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All results from a given calculation for C4H10S2 (1,4-Butanedithiol)

using model chemistry: mPW1PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-954.823089
Energy at 298.15K-954.833795
Nuclear repulsion energy336.011024
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 mPW1PW91/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3081 2942 0.00      
2 Ag 3051 2913 0.00      
3 Ag 2732 2608 0.00      
4 Ag 1491 1423 0.00      
5 Ag 1488 1421 0.00      
6 Ag 1402 1338 0.00      
7 Ag 1276 1218 0.00      
8 Ag 1119 1069 0.00      
9 Ag 1073 1024 0.00      
10 Ag 863 824 0.00      
11 Ag 785 750 0.00      
12 Ag 335 320 0.00      
13 Ag 205 195 0.00      
14 Au 3145 3003 32.66      
15 Au 3108 2967 10.76      
16 Au 1322 1262 1.14      
17 Au 1104 1054 3.08      
18 Au 893 852 1.63      
19 Au 743 710 4.44      
20 Au 211 202 36.07      
21 Au 107 102 6.87      
22 Au 53 51 5.37      
23 Bg 3142 2999 0.00      
24 Bg 3089 2949 0.00      
25 Bg 1334 1274 0.00      
26 Bg 1258 1201 0.00      
27 Bg 1044 996 0.00      
28 Bg 780 745 0.00      
29 Bg 208 199 0.00      
30 Bg 135 129 0.00      
31 Bu 3083 2944 53.69      
32 Bu 3059 2920 13.23      
33 Bu 2732 2608 9.20      
34 Bu 1509 1440 4.39      
35 Bu 1484 1417 3.46      
36 Bu 1349 1288 34.50      
37 Bu 1228 1173 28.40      
38 Bu 1066 1018 0.18      
39 Bu 897 856 2.31      
40 Bu 748 714 4.25      
41 Bu 388 370 4.37      
42 Bu 99 95 3.53      

Unscaled Zero Point Vibrational Energy (zpe) 29108.0 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 27789.4 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 mPW1PW91/6-31G(2df,p)
ABC
0.48008 0.01888 0.01841

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 1.475 3.086 0.000
S2 -1.475 -3.086 0.000
C3 1.475 1.263 0.000
C4 -1.475 -1.263 0.000
C5 0.036 0.763 0.000
C6 -0.036 -0.763 0.000
H7 2.806 3.252 0.000
H8 -2.806 -3.252 0.000
H9 -0.486 1.159 0.878
H10 -0.486 1.159 -0.878
H11 0.486 -1.159 0.878
H12 0.486 -1.159 -0.878
H13 -2.002 -0.904 -0.887
H14 -2.002 -0.904 0.887
H15 2.002 0.904 -0.887
H16 2.002 0.904 0.887

Atom - Atom Distances (Å)
  S1 S2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
S16.84041.82285.25492.73254.13461.34187.64862.88602.88604.44594.44595.36575.36572.41372.4137
S26.84045.25491.82284.13462.73257.64861.34184.44594.44592.88602.88602.41372.41375.36575.3657
C31.82285.25493.88361.52302.52732.39376.22232.15072.15072.75952.75954.19164.19161.09231.0923
C45.25491.82283.88362.52731.52306.22232.39372.75952.75952.15072.15071.09231.09234.19164.1916
C52.73254.13461.52302.52731.52693.72434.91941.09581.09582.15972.15972.77812.77812.16082.1608
C64.13462.73252.52731.52301.52694.91943.72432.15972.15971.09581.09582.16082.16082.77812.7781
H71.34187.64862.39376.22233.72434.91948.59133.99893.99895.06105.06106.41696.41692.63612.6361
H87.64861.34186.22232.39374.91943.72438.59135.06105.06103.99893.99892.63612.63616.41696.4169
H92.88604.44592.15072.75951.09582.15973.99895.06101.75682.51243.06573.10932.55983.06072.5005
H102.88604.44592.15072.75951.09582.15973.99895.06101.75683.06572.51242.55983.10932.50053.0607
H114.44592.88602.75952.15072.15971.09585.06103.99892.51243.06571.75683.06072.50053.10932.5598
H124.44592.88602.75952.15072.15971.09585.06103.99893.06572.51241.75682.50053.06072.55983.1093
H135.36572.41374.19161.09232.77812.16086.41692.63613.10932.55983.06072.50051.77324.39304.7373
H145.36572.41374.19161.09232.77812.16086.41692.63612.55983.10932.50053.06071.77324.73734.3930
H152.41375.36571.09234.19162.16082.77812.63616.41693.06072.50053.10932.55984.39304.73731.7732
H162.41375.36571.09234.19162.16082.77812.63616.41692.50053.06072.55983.10934.73734.39301.7732

picture of 1,4-Butanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C3 C5 109.187 S1 C3 H15 109.212
S1 C3 H16 109.212 S2 C4 C6 109.187
S2 C4 H13 109.212 S2 C4 H14 109.212
C3 S1 H7 97.127 C3 C5 C6 111.923
C3 C5 H9 109.336 C3 C5 H10 109.336
C4 S2 H8 97.127 C4 C6 C5 111.923
C4 C6 H11 109.336 C4 C6 H12 109.336
C5 C3 H15 110.343 C5 C3 H16 110.343
C5 C6 H11 109.767 C5 C6 H12 109.767
C6 C4 H13 110.343 C6 C4 H14 110.343
C6 C5 H9 109.767 C6 C5 H10 109.767
H9 C5 H10 106.565 H11 C6 H12 106.565
H13 C4 H14 108.519 H15 C3 H16 108.519
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.271      
2 S -0.271      
3 C -0.272      
4 C -0.272      
5 C -0.252      
6 C -0.252      
7 H 0.173      
8 H 0.173      
9 H 0.149      
10 H 0.149      
11 H 0.149      
12 H 0.149      
13 H 0.161      
14 H 0.161      
15 H 0.161      
16 H 0.161      


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 -44.289 1.750 0.000
y 1.750 -65.914 0.000
z 0.000 0.000 -55.191
Traceless
 xyz
x 16.263 1.750 0.000
y 1.750 -16.174 0.000
z 0.000 0.000 -0.089
Polar
3z2-r2-0.179
x2-y221.624
xy1.750
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.500 2.465 0.000
y 2.465 14.929 0.000
z 0.000 0.000 9.197


<r2> (average value of r2) Å2
<r2> 529.751
(<r2>)1/2 23.016