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

using model chemistry: HF/cc-pV(T+d)Z

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-pV(T+d)Z
 hartrees
Energy at 0K-874.360336
Energy at 298.15K-874.366736
Nuclear repulsion energy222.589815
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-pV(T+d)Z
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 3276 2982 9.02      
2 A 3257 2965 9.88      
3 A 3179 2894 23.04      
4 A 1598 1454 0.13      
5 A 1584 1442 6.43      
6 A 1480 1347 2.10      
7 A 1060 965 2.81      
8 A 1059 964 0.28      
9 A 763 694 0.61      
10 A 554 504 0.44      
11 A 254 232 1.20      
12 A 167 152 0.05      
13 A 106 97 1.65      
14 B 3275 2981 14.77      
15 B 3256 2964 11.12      
16 B 3177 2892 35.28      
17 B 1601 1457 14.56      
18 B 1579 1438 8.80      
19 B 1472 1340 11.46      
20 B 1064 969 11.92      
21 B 1050 955 1.00      
22 B 755 688 1.09      
23 B 285 260 0.93      
24 B 175 160 0.32      

Unscaled Zero Point Vibrational Energy (zpe) 18013.3 cm-1
Scaled (by 0.9103) Zero Point Vibrational Energy (zpe) 16397.6 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-pV(T+d)Z
ABC
0.27990 0.09171 0.08478

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/cc-pV(T+d)Z

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 -0.451 0.914 -0.487
S2 0.451 -0.914 -0.487
C3 0.451 1.832 0.784
C4 -0.451 -1.832 0.784
H5 0.036 2.832 0.786
H6 0.311 1.391 1.759
H7 1.501 1.879 0.544
H8 -0.036 -2.832 0.786
H9 -0.311 -1.391 1.759
H10 -1.501 -1.879 0.544

Atom - Atom Distances (Å)
  S1 S2 C3 C4 H5 H6 H7 H8 H9 H10
S12.03881.80873.02652.35322.41952.40953.97883.22163.1579
S22.03883.02651.80873.97883.22163.15792.35322.41952.4095
C31.80873.02653.77371.08251.07951.07894.68983.45214.2006
C43.02651.80873.77374.68983.45214.20061.08251.07951.0789
H52.35323.97881.08254.68981.76081.76445.66494.34734.9622
H62.41953.22161.07953.45211.76081.77014.34732.84983.9313
H72.40953.15791.07894.20061.76441.77014.96223.93134.8111
H83.97882.35324.68981.08255.66494.34734.96221.76081.7644
H93.22162.41953.45211.07954.34732.84983.93131.76081.7701
H103.15792.40954.20061.07894.96223.93134.81111.76441.7701

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 103.582 S1 C3 H5 106.230
S1 C3 H6 111.275 S1 C3 H7 110.550
S2 S1 C3 103.582 S2 C4 H8 106.230
S2 C4 H9 111.275 S2 C4 H10 110.550
H5 C3 H6 109.062 H5 C3 H7 109.441
H6 C3 H7 110.184 H8 C4 H9 109.062
H8 C4 H10 109.441 H9 C4 H10 110.184
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pV(T+d)Z Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.091      
2 S -0.091      
3 C -0.234      
4 C -0.234      
5 H 0.105      
6 H 0.103      
7 H 0.116      
8 H 0.105      
9 H 0.103      
10 H 0.116      


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 2.205 2.205
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.704 1.774 0.000
y 1.774 -35.288 0.000
z 0.000 0.000 -41.182
Traceless
 xyz
x -3.469 1.774 0.000
y 1.774 6.155 0.000
z 0.000 0.000 -2.687
Polar
3z2-r2-5.373
x2-y2-6.416
xy1.774
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.421 -0.039 0.000
y -0.039 11.627 0.000
z 0.000 0.000 7.960


<r2> (average value of r2) Å2
<r2> 155.251
(<r2>)1/2 12.460