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

using model chemistry: QCISD/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 QCISD/cc-pVDZ
 hartrees
Energy at 0K-874.908450
Energy at 298.15K-874.914591
HF Energy-874.292044
Nuclear repulsion energy219.535833
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 QCISD/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3180 3051 4.81      
2 A 3165 3036 7.63      
3 A 3068 2943 20.86      
4 A 1478 1418 0.40      
5 A 1466 1406 5.32      
6 A 1355 1300 2.49      
7 A 980 940 2.48      
8 A 973 933 1.53      
9 A 716 687 0.13      
10 A 505 484 0.28      
11 A 236 226 1.04      
12 A 157 150 0.04      
13 A 97 93 1.06      
14 B 3179 3050 11.16      
15 B 3165 3036 8.05      
16 B 3066 2942 26.13      
17 B 1481 1421 13.18      
18 B 1460 1400 7.89      
19 B 1346 1292 11.87      
20 B 979 939 12.10      
21 B 972 932 1.78      
22 B 713 685 1.73      
23 B 266 255 1.00      
24 B 166 159 0.27      

Unscaled Zero Point Vibrational Energy (zpe) 17082.3 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 16388.8 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 QCISD/cc-pVDZ
ABC
0.26240 0.09124 0.08410

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.045 -0.503
S2 0.000 -1.045 -0.503
C3 1.227 1.403 0.808
C4 -1.227 -1.403 0.808
H5 1.319 2.503 0.857
H6 0.886 1.028 1.787
H7 2.205 0.964 0.554
H8 -1.319 -2.503 0.857
H9 -0.886 -1.028 1.787
H10 -2.205 -0.964 0.554

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.09021.83103.03642.39072.45562.44654.02243.21333.1645
S22.09023.03641.83104.02243.21333.16452.39072.45562.4465
C31.83103.03643.72821.10471.10291.10194.66323.36624.1767
C43.03641.83103.72824.66323.36624.17671.10471.10291.1019
H52.39074.02241.10474.66321.79731.80175.65884.26524.9526
H62.45563.21331.10293.36621.79731.80684.26522.71323.8778
H72.44653.16451.10194.17671.80171.80684.95263.87784.8125
H84.02242.39074.66321.10475.65884.26524.95261.79731.8017
H93.21332.45563.36621.10294.26522.71323.87781.79731.8068
H103.16452.44654.17671.10194.95263.87784.81251.80171.8068

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 101.284 S1 C3 H5 106.405
S1 C3 H6 111.206 S1 C3 H7 110.586
S2 S1 C3 101.284 S2 C4 H8 106.405
S2 C4 H9 111.206 S2 C4 H10 110.586
H5 C3 H6 109.012 H5 C3 H7 109.474
H6 C3 H7 110.069 H8 C4 H9 109.012
H8 C4 H10 109.474 H9 C4 H10 110.069
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability