Patent ID: 7192650

Claim:
A photo-functional molecule element having, on a substrate, a porphyrin polymer containing covalently-fixed porphyrin units represented by the following formula (VIII) or (VIII′): [wherein a represents H, an alkyl group or an aryl group; X represents —O—, —S—, >NR 101 (wherein R 101 represents H or an alkyl group), —CH 2 — or a single bond; Y represents ═O, ═S or 2H; m represents an integer of 0 to 4; n represents an integer of 0 to 6; Z 1 represents a 5- or 6-membered nitrogen-containing heteroaromatic ring group capable of forming a coordination bond; Z 2 represents a group having a functional group which can be an electron acceptor or electron donor, or a group which can be the terminal group of the porphyrin polymer; D represents a divalent group including at least one of an arylene group and an alkylene group; E represents a trivalent group including at least one of an arylene group and an alkylene group; M represents an ion of metal selected from the group consisting of typical metals and transition metals; Q represents a single bond or a divalent linking group; and p represents an integer of 1 or more, and wherein a plurality of the repeating unit consisting of two porphyrin derivatives that are boned with the two covalent bonds may be the same or different to each other].