Abstract: This invention relates to a class of aminimides structurally characterized as an acyl nitrogen-nitrogen ylide such that the acyl moiety possess the structural diversity element G, the quaternary nitrogen possess structural diversity elements E and F, and the quaternary nitrogen is bonded to a hydroxyethyl substituent, which in turn is bonded to an aminomethylene moiety that possess structural diversity elements A and B from the amino group and diversity element C from the methylene substituent, as shown below, ##STR1## wherein structural diversity element A, B, C, D, E, F and G are chosen from the set of elements consisting of substituted and unsubstituted as well as branched and straight chain alkyl, aryl, alkaryl, aralkyl, carbocyclic, heterocyclic, hydrogen, amino acid, peptide, polypeptide, protein, depsipeptide, carbohydrate derivatives, nucleotide derivatives, oligonucleotide derivatives, naturally occurring or synthetic organic structural motifs, reporter elements, organic moieties containing at least

Abstract: A method for constructing an array of synthetic molecular constructs, by forming a plurality of molecular constructs having a scaffold backbone of a chemical molecule comprising a linear, branched or cyclic organic compound having at least atoms of carbon, nitrogen, sulfur, phosphorus, or combinations thereof, and at least one location on the molecule capable of undergoing reaction with other molecules for attachment of at least one structural diversity element; laying out an array possessing a logical ordering of sub-arrays of the molecular constructs; providing each sub-array with molecular constructs having the scaffold backbone and at least one structural diversity element which is different from the others; and relating each sub-array within the array to all other sub arrays by the difference in the structural diversity elements.