Aluminum













Calibration of the






HF/TZV(2d)



and
HF/aug-cc-pCVDZ/aug-cc-pVDZ *



model
















* aug-cc-pCVDZ on Al, aug-cc-pVDZ on other atoms.  These bases were obtained from the EMSL basis set library.
 
These are the recommended models, calibration statistics for which are shown below.  Results for a number of other models are shown here.
 



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





 

AlF AlCl AlBr AlNC
  



 



27Al  HF/TZV(2d)  PDF


 





Number of Points
12




Correlation Coefficient
0.99999




Residual Standard Deviation
0.13 MHz (0.59 %)




Slope, eQeff/h
29.961(48) MHz/a.u.




Qeff 127.51(20) mb




Q
146.6(10) mb [1]








 



 
27Al  HF/aug-cc-pCVDZ/aug-cc-pVDZ  PDF
 


Number of Points
12




Correlation Coefficient
0.999986




Residual Standard Deviation
0.13 MHz (0.61 %)




Slope, eQeff/h
32.591(54) MHz/a.u.




Qeff 138.71(23) mb




Q
146.6(10) mb [1]


 



 






Reference






[1] V.Kellö, A.J.Sadlej, P.Pyykkö, D.Sundholm, and M.Tokman, Chem.Phys.Lett. 304,414(1999).












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Molecules/Aluminum

















 

Aluminum.html

Last modified 14 Jan 2005