TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Compound Preparation: Cyano compound (I) is prepared by (i) reacting monomethylated glycol with a nitro-tri(3-chloropropyl)methane and producing nitrotris(triethylene glycol); (ii) reducing the product to a corresponding amine; and (iii) treating the amine with phosgene (equivalent) to produce an isocyanate. The amine is optionally coupled with nitrotris(acid chloride) and reduced before treatment with phosgene to produce a second generation dendron.Framework Preparation: Dendrimer frameworks preparation comprises (ai) reacting triethylene glycol separately with ethyl diazoacetate and benzyl chloride to yield separately an ester and benzyl ester of formula HO-CH2CH2-O-CH2CH2-O-CH2CH2-O-R where:R = CO2Et or benzyl;(aii) converting a free hydroxyl of the ester to an amine; (aiii) coupling the amine with nitritris (acid chloride) and subsequently reducing the nitro group to form an aminotriester; (aiv) forming a dendrimer core by reacting triacid C(CH2OCH2CH2CO2H)4 with the amine; and (av) performing selective ester hydrolysis of the core followed by coupling of a monomer of formula H2N-(-CH2CH2-CONH-CH2CH2-O-CH2CH2-O-CH2CH2-O-R)3 (II) (sic) to yield a first generation dendrimer. An alternative method comprises (bi) reacting triethylene glycol separately with ethyl diazoacetate and benzyl chloride; (bii) reducing a triacid of formula RO-CH2CH2-O-(-CH2CH2-O-CH2CH2-OH)3 (sic) by treatment with acetyl chloride to convert the benzyl to a mesylate and a reaction triol; (biii) reacting the mesylate with pentaerythritol and reducing to yield a core of formula C-CH2-(-O-CH2CH2-O-CH2CH2-O-CH2CH2-O-R)4 (sic); and (biv) deprotecting an acetyl moiety on the triacid, transforming to a mesylate and attaching to the core forms a first tier polyether dendrimer.Macromolecule Preparation: Method of making metallo-based (macro)molecules comprises (providing monomers) consisting of bipyridal- and terpyridal-based ligands; combining monomers with connecting metals; and allowing macrocycles to self-assemble by interconnecting monomers by metals. Monomer is a bis(terpyridine) and the metal is Ru. Bis(terpyridine) includes two ligating moieties having a 120degrees concave angle with respect to the ligating moieties and is combined with six Ru connecting metals to self-assemble a hexaruthenium macrocycle. The solubility of the formed macrocycle is modified by exchanging counter ions with a carboxylate-terminated dendrimer to produce an aqueous soluble product. Bis(terpyridine) monomers (120degrees ligating moieties) is prepared by treating 2-formyl-5-methylbenzaldehyde with excess 2-acetylpyridine. The formed monomer is optionally reacted with RuCl3-NH2 to produce a paramagnetic bis Ru(III) adduct and then treated under reducing conditions to yield a self assembled diamagnetic, hexameric Ru(II) complex.Preferred Monomer: Amide-containing branched amine monomer is of formula H2N-C-(-CH2CH2-CONH-CH2CH2CH2-CO2-(CH3)3)2-CH2CH2CONH-C-(-CH2CH2CH2-CO2-(CH3)3)2-CH2CH2-CONH-((C5NH3)-(C5NH4)) (M).Preferred Dendrimer: Dendrimer includes a single ligating moiety bound to a surface of each quadrant of the dendrimer, and optionally includes a tetravalent core.Preferred Array Compound: Compound includes building blocks having ligating means for positioning metals with a network of the building blocks and possessing the capability of energy storage and release through the metals. Primary building block is a bis(terpyridine) of formula (B). Metals provide connection between the building blocks and comprise Cu, Fe, Ru, Os, Zn, Co, Ni, Mn, Pd, Pt, Rh, Re, W, Ir, Au or Ag. EXAMPLE - None given.