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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-947.758221
Energy at 298.15K-947.769270
Nuclear repulsion energy334.712947
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 3236 2921 0.00      
2 Ag 3209 2896 0.00      
3 Ag 2890 2609 0.00      
4 Ag 1656 1495 0.00      
5 Ag 1652 1491 0.00      
6 Ag 1523 1374 0.00      
7 Ag 1439 1299 0.00      
8 Ag 1173 1058 0.00      
9 Ag 1085 979 0.00      
10 Ag 935 844 0.00      
11 Ag 809 730 0.00      
12 Ag 360 325 0.00      
13 Ag 225 203 0.00      
14 Au 3295 2974 42.97      
15 Au 3257 2940 7.00      
16 Au 1469 1326 1.29      
17 Au 1249 1127 2.34      
18 Au 986 890 2.24      
19 Au 809 730 6.19      
20 Au 208 187 40.45      
21 Au 110 100 15.08      
22 Au 59 53 6.18      
23 Bg 3288 2968 0.00      
24 Bg 3237 2922 0.00      
25 Bg 1479 1335 0.00      
26 Bg 1396 1260 0.00      
27 Bg 1160 1047 0.00      
28 Bg 857 774 0.00      
29 Bg 201 181 0.00      
30 Bg 144 130 0.00      
31 Bu 3238 2923 57.99      
32 Bu 3214 2901 11.17      
33 Bu 2890 2608 35.65      
34 Bu 1669 1506 10.56      
35 Bu 1648 1487 9.49      
36 Bu 1497 1352 40.44      
37 Bu 1394 1258 24.90      
38 Bu 1100 993 6.15      
39 Bu 965 871 2.23      
40 Bu 770 695 5.64      
41 Bu 426 385 6.56      
42 Bu 111 100 3.81      

Unscaled Zero Point Vibrational Energy (zpe) 31156.9 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 28122.2 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
0.48220 0.01863 0.01818

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 1.389 3.151 0.000
S2 -1.389 -3.151 0.000
C3 1.439 1.323 0.000
C4 -1.439 -1.323 0.000
C5 0.000 0.770 0.000
C6 0.000 -0.770 0.000
H7 2.698 3.366 0.000
H8 -2.698 -3.366 0.000
H9 -0.524 1.135 0.877
H10 -0.524 1.135 -0.877
H11 0.524 -1.135 0.877
H12 0.524 -1.135 -0.877
H13 -1.963 -0.978 -0.880
H14 -1.963 -0.978 0.880
H15 1.963 0.978 -0.880
H16 1.963 0.978 0.880

Atom - Atom Distances (Å)
  S1 S2 C3 C4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
S16.88741.82915.29252.75624.16031.32727.69322.91452.91454.45934.45935.39045.39042.41432.4143
S26.88745.29251.82914.16032.75627.69321.32724.45934.45932.91452.91452.41432.41435.39045.3904
C31.82915.29253.90851.54092.53992.40086.25322.15792.15792.76472.76474.19964.19961.08111.0811
C45.29251.82913.90852.53991.54096.25322.40082.76472.76472.15792.15791.08111.08114.19964.1996
C52.75624.16031.54092.53991.54093.74444.93921.08451.08452.16182.16182.77202.77202.16122.1612
C64.16032.75622.53991.54091.54094.93923.74442.16182.16181.08451.08452.16122.16122.77202.7720
H71.32727.69322.40086.25323.74444.93928.62884.01684.01685.07505.07506.43236.43232.64982.6498
H87.69321.32726.25322.40084.93923.74448.62885.07505.07504.01684.01682.64982.64986.43236.4323
H92.91454.45932.15792.76471.08452.16184.01685.07501.75322.50013.05363.10132.55583.04912.4923
H102.91454.45932.15792.76471.08452.16184.01685.07501.75323.05362.50012.55583.10132.49233.0491
H114.45932.91452.76472.15792.16181.08455.07504.01682.50013.05361.75323.04912.49233.10132.5558
H124.45932.91452.76472.15792.16181.08455.07504.01683.05362.50011.75322.49233.04912.55583.1013
H135.39042.41434.19961.08112.77202.16126.43232.64983.10132.55583.04912.49231.76014.38604.7260
H145.39042.41434.19961.08112.77202.16126.43232.64982.55583.10132.49233.04911.76014.72604.3860
H152.41435.39041.08114.19962.16122.77202.64986.43233.04912.49233.10132.55584.38604.72601.7601
H162.41435.39041.08114.19962.16122.77202.64986.43232.49233.04912.55583.10134.72604.38601.7601

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 109.446 S1 C3 H15 109.410
S1 C3 H16 109.410 S2 C4 C6 109.446
S2 C4 H13 109.410 S2 C4 H14 109.410
C3 S1 H7 97.774 C3 C5 C6 111.004
C3 C5 H9 109.326 C3 C5 H10 109.326
C4 S2 H8 97.774 C4 C6 C5 111.004
C4 C6 H11 109.326 C4 C6 H12 109.326
C5 C3 H15 109.786 C5 C3 H16 109.786
C5 C6 H11 109.630 C5 C6 H12 109.630
C6 C4 H13 109.786 C6 C4 H14 109.786
C6 C5 H9 109.630 C6 C5 H10 109.630
H9 C5 H10 107.864 H11 C6 H12 107.864
H13 C4 H14 108.988 H15 C3 H16 108.988
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 -0.050 -0.375    
2 S -0.050 -0.375    
3 C -0.576 -0.097    
4 C -0.576 -0.097    
5 C -0.430 -0.027    
6 C -0.430 -0.027    
7 H 0.118 0.215    
8 H 0.118 0.215    
9 H 0.230 0.070    
10 H 0.230 0.070    
11 H 0.230 0.070    
12 H 0.230 0.070    
13 H 0.239 0.073    
14 H 0.239 0.073    
15 H 0.239 0.073    
16 H 0.239 0.073    


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        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -45.776 3.223 0.000
y 3.223 -67.844 0.000
z 0.000 0.000 -56.976
Traceless
 xyz
x 16.634 3.223 0.000
y 3.223 -16.468 0.000
z 0.000 0.000 -0.165
Polar
3z2-r2-0.331
x2-y222.068
xy3.223
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.091 2.187 0.000
y 2.187 13.197 0.000
z 0.000 0.000 7.358


<r2> (average value of r2) Å2
<r2> 536.844
(<r2>)1/2 23.170