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

using model chemistry: LSDA/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 LSDA/6-31G
 hartrees
Energy at 0K-873.581354
Energy at 298.15K-873.587182
Nuclear repulsion energy213.717626
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 LSDA/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 3141 3078 0.88      
2 A 3119 3056 7.62      
3 A 3010 2949 14.01      
4 A 1450 1421 0.01      
5 A 1440 1411 18.42      
6 A 1342 1315 0.56      
7 A 971 951 7.71      
8 A 962 942 4.64      
9 A 674 660 0.14      
10 A 443 434 0.07      
11 A 196 192 2.09      
12 A 139 136 0.03      
13 A 77 76 1.31      
14 B 3142 3079 5.29      
15 B 3123 3059 0.17      
16 B 3011 2950 5.20      
17 B 1456 1426 37.36      
18 B 1432 1403 22.29      
19 B 1333 1306 0.25      
20 B 970 950 27.91      
21 B 964 944 10.16      
22 B 674 660 2.74      
23 B 231 226 2.90      
24 B 150 147 0.62      

Unscaled Zero Point Vibrational Energy (zpe) 16724.8 cm-1
Scaled (by 0.9797) Zero Point Vibrational Energy (zpe) 16385.3 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 LSDA/6-31G
ABC
0.24247 0.08795 0.07964

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.475 1.000 -0.534
S2 0.475 -1.000 -0.534
C3 0.475 1.792 0.861
C4 -0.475 -1.792 0.861
H5 0.068 2.811 0.969
H6 0.320 1.236 1.799
H7 1.544 1.839 0.613
H8 -0.068 -2.811 0.969
H9 -0.320 -1.236 1.799
H10 -1.544 -1.839 0.613

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.21421.86423.12142.41512.47582.46914.11693.23543.2442
S22.21423.12141.86424.11693.23543.24422.41512.47582.4691
C31.86423.12143.70701.10231.10091.09904.63543.26734.1620
C43.12141.86423.70704.63543.26734.16201.10231.10091.0990
H52.41514.11691.10234.63541.79761.80255.62284.14864.9344
H62.47583.23541.10093.26731.79761.80824.14862.55283.7862
H72.46913.24421.09904.16201.80251.80824.93443.78624.8033
H84.11692.41514.63541.10235.62284.14864.93441.79761.8025
H93.23542.47583.26731.10094.14862.55283.78621.79761.8082
H103.24422.46914.16201.09904.93443.78624.80331.80251.8082

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 99.518 S1 C3 H5 106.139
S1 C3 H6 110.577 S1 C3 H7 110.181
S2 S1 C3 99.518 S2 C4 H8 106.139
S2 C4 H9 110.577 S2 C4 H10 110.181
H5 C3 H6 109.348 H5 C3 H7 109.940
H6 C3 H7 110.558 H8 C4 H9 109.348
H8 C4 H10 109.940 H9 C4 H10 110.558
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.071      
2 S 0.071      
3 C -0.728      
4 C -0.728      
5 H 0.220      
6 H 0.209      
7 H 0.229      
8 H 0.220      
9 H 0.209      
10 H 0.229      


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 2.707 2.707
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.910 2.174 0.000
y 2.174 -35.386 0.000
z 0.000 0.000 -41.208
Traceless
 xyz
x -3.613 2.174 0.000
y 2.174 6.173 0.000
z 0.000 0.000 -2.561
Polar
3z2-r2-5.121
x2-y2-6.524
xy2.174
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.528 -0.540 0.000
y -0.540 11.617 0.000
z 0.000 0.000 7.146


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