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

using model chemistry: B1B95/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B1B95/6-311G**
 hartrees
Energy at 0K-876.284787
Energy at 298.15K-876.291001
Nuclear repulsion energy221.650037
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 B1B95/6-311G**
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 3166 3039 4.35      
2 A 3151 3025 8.13      
3 A 3061 2939 20.60      
4 A 1465 1406 5.20      
5 A 1464 1406 3.04      
6 A 1364 1310 2.05      
7 A 993 954 8.89      
8 A 976 938 0.24      
9 A 709 681 0.17      
10 A 496 476 0.36      
11 A 234 225 1.80      
12 A 183 175 0.02      
13 A 114 110 1.25      
14 B 3164 3038 10.28      
15 B 3148 3023 5.59      
16 B 3058 2936 19.05      
17 B 1469 1411 21.89      
18 B 1453 1395 12.14      
19 B 1352 1298 3.43      
20 B 984 945 20.34      
21 B 975 936 6.13      
22 B 708 680 2.86      
23 B 262 251 1.91      
24 B 177 170 0.45      

Unscaled Zero Point Vibrational Energy (zpe) 17062.4 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 16381.6 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 B1B95/6-311G**
ABC
0.27027 0.09250 0.08507

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.457 0.925 -0.498
S2 0.457 -0.925 -0.498
C3 0.457 1.801 0.800
C4 -0.457 -1.801 0.800
H5 0.051 2.813 0.830
H6 0.312 1.333 1.772
H7 1.517 1.845 0.560
H8 -0.051 -2.813 0.830
H9 -0.312 -1.333 1.772
H10 -1.517 -1.845 0.560

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.06431.81343.01982.36332.43112.42123.98803.20563.1490
S22.06433.01981.81343.98803.20563.14902.36332.43112.4212
C31.81343.01983.71671.09071.08861.08774.64243.37064.1533
C43.01981.81343.71674.64243.37064.15331.09071.08861.0877
H52.36333.98801.09074.64241.77361.77745.62724.26764.9224
H62.43113.20561.08863.37061.77361.78484.26762.73843.8620
H72.42123.14901.08774.15331.77741.78484.92243.86204.7772
H83.98802.36334.64241.09075.62724.26764.92241.77361.7774
H93.20562.43113.37061.08864.26762.73843.86201.77361.7848
H103.14902.42124.15331.08774.92243.86204.77721.77741.7848

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 102.100 S1 C3 H5 106.252
S1 C3 H6 111.347 S1 C3 H7 110.643
S2 S1 C3 102.100 S2 C4 H8 106.252
S2 C4 H9 111.347 S2 C4 H10 110.643
H5 C3 H6 108.950 H5 C3 H7 109.355
H6 C3 H7 110.190 H8 C4 H9 108.950
H8 C4 H10 109.355 H9 C4 H10 110.190
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.010      
2 S 0.010      
3 C -0.506      
4 C -0.506      
5 H 0.162      
6 H 0.159      
7 H 0.175      
8 H 0.162      
9 H 0.159      
10 H 0.175      


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 2.237 2.237
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.766 1.757 0.000
y 1.757 -35.565 0.000
z 0.000 0.000 -41.284
Traceless
 xyz
x -3.342 1.757 0.000
y 1.757 5.960 0.000
z 0.000 0.000 -2.618
Polar
3z2-r2-5.237
x2-y2-6.201
xy1.757
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.254 -0.290 0.000
y -0.290 11.543 0.000
z 0.000 0.000 7.747


<r2> (average value of r2) Å2
<r2> 155.120
(<r2>)1/2 12.455