Sulfur 33













Calibration of the






B3LYP/6-311G(3df,3p)






and






B3LYP/TZV+(3df,3p)



and
B3LYP/QZVP



models












These are the recommended models, calibration statistics for which are shown below.  A summary of the results for a number of other models is given here.












Calibration was made by linear regression analysis of calculated electric field gradients vs experimental nuclear quadrupole coupling constants.  Calculations of the field gradients were made on the experimental structures of the following molecules:





 

H2S SO2 GeS

OCS SPF3 H2CS

(CH3)2S (CH3)2SO C2H4S
 













33S  B3LYP/6-311G(3df,3p)     PDF






 


Number of Points
27




Correlation Coefficient
0.99990




Residual Standard Deviation
0.39 MHz (1.7 %)




Slope, eQeff/h
-15.508(43) MHz/a.u.




Qeff -66.00(18) mb




Q
-67.8(13) mb [1]


 













33S  B3LYP/TZV+(3df,3p)     PDF





 


Number of Points
27




Correlation Coefficient
0.99992




Residual Standard Deviation
0.35 MHz (1.5 %)




Slope, eQeff/h
-16.092(39) MHz/a.u.




Qeff -68.49(17) mb




Q
-67.8(13) mb [1]


 










33S  B3LYP/QZVP    PDF
 


Number of Points
27




Correlation Coefficient
0.99991




Residual Standard Deviation
0.37 MHz (1.6 %)




Slope, eQeff/h
-15.518(41) MHz/a.u.




Qeff -66.04(17) mb




Q
-67.8(13) mb [1]


 



Reference






[1] P.Pyykkö, Z.Naturforsch 47a,189(1992).












"ab initio Calculation of 33S Quadrupole Coupling Constants.  Reanalysis of the 33S Hyperfine Structure in the Rotational Spectrum of Thiirane" B.Kirchner, H.Huber, G.Steinebrunner, H.Dreizler, J.-U.Grabow, and I.Merke, Z.Naturforsch. 52a,297(1997).












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Sulfur Molecules

















 

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Last modified 1 Feb 2008