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

using model chemistry: MP2/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-875.055804
Energy at 298.15K-875.061994
HF Energy-874.347137
Nuclear repulsion energy223.629397
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/Def2TZVPP
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 3196 3041 2.68      
2 A 3180 3026 4.93      
3 A 3082 2932 15.22      
4 A 1488 1416 0.25      
5 A 1476 1404 6.87      
6 A 1356 1290 0.34      
7 A 983 935 2.09      
8 A 973 925 1.02      
9 A 729 694 0.00      
10 A 535 509 0.43      
11 A 239 227 1.07      
12 A 154 147 0.00      
13 A 103 98 1.12      
14 B 3196 3041 4.92      
15 B 3181 3027 3.36      
16 B 3081 2931 18.74      
17 B 1493 1420 14.39      
18 B 1470 1398 9.94      
19 B 1347 1282 4.99      
20 B 980 933 11.61      
21 B 972 925 1.53      
22 B 725 690 2.40      
23 B 269 256 0.76      
24 B 169 161 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 17187.5 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 16353.9 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/Def2TZVPP
ABC
0.27190 0.09493 0.08683

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.438 0.920 -0.515
S2 0.438 -0.920 -0.515
C3 0.438 1.752 0.829
C4 -0.438 -1.752 0.829
H5 0.047 2.768 0.859
H6 0.243 1.264 1.781
H7 1.504 1.775 0.627
H8 -0.047 -2.768 0.859
H9 -0.243 -1.264 1.781
H10 -1.504 -1.775 0.627

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.03801.80702.99122.35312.41932.40963.95523.17523.1155
S22.03802.99121.80703.95523.17523.11552.35312.41932.4096
C31.80702.99123.61111.08911.08651.08594.54583.23514.0309
C42.99121.80703.61114.54583.23514.03091.08911.08651.0859
H52.35313.95521.08914.54581.77471.77845.53704.14684.8062
H62.41933.17521.08653.23511.77471.78384.14682.57523.6907
H72.40963.11551.08594.03091.77841.78384.80623.69074.6531
H83.95522.35314.54581.08915.53704.14684.80621.77471.7784
H93.17522.41933.23511.08654.14682.57523.69071.77471.7838
H103.11552.40964.03091.08594.80623.69074.65311.77841.7838

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 101.978 S1 C3 H5 106.014
S1 C3 H6 111.008 S1 C3 H7 110.306
S2 S1 C3 101.978 S2 C4 H8 106.014
S2 C4 H9 111.008 S2 C4 H10 110.306
H5 C3 H6 109.319 H5 C3 H7 109.699
H6 C3 H7 110.394 H8 C4 H9 109.319
H8 C4 H10 109.699 H9 C4 H10 110.394
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability