NOVELTY - A 2,4-disubstituted or 2,3,5-trisubstituted metallole (1) is new.    USE - 2,4-Disubstituted or 2,3,5-trisubstituted metallole is used for electronic information material (claimed) for photoelectric converting layer structural component, organic electroluminescent element, solar cell, capacitor, secondary battery, sensor, detector, optical circuit, optical waveguide, transistor and electric circuit.    ADVANTAGE - The 2,4-disubstituted or 2,3,5-trisubstituted metallole controls the performance of metallole freely by selecting the substituent suitably.    DETAILED DESCRIPTION - A 2,4-disubstituted or 2,3,5-trisubstituted metallole of formula (1) is new.    R1,R2=substituent chosen from halogen, alkyl, aryl, alkoxy, aryloxy, alkynyl, alkenyl, fluoroalkyl, fluoroaryl, perfluoroalkyl, perfluoroaryl, alkylcarbonyl, arylcarbonyl, alkylcarbonyloxy, arylcarbonyloxy, alkyloxy carbonyloxy, aryloxy carbonyloxy, amino, nitro, nitroso, azo, sulfanil, sulfonyl, sulfinyl, phosphanyl, phosphinyl, phosphoryl, cyano, isocyano, cyanato, isocyanate, thiocyanato, carbamoyl, formyl, formyloxy, silyl, stanyl, boryl and heterocyclic group, which is substituted through or not through alkylene, arylene, oxyalkylene, arylene, oxyalkylene and oxyarylene;    R3=substituent chosen from hydrogen, halogen, alkyl, aryl, alkoxy, aryloxy, alkynyl, alkenyl, fluoroalkyl, fluoroaryl, perfluoroalkyl, perfluoroaryl, alkylcarbonyl, arylcarbonyl, alkylcarbonyloxy, arylcarbonyloxy, alkyloxy carbonyloxy, aryloxy carbonyloxy, amino, nitro, nitroso, azo, sulfanil, sulfonyl, sulfinyl, phosphanyl, phosphinyl, phosphoryl, cyano, isocyano, cyanato, isocyanate, thiocyanato, carbamoyl, formyl, formyloxy, heterocyclic group, metallic substituent and metalloid property substituent, which is substituted through or not through alkylene, arylene, oxyalkylene, oxyarylene, alkenylene and alkynylene;    R4,R5=substituent chosen from halogen, alkyl, aryl, alkoxy, aryloxy, alkynyl, alkenyl, amino and silyl, which is substituted through or not through hetero atom, and optionally coupled to form monocyclic or condensed ring;and    M=silicon, germanium or tin.