Yttrium semiempirical and/or MM computations



 Dear netters,
 I would appreciate any reference to semiempirical or MM computations
 for systems including Yttrium atoms. Specifically, I'm interested in
 a complex containing a formal Y3+ ion.
 thanks in advance,
 josema
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 	   _     Jose Manuel Martinez Fernandez, Ph.D.              _
 	   _  	Dept. de Quimica Fisica, Universidad de Sevilla     _
 	   _  	Facultad de Quimica, SEVILLA 41012, SPAIN           _
 	   _              josema(-(at)-)mozart.us.es                       _
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