even be higher using specifically designed trays although for convenience linear arrays are described the specific arrangement of the molecules and tray compartments can be circular staggered or in any other configuration which can be analyzed by the testing or screening device used as used herein substituted and unsubstituted aryl groups means a hydrocarbon ring bearing a system of conjugated double bonds usually comprising an even number of 6 or more pi bond electrons examples of aryl groups include but are not limited to phenyl naphthyl anisyl toluyl xylenyl and the like according to the present invention aryl also includes aryloxy aralkyl aralkyloxy and heteroaryl groups e g pyrimidine morpholine piperazine piperidine benzoic acid toluene or thiophene and the like these aryl groups may also be substituted with any number of a variety of functional groups in addition to the functional groups described above in connection with substituted alkyl groups and carbocyclic groups functional groups on the aryl groups can be nitro groups as mentioned above these structural moieties can also be any combination of alkyl carbocyclic or aryl groups for example 1 cyclohexylpropyl benzylcyclohexylmethyl 2 cyclohexylpropyl 2 2 methylcyclohexylpropyl 2 2 methylphenylpropyl 2 2 methylphenylbutyl and the like in one preferred embodiment of the present invention one or more of the structural diversity elements r or nu are reactive groups that are capable of further reactions to produce a base module for example the present invention is directed to structural diversity groups that may themselves be capable of further reaction to form base modules as.