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

using model chemistry: B1B95/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-876.263300
Energy at 298.15K-876.269380
Nuclear repulsion energy 
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/aug-cc-pVDZ
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 3186 3052 3.48      
2 A 3168 3035 5.89      
3 A 3068 2939 16.99      
4 A 1436 1375 0.53      
5 A 1429 1369 6.43      
6 A 1313 1257 0.42      
7 A 957 917 2.80      
8 A 949 909 0.06      
9 A 711 681 0.04      
10 A 515 493 0.48      
11 A 229 219 1.01      
12 A 152 146 0.11      
13 A 99 95 1.29      
14 B 3186 3052 6.40      
15 B 3168 3035 4.89      
16 B 3067 2938 20.95      
17 B 1440 1380 15.96      
18 B 1418 1359 10.33      
19 B 1299 1245 4.25      
20 B 954 914 12.44      
21 B 942 903 1.58      
22 B 710 680 3.22      
23 B 259 248 1.04      
24 B 152 146 0.34      

Unscaled Zero Point Vibrational Energy (zpe) 16903.8 cm-1
Scaled (by 0.9579) Zero Point Vibrational Energy (zpe) 16192.1 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/aug-cc-pVDZ
ABC
0.27040 0.09214 0.08465

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/aug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.455 0.925 -0.498
S2 0.455 -0.925 -0.498
C3 0.455 1.809 0.802
C4 -0.455 -1.809 0.802
H5 0.052 2.828 0.817
H6 0.293 1.347 1.779
H7 1.521 1.842 0.565
H8 -0.052 -2.828 0.817
H9 -0.293 -1.347 1.779
H10 -1.521 -1.842 0.565

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.06221.81683.02742.36792.43442.42493.99703.22143.1508
S22.06223.02741.81683.99703.22143.15082.36792.43442.4249
C31.81683.02743.73061.09591.09331.09264.66443.38754.1588
C43.02741.81683.73064.66443.38754.15881.09591.09331.0926
H52.36793.99701.09594.66441.78241.78685.65654.29834.9347
H62.43443.22141.09333.38751.78241.79704.29832.75713.8651
H72.42493.15081.09264.15881.78681.79704.93473.86514.7789
H83.99702.36794.66441.09595.65654.29834.93471.78241.7868
H93.22142.43443.38751.09334.29832.75713.86511.78241.7970
H103.15082.42494.15881.09264.93473.86514.77891.78681.7970

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 102.420 S1 C3 H5 106.115
S1 C3 H6 111.099 S1 C3 H7 110.427
S2 S1 C3 102.420 S2 C4 H8 106.115
S2 C4 H9 111.099 S2 C4 H10 110.427
H5 C3 H6 109.020 H5 C3 H7 109.469
H6 C3 H7 110.592 H8 C4 H9 109.020
H8 C4 H10 109.469 H9 C4 H10 110.592
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.042      
2 S 0.042      
3 C 0.444      
4 C 0.444      
5 H -0.175      
6 H -0.181      
7 H -0.130      
8 H -0.175      
9 H -0.181      
10 H -0.130      


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 2.099 2.099
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.892 0.023 0.000
y 0.023 13.051 0.000
z 0.000 0.000 9.420


<r2> (average value of r2) Å2
<r2> 155.431
(<r2>)1/2 12.467