TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The monomer unit is in the form of a metal complex. The metal complex is a platinum, palladium or silver complex. The platinum catalyst is platinum nanoparticles of approximately 4-7 nanometers.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation (Claimed): Preparation of the compound (I) involves: either(1) process (A): a) dissolving a perylene-diimide compound of formula (i) in a protic solvent; and b) forming the dianion compound (I);(2) process (B): a1) brominating perylene-diimide compound of formula (ii) in the presence of bromine and a chlorinated solvent at reflux for a period of time sufficient to obtain a mixture comprising perylene-diimide compounds of formulae (iii) and (iv), a2) separating the compounds (iii) and (iv) regioisomer compounds, and a3) coupling the compound (iv) with a terminal acetylene, vinylstannane, vinylsilane, arylstannane, arylsilane, heteroarylstannane, heteroarylsilane, alcohol or amine reagent and coupling is optionally catalyzed using a transition metal catalyst, to obtain the compound (I) and forming the dianion compound (I); or(3) process (C): dissolving the compound (ii) in a protic solvent and forming dianion compound of formula (Ia).Preparation of the compound (II) or (III) involves: b1) dissolving the perylene-diimide compounds (VIa) and (VIb) in a protic solvent; and b2) forming the dianion compound (II) or (III). The step b) and step b2) involves: adding dithionite in a protic solvent, or adding hydrazine and a platinum catalyst. The step a2) involves: recrystallizing the compound (iv). The step a4) involves: adding dithionite in a protic solvent, or adding hydrazine and a platinum catalyst. The recrystallization is from dichloromethane/hexane mixture (vol./vol.1:1). The reaction with dithionite is facilitated with sonication. Preferred Compound: The dianion of doubly reduced perylene-diimide compound (I) is the dianion compound (Ia) (preferably dianion of N,N'-bis(polyethylene glycol (PEG)(17))perylene-3,4:9,10-tetracarboxylic diimide). 5 Dianion of doubly reduced perylene-diimide compound (II) or (III) are given in the specification, e.g. 5,5'-bis(1-PEG-Perylene-diimide (PDI)-7-ethynyl)-2,2'-bipyridine or 1-Br-7-PEG-N,N'-bis(ethylpropyl)perylene-3,4:9,10-tetracarboxylic diimide. 9 Monomer compounds (VIa) or (VIb) are given in the specification e.g. 1-2-bis(N,N'-bis(1-ethylpropyl)-3,4,9,10-tetracarboxylic diimide-7-(polyethylene glycol)-perylen-1-yl)ethyne, 4'-(4-((N,N'-bis(1-ethylpropyl)-3,4,9,10-tetracarborylic diimide-7-(polyethylene glycol)-perylen-1-yl)ethynyl)pheny1)-2,2':6',2''-terpyridine, palladium chloro(4'-(4-((N,N'-bis(1-ethylpropyl)-3,4,9,10-tetracarboxylic diimide-7-(polyethylene glycol)-perylen-1-yl)ethynyl)phenyl)-2,2':6',2''-terpyridine) triflate, platinum chloro(4'-(4-((N,N'-bis(1-ethylpropyl)-3,4,9,10-tetracarboxylic diimide-7-(polyethylene glycol)-perylen-1-yl)ethynyl)phenyl)-2,2':6',2''-terpyridine)triflate or silver aqua(4'-(4-((N,N'-bis(1-ethylpropyl)-3,4,9,10-tetracarboxylic diimide-7-(polyethylene glycol)-perylen-1-yl)ethynyl)phenyl)-2,2':6',2''-terpyridine)triflate. Preferred Components: The chlorinated solvent is dichloromethane, chloroform or chlorinated aliphatic solvent. The protic solvent is water, methanol or ethanol.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The supramolecular polymer is in the form of a gel, ribbon, tube, vesicle or platelet. Preferred Definitions:    R1,R2=1-32C alkyl;    n,q=2 or 3;    L1=ethynyl group, diethynylbenzene group or diethynyldipyridine group;    R5a=-ORx;    Rx=((CH2)nO)o1CH3.    EXAMPLE - Polyethylene glycol-17-N3 (PEG17-N3) (856 mg) and palladium on carbon (Pd/C) (10 mg) were stirred in absolute methanol (15 ml) at room temperature for 72 hours, in a flask, under H2 atmosphere. After workup, PEG-17-NH2 (A1) as off-white pink solid was obtained. PEG-17-NH2 (780 mg), 3,4,9,10-perylene-tetracaroxylic anhydride (120 mg), and imidazole (1.20 g) were mixed in a pressure flask under N2 atmosphere. The mixture was heated to 140 degrees C for 3 days. After cooling to room temperature, dichloromethane (100 ml) was added. After workup, N,N'-bis(PEG(17))perylene-3,4:9,10-tetracarboxylic diimide (A2) (488 mg; 83%) was obtained and further purified to give the compound (A2) (320 mg; 56%). The compound (A2) was reduced in a nitrogen filled glove box using deoxygenated water and sodium dithionite to obtain dianion of N,N'-bis(polyethylene glycol (PEG)(17))perylene-3,4:9,10-tetracarboxylic diimide.