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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-873.671677
Energy at 298.15K-873.677615
Nuclear repulsion energy222.143413
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 3107 3049 0.60      
2 A 3090 3032 5.98      
3 A 2991 2935 12.86      
4 A 1413 1387 0.15      
5 A 1402 1375 10.97      
6 A 1299 1274 0.01      
7 A 943 925 6.49      
8 A 935 917 3.62      
9 A 706 692 0.01      
10 A 512 502 0.36      
11 A 224 220 2.16      
12 A 128 126 0.25      
13 A 75 73 0.86      
14 B 3108 3050 3.11      
15 B 3092 3034 0.33      
16 B 2990 2934 8.83      
17 B 1420 1393 26.01      
18 B 1394 1368 15.66      
19 B 1291 1266 0.03      
20 B 944 926 23.48      
21 B 932 915 6.26      
22 B 705 692 6.52      
23 B 254 249 2.24      
24 B 158 155 0.52      

Unscaled Zero Point Vibrational Energy (zpe) 16555.4 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 16245.8 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
0.27010 0.09380 0.08527

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 -0.445 0.924 -0.505
S2 0.445 -0.924 -0.505
C3 0.445 1.788 0.810
C4 -0.445 -1.788 0.810
H5 0.038 2.812 0.841
H6 0.278 1.314 1.790
H7 1.522 1.834 0.591
H8 -0.038 -2.812 0.841
H9 -0.278 -1.314 1.790
H10 -1.522 -1.834 0.591

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.05071.80723.01362.36862.43722.42813.99193.20973.1570
S22.05073.01361.80723.99193.20973.15702.36862.43722.4281
C31.80723.01363.68471.10271.10121.10004.62553.33244.1272
C43.01361.80723.68474.62553.33244.12721.10271.10121.1000
H52.36863.99191.10274.62551.78961.79485.62514.24594.9075
H62.43723.20971.10123.33241.78961.80424.24592.68643.8194
H72.42813.15701.10004.12721.79481.80424.90753.81944.7664
H83.99192.36864.62551.10275.62514.24594.90751.78961.7948
H93.20972.43723.33241.10124.24592.68643.81941.78961.8042
H103.15702.42814.12721.10004.90753.81944.76641.79481.8042

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 102.549 S1 C3 H5 106.440
S1 C3 H6 111.543 S1 C3 H7 110.921
S2 S1 C3 102.549 S2 C4 H8 106.440
S2 C4 H9 111.543 S2 C4 H10 110.921
H5 C3 H6 108.586 H5 C3 H7 109.133
H6 C3 H7 110.099 H8 C4 H9 108.586
H8 C4 H10 109.133 H9 C4 H10 110.099
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 0.023      
2 S 0.023      
3 C -0.579      
4 C -0.579      
5 H 0.185      
6 H 0.177      
7 H 0.194      
8 H 0.185      
9 H 0.177      
10 H 0.194      


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 2.344 2.344
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.177 1.853 0.000
y 1.853 -34.918 0.000
z 0.000 0.000 -40.582
Traceless
 xyz
x -3.427 1.853 0.000
y 1.853 5.962 0.000
z 0.000 0.000 -2.534
Polar
3z2-r2-5.069
x2-y2-6.259
xy1.853
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.686 -0.241 0.000
y -0.241 11.292 0.000
z 0.000 0.000 7.220


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