return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: HF/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-874.355745
Energy at 298.15K-874.362124
Nuclear repulsion energy222.004999
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/cc-pVTZ
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 3279 2984 8.68      
2 A 3260 2967 9.80      
3 A 3181 2895 23.49      
4 A 1598 1454 0.13      
5 A 1584 1442 6.45      
6 A 1479 1346 2.38      
7 A 1060 965 2.81      
8 A 1059 964 0.22      
9 A 761 692 0.77      
10 A 551 502 0.45      
11 A 252 230 1.17      
12 A 165 150 0.05      
13 A 104 94 1.69      
14 B 3278 2983 14.72      
15 B 3259 2966 10.89      
16 B 3179 2894 35.12      
17 B 1601 1457 14.40      
18 B 1580 1438 8.66      
19 B 1471 1338 12.55      
20 B 1065 969 12.11      
21 B 1050 956 0.99      
22 B 754 686 1.21      
23 B 283 258 0.96      
24 B 173 157 0.33      

Unscaled Zero Point Vibrational Energy (zpe) 18011.8 cm-1
Scaled (by 0.9101) Zero Point Vibrational Energy (zpe) 16392.6 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/cc-pVTZ
ABC
0.27807 0.09121 0.08444

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 1.024 -0.488
S2 0.000 -1.024 -0.488
C3 1.221 1.443 0.785
C4 -1.221 -1.443 0.785
H5 1.292 2.523 0.792
H6 0.901 1.103 1.759
H7 2.182 1.020 0.540
H8 -1.292 -2.523 0.792
H9 -0.901 -1.103 1.759
H10 -2.182 -1.020 0.540

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.04901.81283.03312.35632.42212.41203.98633.22313.1622
S22.04903.03311.81283.98633.22313.16222.35632.42212.4120
C31.81283.03313.78011.08221.07931.07864.69473.45474.2081
C43.03311.81283.78014.69473.45474.20811.08221.07931.0786
H52.35633.98631.08224.69471.76121.76475.66874.34674.9685
H62.42213.22311.07933.45471.76121.77034.34672.84953.9376
H72.41203.16221.07864.20811.76471.77034.96853.93764.8179
H83.98632.35634.69471.08225.66874.34674.96851.76121.7647
H93.22312.42213.45471.07934.34672.84953.93761.76121.7703
H103.16222.41204.20811.07864.96853.93764.81791.76471.7703

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 103.349 S1 C3 H5 106.200
S1 C3 H6 111.197 S1 C3 H7 110.475
S2 S1 C3 103.349 S2 C4 H8 106.200
S2 C4 H9 111.197 S2 C4 H10 110.475
H5 C3 H6 109.128 H5 C3 H7 109.506
H6 C3 H7 110.238 H8 C4 H9 109.128
H8 C4 H10 109.506 H9 C4 H10 110.238
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.089 -0.057 -0.031 -0.109
2 S -0.089 0.049 -0.031 -0.116
3 C -0.238 0.087 0.042 -0.300
4 C -0.238 0.059 0.042 -0.261
5 H 0.106 -0.057 -0.005 0.160
6 H 0.104 0.049 -0.013 0.128
7 H 0.117 0.087 0.003 0.121
8 H 0.106 0.059 -0.005 0.150
9 H 0.104 -0.138 -0.013 0.118
10 H 0.117 -0.138 0.003 0.109


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 2.222 2.222
CHELPG        
AIM 0.000 0.000 0.776 0.776
ESP -0.003 -0.008 2.261 2.261


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.022 3.658 0.000
y 3.658 -37.983 0.000
z 0.000 0.000 -41.207
Traceless
 xyz
x 0.573 3.658 0.000
y 3.658 2.132 0.000
z 0.000 0.000 -2.705
Polar
3z2-r2-5.410
x2-y2-1.039
xy3.658
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.656 0.000 -0.220
y 0.000 7.970 0.000
z -0.220 0.000 7.452


<r2> (average value of r2) Å2
<r2> 155.841
(<r2>)1/2 12.484