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

using model chemistry: MP2=FULL/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 MP2=FULL/cc-pVDZ
 hartrees
Energy at 0K-874.869632
Energy at 298.15K-874.875816
HF Energy-874.292484
Nuclear repulsion energy220.860488
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 MP2=FULL/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 3217 3058 3.24      
2 A 3202 3043 6.01      
3 A 3091 2938 17.97      
4 A 1477 1404 0.46      
5 A 1465 1392 6.32      
6 A 1350 1283 1.59      
7 A 982 933 3.22      
8 A 973 925 1.49      
9 A 730 694 0.07      
10 A 517 491 0.34      
11 A 238 226 1.14      
12 A 159 151 0.03      
13 A 99 94 1.08      
14 B 3217 3057 6.78      
15 B 3202 3043 3.86      
16 B 3090 2937 21.19      
17 B 1481 1408 15.10      
18 B 1458 1386 9.70      
19 B 1341 1274 8.28      
20 B 979 931 14.18      
21 B 973 925 2.34      
22 B 728 692 2.44      
23 B 269 255 1.20      
24 B 171 162 0.29      

Unscaled Zero Point Vibrational Energy (zpe) 17204.6 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 16351.2 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 MP2=FULL/cc-pVDZ
ABC
0.26452 0.09269 0.08521

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.038 -0.502
S2 0.000 -1.038 -0.502
C3 1.215 1.393 0.807
C4 -1.215 -1.393 0.807
H5 1.309 2.489 0.855
H6 0.871 1.020 1.783
H7 2.191 0.952 0.558
H8 -1.309 -2.489 0.855
H9 -0.871 -1.020 1.783
H10 -2.191 -0.952 0.558

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.07531.82083.01582.37982.44562.43563.99953.19623.1441
S22.07533.01581.82083.99953.19623.14412.37982.44562.4356
C31.82083.01583.69591.10201.10011.09924.63033.33514.1424
C43.01581.82083.69594.63033.33514.14241.10201.10011.0992
H52.37983.99951.10204.63031.79201.79705.62494.23404.9174
H62.44563.19621.10013.33511.79201.80234.23402.68223.8423
H72.43563.14411.09924.14241.79701.80234.91743.84234.7779
H83.99952.37984.63031.10205.62494.23404.91741.79201.7970
H93.19622.44563.33511.10014.23402.68223.84231.79201.8023
H103.14412.43564.14241.09924.91743.84234.77791.79701.8023

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 101.238 S1 C3 H5 106.406
S1 C3 H6 111.301 S1 C3 H7 110.600
S2 S1 C3 101.238 S2 C4 H8 106.406
S2 C4 H9 111.301 S2 C4 H10 110.600
H5 C3 H6 108.932 H5 C3 H7 109.446
H6 C3 H7 110.065 H8 C4 H9 108.932
H8 C4 H10 109.446 H9 C4 H10 110.065
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability