TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Compound: The metallic element is iron or copper.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Process: The coordinate bonding of the metallic element is carried out to 2-functional groups of terminal of the aromatic compound (1) bonded directly or indirectly on the substrate, and a chelate ring is formed (process ii). Then, the coordinate bonding of the aromatic compound (1) is carried out to metallic element, and a chelate ring is formed (process iii). The process (ii) and process (iii) are repeated, to manufacture metal complex thin film. Preferred Material: The metal complex thin film contains several metal complex arranged on the substrate. The metal ion and the aromatic compound (1) are bonded together alternately in the metal complex thin film. Preferred Property: The metal complex thin film has crystallinity. Preferred Compound: The aromatic compound is an oxalic acid or 2,5-dihydroxy-1,4-benzoquinone. A nitrogen-containing compound of formula (2 or 3) is further used during manufacture of metal complex thin film. The nitrogen-containing compound is a dithiooxamide.R1,R2,R4,R5=H, 1-12C alkyl, alkoxy alkyl, aryl or aminoalkyl;andR3=single bond, sulfur, oxygen or ( pi ) conjugation atom. EXAMPLE - A glass substrate was immersed in ethanol solution of aminopropyl trimethoxysilane at room temperature for 1.5 hours, and the glass substrate was cleaned. Then, the glass substrate was dried by spraying nitrogen gas, to obtain glass substrate bonded with aminopropyl group through -Si-O- bonding. Then, the obtained glass substrate was soaked in mixture containing acetonitrile, phosphoryl chloride and lutidine, to obtain glass substrate modified by phosphate residue. Then, the glass substrate was immersed in aqueous solution of iron sulfate at a room temperature for 30 minutes and dried. Then, the glass substrate was immersed in ethanol solution and dried. The organic ligand (2,5-dihydroxy-1,4-benzoquinone) was coordinated to ferric ion, and a chelate ring was formed. Thus, a metal complex thin film was manufactured. The obtained metal complex thin film had excellent crystallinity.