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

using model chemistry: HF/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HF/TZVP
 hartrees
Energy at 0K-874.323743
Energy at 298.15K-874.330118
HF Energy-874.323743
Nuclear repulsion energy220.856696
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 HF/TZVP
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 3294 2993 10.21      
2 A 3277 2977 8.53      
3 A 3193 2902 26.11      
4 A 1600 1454 0.06      
5 A 1587 1442 7.20      
6 A 1486 1350 4.61      
7 A 1066 969 2.71      
8 A 1063 966 0.93      
9 A 759 689 1.39      
10 A 549 499 0.49      
11 A 251 228 1.58      
12 A 170 154 0.03      
13 A 100 91 1.85      
14 B 3293 2992 15.03      
15 B 3276 2976 12.00      
16 B 3192 2900 35.97      
17 B 1603 1457 18.60      
18 B 1583 1438 9.28      
19 B 1478 1343 13.86      
20 B 1070 972 13.09      
21 B 1054 958 1.05      
22 B 752 683 1.61      
23 B 280 254 1.23      
24 B 178 161 0.43      

Unscaled Zero Point Vibrational Energy (zpe) 18075.1 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 16423.0 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 HF/TZVP
ABC
0.27465 0.09012 0.08388

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.464 0.924 -0.487
S2 0.464 -0.924 -0.487
C3 0.464 1.841 0.785
C4 -0.464 -1.841 0.785
H5 0.043 2.839 0.804
H6 0.345 1.386 1.757
H7 1.509 1.896 0.523
H8 -0.043 -2.839 0.804
H9 -0.345 -1.386 1.757
H10 -1.509 -1.896 0.523

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.06741.82203.04392.36432.42982.42044.00013.22303.1727
S22.06743.04391.82204.00013.22303.17272.36432.42982.4204
C31.82203.04393.79781.08251.07991.07934.70743.46664.2342
C43.04391.82203.79784.70743.46664.23421.08251.07991.0793
H52.36434.00011.08254.70741.76301.76605.67784.34834.9902
H62.42983.22301.07993.46661.76301.77134.34832.85713.9664
H72.42043.17271.07934.23421.76601.77134.99023.96644.8466
H84.00012.36434.70741.08255.67784.34834.99021.76301.7660
H93.22302.42983.46661.07994.34832.85713.96641.76301.7713
H103.17272.42044.23421.07934.99023.96644.84661.76601.7713

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 102.821 S1 C3 H5 106.170
S1 C3 H6 111.119 S1 C3 H7 110.441
S2 S1 C3 102.821 S2 C4 H8 106.170
S2 C4 H9 111.119 S2 C4 H10 110.441
H5 C3 H6 109.233 H5 C3 H7 109.550
H6 C3 H7 110.234 H8 C4 H9 109.233
H8 C4 H10 109.550 H9 C4 H10 110.234
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.086      
2 S -0.086      
3 C -0.226      
4 C -0.226      
5 H 0.099      
6 H 0.099      
7 H 0.114      
8 H 0.099      
9 H 0.099      
10 H 0.114      


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 2.317 2.317
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.959 1.997 0.000
y 1.997 -35.333 0.000
z 0.000 0.000 -41.463
Traceless
 xyz
x -3.561 1.997 0.000
y 1.997 6.378 0.000
z 0.000 0.000 -2.816
Polar
3z2-r2-5.633
x2-y2-6.626
xy1.997
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.906 -0.103 0.000
y -0.103 11.187 0.000
z 0.000 0.000 7.420


<r2> (average value of r2) Å2
<r2> 157.134
(<r2>)1/2 12.535