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

using model chemistry: B1B95/CEP-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 B1B95/CEP-31G
 hartrees
Energy at 0K-35.042278
Energy at 298.15K-35.048117
Nuclear repulsion energy62.499612
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 B1B95/CEP-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 3218 3081 17.49      
2 A 3203 3066 12.96      
3 A 3086 2955 27.04      
4 A 1474 1411 0.32      
5 A 1460 1398 15.16      
6 A 1371 1313 0.64      
7 A 980 939 13.60      
8 A 977 935 0.62      
9 A 673 644 0.32      
10 A 449 430 0.01      
11 A 199 191 1.54      
12 A 141 135 0.03      
13 A 81 78 2.18      
14 B 3217 3081 23.61      
15 B 3202 3066 12.26      
16 B 3085 2953 30.56      
17 B 1477 1414 29.70      
18 B 1457 1395 18.04      
19 B 1365 1307 1.02      
20 B 981 939 29.05      
21 B 973 932 7.47      
22 B 672 643 1.23      
23 B 222 212 2.59      
24 B 148 141 0.63      

Unscaled Zero Point Vibrational Energy (zpe) 17053.1 cm-1
Scaled (by 0.9575) Zero Point Vibrational Energy (zpe) 16328.3 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 B1B95/CEP-31G
ABC
0.25027 0.08097 0.07634

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/CEP-31G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.502 0.998 -0.502
S2 0.502 -0.998 -0.502
C3 0.502 1.914 0.812
C4 -0.502 -1.914 0.812
H5 0.104 2.940 0.829
H6 0.372 1.449 1.798
H7 1.563 1.930 0.531
H8 -0.104 -2.940 0.829
H9 -0.372 -1.449 1.798
H10 -1.563 -1.930 0.531

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.23511.89003.19502.43032.50162.48934.17603.36153.2814
S22.23513.19501.89004.17603.36153.28142.43032.50162.4893
C31.89003.19503.95721.10061.09821.09734.89123.61204.3722
C43.19501.89003.95724.89123.61204.37221.10061.09821.0973
H52.43034.17601.10064.89121.79821.79915.88304.51975.1554
H62.50163.36151.09823.61201.79821.80444.51972.99224.0947
H72.48933.28141.09734.37221.79911.80445.15544.09474.9664
H84.17602.43034.89121.10065.88304.51975.15541.79821.7991
H93.36152.50163.61201.09824.51972.99224.09471.79821.8044
H103.28142.48934.37221.09735.15544.09474.96641.79911.8044

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 101.197 S1 C3 H5 105.661
S1 C3 H6 110.889 S1 C3 H7 110.028
S2 S1 C3 101.197 S2 C4 H8 105.661
S2 C4 H9 110.889 S2 C4 H10 110.028
H5 C3 H6 109.735 H5 C3 H7 109.881
H6 C3 H7 110.536 H8 C4 H9 109.735
H8 C4 H10 109.881 H9 C4 H10 110.536
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.001      
2 S -0.001      
3 C -0.602      
4 C -0.602      
5 H 0.196      
6 H 0.195      
7 H 0.212      
8 H 0.196      
9 H 0.195      
10 H 0.212      


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 2.644 2.644
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.359 2.524 0.000
y 2.524 -33.295 0.000
z 0.000 0.000 -39.919
Traceless
 xyz
x -3.752 2.524 0.000
y 2.524 6.844 0.000
z 0.000 0.000 -3.092
Polar
3z2-r2-6.184
x2-y2-7.063
xy2.524
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.338 -0.652 0.000
y -0.652 11.950 0.000
z 0.000 0.000 6.657


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000