Silver β-ketocarboxylate, material comprising the same for forming silver metal, and use thereof

A silver β-ketocarboxylate represented by Formula (1) below:

• wherein in Formula (1), R is a straight, branched or cyclic saturated or unsaturated C1 to C20 aliphatic hydrocarbon group, R1—CY2—, CY3—, R1—CHY—, R2O—, a phenyl group, a phenyl group with one or more substituent groups, R5R4N—, a hydroxyl group (—OH), an amino group (—NH2), or (R3O)2CY—;
• wherein the Y groups are identical or different, and each is a fluorine atom, a chlorine atom, a bromine atom, or a hydrogen atom, R1 is a straight, branched or cyclic saturated or unsaturated C1 to C19 aliphatic hydrocarbon group, or a phenyl group, R2 is a straight, branched or cyclic saturated or unsaturated C1 to C20 aliphatic hydrocarbon group, R3 is a straight, branched or cyclic saturated or unsaturated C1 to C16 aliphatic hydrocarbon group, and R4 and R5 are identical or different, and each is a straight, branched or cyclic saturated or unsaturated C1 to C18 aliphatic hydrocarbon group;
• wherein in Formula (1), the X groups are identical or different, and each is a hydrogen atom, a straight, branched or cyclic saturated or unsaturated C1 to C20 aliphatic hydrocarbon group, R6O—, R6S—, R6—CO—, R6—CO—O—, a halogen (fluorine, chlorine, bromine, iodine), a benzyl group, a phenyl group, a phenyl group or a benzyl group that has one or more substituent groups, a cyano group (—C≡N), a N-phthaloyl-3-aminopropyl group, or a 2-ethoxyvinyl group (C2H5—O—CH═CH—);
• and
• wherein R6 is a straight, branched or cyclic saturated or unsaturated C1 to C10 aliphatic hydrocarbon group, a thiophene group (C4H3S—), a phenyl group, a diphenyl group, or a phenyl group or a diphenyl group that has one or more substituent groups.