(CH3)2S



 









Sulfur


Nuclear Quadrupole Coupling Constants

in Dimethyl Sulfide


 







 
 
In Table 1, RMS is the root mean square difference between calculated and experimental diagonal nqcc's (percentage of the average of the magnitudes of the experimental nqcc's).  RSD is the calibration residual standard deviation of the model for calculation of the nqcc's.

 







 
 
   







Table 1.  33S nqcc's in (CH3)2S (MHz).  Calculation was made on the rs structure of Hayashi et al. [2].
 
  Calc [a] B3LYP/6-311G(3df,3p)
  Calc [b] B3LYP/TZV+(3df,3p)
 


Calc. [a]

Calc. [b]
 Expt. [1]
   






Xaa - 38.27 - 38.27 - 38.4052(25)
Xbb - 9.75 - 9.82 - 9.7340(31)
Xcc 48.02 48.09 48.1392(36)
 
RMS 0.10 (0.3 %) 0.09 (0.3 %)
RSD 0.39 (1.7 %) 0.35 (1.5 %)
 

 
 
Table 2.  Molecular structure parameters, rs [2]. (Å and degrees/minutes).  Z-Matrix.
 
SC 1.802(1)  
CH(4) 1.090 (assumed)
CH(6,7) 1.090(2)
CSC   98o48'(9')
SCH(4) 106o41'(36')
SCH(6,7) 110o46'(18')
H(4)SH(6,7) 109o26'(35')
H(6)SH(7) 109o38'(31')
 
   

[1] U.Kretschmer, H.Hartwig, and H.Dreizler, J.Mol.Spectrosc. 174,137 (1995).

[2] M.Hayashi, N.Nakata, and S.Miyazaki, J.Mol.Spectrosc. 135,270 (1989).

 








 








(CH3)2SO Thiirane Thiophene
 

 








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Molecules/Sulfur
 

 













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Last Modified 26 Sept 2004