Metallic composite, and mixtures thereof

Metal composite composition having a molecular weight of 200 or more conjugated compound adsorbed on the metal complex and an ionic compound of a metal nanostructure an aspect ratio of 1.5 or more formed body (here, the ionic compound is a conjugated compound, an ionic compounds having a molecular weight less than 200 conjugated compound);. a mixture of compounds containing a metal like composite composition and molecular weight of 200 or more conjugated. The ionic compound may be a compound represented by the following structural formula (hh-1) has. Mm + represents a '+ aX'n'-b (hh-1) (In the formula, Mm' .a metal cation .X'n'- represents an anion and b are each independently an integer of 1 or more, respectively, a plurality Mm 'and the + X'n'-, which may be the same or different.).