30461.09715.08304.03854.91081.79641.8043

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 104.012 S1 C3 H5 105.595
S1 C3 H6 111.169 S1 C3 H7 110.388
S2 S1 C3 104.012 S2 C4 H8 105.595
S2 C4 H9 111.169 S2 C4 H10 110.388
H5 C3 H6 109.331 H5 C3 H7 109.637
H6 C3 H7 110.590 H8 C4 H9 109.331
H8 C4 H10 109.637 H9 C4 H10 110.590
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.081      
2 S -0.081      
3 C -0.324      
4 C -0.324      
5 H 0.133      
6 H 0.130      
7 H 0.141      
8 H 0.133      
9 H 0.130      
10 H 0.141      


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 2.078 2.078
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.842 1.707 0.000
y 1.707 -34.675 0.000
z 0.000 0.000 -40.393
Traceless
 xyz
x -3.308 1.707 0.000
y 1.707 5.943 0.000
z 0.000 0.000 -2.634
Polar
3z2-r2-5.269
x2-y2-6.167
xy1.707
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.385 -0.113 0.000
y -0.113 12.301 0.000
z 0.000 0.000 7.838


<r2> (average value of r2) Å2
<r2> 161.496
(<r2>)1/2 12.708