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All results from a given calculation for CH2SHCH2SH (1,2-Ethanedithiol)

using model chemistry: mPW1PW91/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-876.239158
Energy at 298.15K-876.245284
Nuclear repulsion energy202.029538
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 mPW1PW91/aug-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 Ag 3088 2959 0.00      
2 Ag 2707 2594 0.00      
3 Ag 1471 1410 0.00      
4 Ag 1319 1264 0.00      
5 Ag 1117 1070 0.00      
6 Ag 899 861 0.00      
7 Ag 746 715 0.00      
8 Ag 282 270 0.00      
9 Au 3167 3035 4.23      
10 Au 1117 1071 4.25      
11 Au 772 740 2.83      
12 Au 142 136 17.59      
13 Au 78 75 23.37      
14 Bg 3145 3014 0.00      
15 Bg 1289 1235 0.00      
16 Bg 962 922 0.00      
17 Bg 143 137 0.00      
18 Bu 3096 2967 21.76      
19 Bu 2707 2594 3.23      
20 Bu 1469 1408 7.16      
21 Bu 1225 1174 36.24      
22 Bu 884 847 1.22      
23 Bu 731 700 8.54      
24 Bu 199 191 6.82      

Unscaled Zero Point Vibrational Energy (zpe) 16377.1 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 15694.1 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 mPW1PW91/aug-cc-pVDZ
ABC
0.83719 0.05056 0.04857

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.485 0.584 0.000
C2 -0.485 -0.584 0.000
S3 0.485 -2.142 0.000
S4 -0.485 2.142 0.000
H5 -0.574 -2.984 0.000
H6 0.574 2.984 0.000
H7 -1.119 -0.552 0.893
H8 -1.119 -0.552 -0.893
H9 1.119 0.552 0.893
H10 1.119 0.552 -0.893

Atom - Atom Distances (Å)
  C1 C2 S3 S4 H5 H6 H7 H8 H9 H10
C11.51822.72541.83563.72172.40212.15872.15871.09561.0956
C21.51821.83562.72542.40213.72171.09561.09562.15872.1587
S32.72541.83564.39201.35345.12662.42882.42882.90762.9076
S41.83562.72544.39205.12661.35342.90762.90762.42882.4288
H53.72172.40211.35345.12666.07762.64792.64794.02064.0206
H62.40213.72175.12661.35346.07764.02064.02062.64792.6479
H72.15871.09562.42882.90762.64794.02061.78662.49483.0685
H82.15871.09562.42882.90762.64794.02061.78663.06852.4948
H91.09562.15872.90762.42884.02062.64792.49483.06851.7866
H101.09562.15872.90762.42884.02062.64793.06852.49481.7866

picture of 1,2-Ethanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 S3 108.340 C1 C2 H7 110.316
C1 C2 H8 110.316 C1 S4 H6 96.573
C2 C1 S4 108.340 C2 C1 H9 110.316
C2 C1 H10 110.316 C2 S3 H5 96.573
S3 C2 H7 109.301 S3 C2 H8 109.301
S4 C1 H9 109.301 S4 C1 H10 109.301
H7 C2 H8 109.245 H9 C1 H10 109.245
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.167      
2 C 0.167      
3 S 0.102      
4 S 0.102      
5 H 0.112      
6 H 0.112      
7 H -0.191      
8 H -0.191      
9 H -0.191      
10 H -0.191      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.922 6.708 0.000
y 6.708 -40.471 0.000
z 0.000 0.000 -43.234
Traceless
 xyz
x 1.931 6.708 0.000
y 6.708 1.107 0.000
z 0.000 0.000 -3.038
Polar
3z2-r2-6.076
x2-y20.549
xy6.708
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.140 -0.734 0.000
y -0.734 13.506 0.000
z 0.000 0.000 8.592


<r2> (average value of r2) Å2
<r2> 214.858
(<r2>)1/2 14.658