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

using model chemistry: B1B95/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-876.317405
Energy at 298.15K-876.323502
Nuclear repulsion energy222.777255
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/cc-pVTZ
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 3171 3035 4.03      
2 A 3154 3019 7.32      
3 A 3066 2934 17.00      
4 A 1474 1411 0.26      
5 A 1462 1399 6.98      
6 A 1342 1285 0.29      
7 A 972 930 2.64      
8 A 965 923 0.78      
9 A 713 683 0.00      
10 A 527 504 0.52      
11 A 230 220 1.08      
12 A 143 136 0.00      
13 A 96 92 1.24      
14 B 3171 3035 7.74      
15 B 3155 3019 4.62      
16 B 3065 2933 21.95      
17 B 1478 1414 15.91      
18 B 1456 1394 10.39      
19 B 1335 1277 4.72      
20 B 971 930 13.07      
21 B 961 920 2.08      
22 B 711 681 3.36      
23 B 259 248 0.94      
24 B 155 149 0.33      

Unscaled Zero Point Vibrational Energy (zpe) 17015.0 cm-1
Scaled (by 0.9571) Zero Point Vibrational Energy (zpe) 16285.1 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/cc-pVTZ
ABC
0.27669 0.09270 0.08542

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.452 0.913 -0.491
S2 0.452 -0.913 -0.491
C3 0.452 1.815 0.791
C4 -0.452 -1.815 0.791
H5 0.045 2.824 0.795
H6 0.298 1.367 1.767
H7 1.509 1.852 0.553
H8 -0.045 -2.824 0.795
H9 -0.298 -1.367 1.767
H10 -1.509 -1.852 0.553

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.03741.80903.01442.35662.42242.41203.97353.21283.1395
S22.03743.01441.80903.97353.21283.13952.35662.42242.4120
C31.80903.01443.74091.08811.08541.08474.66613.41184.1655
C43.01441.80903.74094.66613.41184.16551.08811.08541.0847
H52.35663.97351.08814.66611.77031.77415.64964.31634.9342
H62.42243.21281.08543.41181.77031.78244.31632.79803.8863
H72.41203.13951.08474.16551.77411.78244.93423.88634.7787
H83.97352.35664.66611.08815.64964.31634.93421.77031.7741
H93.21282.42243.41181.08544.31632.79803.88631.77031.7824
H103.13952.41204.16551.08474.93423.88634.77871.77411.7824

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 103.037 S1 C3 H5 106.182
S1 C3 H6 111.162 S1 C3 H7 110.408
S2 S1 C3 103.037 S2 C4 H8 106.182
S2 C4 H9 111.162 S2 C4 H10 110.408
H5 C3 H6 109.080 H5 C3 H7 109.465
H6 C3 H7 110.435 H8 C4 H9 109.080
H8 C4 H10 109.465 H9 C4 H10 110.435
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.065      
2 S -0.065      
3 C -0.329      
4 C -0.329      
5 H 0.124      
6 H 0.130      
7 H 0.140      
8 H 0.124      
9 H 0.130      
10 H 0.140      


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 2.034 2.034
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.952 1.526 0.000
y 1.526 -35.016 0.000
z 0.000 0.000 -40.523
Traceless
 xyz
x -3.182 1.526 0.000
y 1.526 5.721 0.000
z 0.000 0.000 -2.539
Polar
3z2-r2-5.077
x2-y2-5.935
xy1.526
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.684 0.006 0.000
y 0.006 12.231 0.000
z 0.000 0.000 8.281


<r2> (average value of r2) Å2
<r2> 154.078
(<r2>)1/2 12.413