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

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

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/6-31+G**
 hartrees
Energy at 0K-876.124207
Energy at 298.15K-876.130057
Nuclear repulsion energy216.003648
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/6-31+G**
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 3062 6.94      
2 A 3061 3045 7.60      
3 A 2977 2961 18.64      
4 A 1443 1436 0.42      
5 A 1429 1422 7.18      
6 A 1316 1309 2.18      
7 A 945 940 3.94      
8 A 940 935 0.83      
9 A 631 628 0.01      
10 A 448 445 0.56      
11 A 215 214 1.13      
12 A 140 139 0.07      
13 A 98 98 1.44      
14 B 3077 3061 9.59      
15 B 3061 3045 6.49      
16 B 2975 2959 28.49      
17 B 1447 1439 22.40      
18 B 1424 1417 12.21      
19 B 1310 1303 6.10      
20 B 945 940 13.41      
21 B 935 930 1.95      
22 B 631 628 3.98      
23 B 244 242 0.96      
24 B 148 147 0.45      

Unscaled Zero Point Vibrational Energy (zpe) 16458.8 cm-1
Scaled (by 0.9947) Zero Point Vibrational Energy (zpe) 16371.6 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/6-31+G**
ABC
0.26680 0.08556 0.07941

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.055 -0.497
S2 0.000 -1.055 -0.497
C3 1.254 1.501 0.802
C4 -1.254 -1.501 0.802
H5 1.333 2.599 0.773
H6 0.924 1.188 1.803
H7 2.231 1.057 0.564
H8 -1.333 -2.599 0.773
H9 -0.924 -1.188 1.803
H10 -2.231 -1.057 0.564

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.11011.86013.12932.40242.48192.47044.09153.34283.2504
S22.11013.12931.86014.09153.34283.25042.40242.48192.4704
C31.86013.12933.91171.10171.09891.09854.84763.60234.3299
C43.12931.86013.91174.84763.60234.32991.10171.09891.0985
H52.40244.09151.10174.84761.79381.79655.84144.52735.1099
H62.48193.34281.09893.60231.79381.80524.52733.01064.0659
H72.47043.25041.09854.32991.79651.80525.10994.06594.9377
H84.09152.40244.84761.10175.84144.52735.10991.79381.7965
H93.34282.48193.60231.09894.52733.01064.06591.79381.8052
H103.25042.47044.32991.09855.10994.06594.93771.79651.8052

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 103.856 S1 C3 H5 105.541
S1 C3 H6 111.412 S1 C3 H7 110.579
S2 S1 C3 103.856 S2 C4 H8 105.541
S2 C4 H9 111.412 S2 C4 H10 110.579
H5 C3 H6 109.211 H5 C3 H7 109.482
H6 C3 H7 110.480 H8 C4 H9 109.211
H8 C4 H10 109.482 H9 C4 H10 110.480
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.052      
2 S 0.052      
3 C -0.602      
4 C -0.602      
5 H 0.178      
6 H 0.180      
7 H 0.192      
8 H 0.178      
9 H 0.180      
10 H 0.192      


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 2.144 2.144
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.669 3.628 0.000
y 3.628 -38.518 0.000
z 0.000 0.000 -41.871
Traceless
 xyz
x 0.525 3.628 0.000
y 3.628 2.253 0.000
z 0.000 0.000 -2.778
Polar
3z2-r2-5.556
x2-y2-1.152
xy3.628
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> 164.257
(<r2>)1/2 12.816