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

using model chemistry: HF/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at HF/3-21G
 hartrees
Energy at 0K-947.538926
Energy at 298.15K-947.549796
Nuclear repulsion energy330.805929
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/3-21G
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 3264 2956 0.00      
2 Ag 3216 2912 0.00      
3 Ag 2624 2376 0.00      
4 Ag 1656 1500 0.00      
5 Ag 1642 1487 0.00      
6 Ag 1523 1379 0.00      
7 Ag 1416 1283 0.00      
8 Ag 1154 1045 0.00      
9 Ag 1082 979 0.00      
10 Ag 895 810 0.00      
11 Ag 760 688 0.00      
12 Ag 353 320 0.00      
13 Ag 218 197 0.00      
14 Au 3330 3015 25.97      
15 Au 3269 2960 16.63      
16 Au 1468 1329 1.37      
17 Au 1234 1118 0.94      
18 Au 967 876 1.52      
19 Au 809 732 6.86      
20 Au 180 163 46.49      
21 Au 110 100 28.02      
22 Au 58 53 8.80      
23 Bg 3327 3013 0.00      
24 Bg 3246 2940 0.00      
25 Bg 1479 1339 0.00      
26 Bg 1389 1258 0.00      
27 Bg 1139 1032 0.00      
28 Bg 847 767 0.00      
29 Bg 173 157 0.00      
30 Bg 142 128 0.00      
31 Bu 3265 2957 41.08      
32 Bu 3222 2918 15.34      
33 Bu 2624 2376 69.16      
34 Bu 1667 1509 11.38      
35 Bu 1640 1485 10.33      
36 Bu 1489 1348 61.14      
37 Bu 1379 1249 43.03      
38 Bu 1084 982 5.33      
39 Bu 927 840 10.68      
40 Bu 722 654 17.02      
41 Bu 414 375 14.15      
42 Bu 107 97 5.50      

Unscaled Zero Point Vibrational Energy (zpe) 30752.6 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 27849.6 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/3-21G
ABC
0.47047 0.01824 0.01779

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 1.364 3.211 0.000
S2 -1.364 -3.211 0.000
C3 1.433 1.313 0.000
C4 -1.433 -1.313 0.000
C5 0.000 0.771 0.000
C6 0.000 -0.771 0.000
H7 2.695 3.451 0.000
H8 -2.695 -3.451 0.000
H9 -0.523 1.137 0.876
H10 -0.523 1.137 -0.876
H11 0.523 -1.137 0.876
H12 0.523 -1.137 -0.876
H13 -1.965 -1.000 -0.884
H14 -1.965 -1.000 0.884
H15 1.965 1.000 -0.884
H16 1.965 1.000 0.884

Atom - Atom Distances (Å)
  S1 S2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
S16.97761.89935.31882.79514.20961.35277.80162.93802.93804.51424.51425.44055.44052.45622.4562
S26.97765.31881.89934.20962.79517.80161.35274.51424.51422.93802.93802.45622.45625.44055.4405
C31.89935.31883.88681.53172.52942.48326.30392.15022.15022.75622.75624.20464.20461.07861.0786
C45.31881.89933.88682.52941.53176.30392.48322.75622.75622.15022.15021.07861.07864.20464.2046
C52.79514.20961.53172.52941.54293.80075.00961.08391.08392.16382.16382.78962.78962.16712.1671
C64.20962.79512.52941.53171.54295.00963.80072.16382.16381.08391.08392.16712.16712.78962.7896
H71.35277.80162.48326.30393.80075.00968.75804.05984.05985.15135.15136.50506.50502.70632.7063
H87.80161.35276.30392.48325.00963.80078.75805.15135.15134.05984.05982.70632.70636.50506.5050
H92.93804.51422.15022.75621.08392.16384.05985.15131.75292.50213.05503.12172.57793.05112.4919
H102.93804.51422.15022.75621.08392.16384.05985.15131.75293.05502.50212.57793.12172.49193.0511
H114.51422.93802.75622.15022.16381.08395.15134.05982.50213.05501.75293.05112.49193.12172.5779
H124.51422.93802.75622.15022.16381.08395.15134.05983.05502.50211.75292.49193.05112.57793.1217
H135.44052.45624.20461.07862.78962.16716.50502.70633.12172.57793.05112.49191.76834.41024.7515
H145.44052.45624.20461.07862.78962.16716.50502.70632.57793.12172.49193.05111.76834.75154.4102
H152.45625.44051.07864.20462.16712.78962.70636.50503.05112.49193.12172.57794.41024.75151.7683
H162.45625.44051.07864.20462.16712.78962.70636.50502.49193.05112.57793.12174.75154.41021.7683

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 108.632 S1 C3 H15 107.938
S1 C3 H16 107.938 S2 C4 C6 108.632
S2 C4 H13 107.938 S2 C4 H14 107.938
C3 S1 H7 98.153 C3 C5 C6 110.710
C3 C5 H9 109.397 C3 C5 H10 109.397
C4 S2 H8 98.153 C4 C6 C5 110.710
C4 C6 H11 109.397 C4 C6 H12 109.397
C5 C3 H15 111.053 C5 C3 H16 111.053
C5 C6 H11 109.684 C5 C6 H12 109.684
C6 C4 H13 111.053 C6 C4 H14 111.053
C6 C5 H9 109.684 C6 C5 H10 109.684
H9 C5 H10 107.919 H11 C6 H12 107.919
H13 C4 H14 110.110 H15 C3 H16 110.110
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.021 -0.390   -0.409
2 S 0.021 -0.390   -0.421
3 C -0.648 -0.047   -0.232
4 C -0.648 -0.047   -0.166
5 C -0.414 0.029   -0.097
6 C -0.414 0.029   -0.093
7 H 0.068 0.214   0.236
8 H 0.068 0.214   0.236
9 H 0.234 0.044   0.108
10 H 0.234 0.044   0.108
11 H 0.234 0.044   0.105
12 H 0.234 0.044   0.105
13 H 0.252 0.053   0.119
14 H 0.252 0.053   0.119
15 H 0.252 0.053   0.141
16 H 0.252 0.053   0.141


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 0.000 0.000 0.000 0.000
AIM        
ESP 0.007 -0.002 0.000 0.008


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.259 4.020 0.000
y 4.020 -71.966 0.000
z 0.000 0.000 -57.112
Traceless
 xyz
x 19.280 4.020 0.000
y 4.020 -20.781 0.000
z 0.000 0.000 1.501
Polar
3z2-r23.001
x2-y226.707
xy4.020
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.328 2.534 0.000
y 2.534 14.361 0.000
z 0.000 0.000 6.760


<r2> (average value of r2) Å2
<r2> 548.510
(<r2>)1/2 23.420