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

using model chemistry: BLYP/6-31G**

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**
 hartrees
Energy at 0K-876.118002
Energy at 298.15K-876.123843
Nuclear repulsion energy216.151887
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**
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 3090 3066 7.54      
2 A 3071 3047 9.42      
3 A 2985 2962 15.50      
4 A 1454 1442 0.51      
5 A 1439 1428 4.76      
6 A 1321 1311 4.40      
7 A 949 941 5.63      
8 A 943 936 1.49      
9 A 634 629 0.03      
10 A 452 448 0.30      
11 A 215 213 1.27      
12 A 136 134 0.08      
13 A 97 97 1.41      
14 B 3089 3065 11.63      
15 B 3070 3047 6.08      
16 B 2983 2960 21.71      
17 B 1457 1446 17.11      
18 B 1434 1423 8.37      
19 B 1313 1303 11.14      
20 B 949 941 17.65      
21 B 939 931 3.22      
22 B 635 630 3.07      
23 B 244 243 1.35      
24 B 144 143 0.42      

Unscaled Zero Point Vibrational Energy (zpe) 16520.8 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 16393.6 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**
ABC
0.26659 0.08582 0.07950

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.054 -0.498
S2 0.000 -1.054 -0.498
C3 1.249 1.500 0.804
C4 -1.249 -1.500 0.804
H5 1.320 2.598 0.782
H6 0.919 1.179 1.801
H7 2.228 1.064 0.565
H8 -1.320 -2.598 0.782
H9 -0.919 -1.179 1.801
H10 -2.228 -1.064 0.565

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.10861.85933.12762.40112.47952.46914.08943.33443.2536
S22.10863.12761.85934.08943.33443.25362.40112.47952.4691
C31.85933.12763.90391.10101.09811.09764.83683.58714.3273
C43.12761.85933.90394.83683.58714.32731.10101.09811.0976
H52.40114.08941.10104.83681.79301.79575.82854.50715.1039
H62.47953.33441.09813.58711.79301.80404.50712.98874.0573
H72.46913.25361.09764.32731.79571.80405.10394.05734.9387
H84.08942.40114.83681.10105.82854.50715.10391.79301.7957
H93.33442.47953.58711.09814.50712.98874.05731.79301.8040
H103.25362.46914.32731.09765.10394.05734.93871.79571.8040

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 103.862 S1 C3 H5 105.535
S1 C3 H6 111.326 S1 C3 H7 110.586
S2 S1 C3 103.862 S2 C4 H8 105.535
S2 C4 H9 111.326 S2 C4 H10 110.586
H5 C3 H6 109.239 H5 C3 H7 109.528
H6 C3 H7 110.492 H8 C4 H9 109.239
H8 C4 H10 109.528 H9 C4 H10 110.492
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.006      
2 S 0.006      
3 C -0.418      
4 C -0.418      
5 H 0.135      
6 H 0.133      
7 H 0.145      
8 H 0.135      
9 H 0.133      
10 H 0.145      


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 2.194 2.194
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.549 3.651 0.000
y 3.651 -37.566 0.000
z 0.000 0.000 -40.770
Traceless
 xyz
x 0.619 3.651 0.000
y 3.651 2.093 0.000
z 0.000 0.000 -2.712
Polar
3z2-r2-5.424
x2-y2-0.983
xy3.651
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> 163.342
(<r2>)1/2 12.781