Polydentate polycyclic compounds of various formulas are disclosed herein. The compounds are useful for ratiometric luminescence. Significantly, the compounds will luminesce at different wavelengths/colors, depending on the analyte (metal ion, acid, or boron-containing compound) it is combined with. Thus, a single compound can provide different luminescent outputs based on the analyte, rather than requiring an entire set of structurally different compounds to detect each analyte or to generate a desired color output.

Polydentate polycyclic compounds of various formulas are disclosed herein. The compounds are useful for ratiometric luminescence. Significantly, the compounds will luminesce at different wavelengths/colors, depending on the analyte (metal ion, acid, or boron-containing compound) it is combined with. Thus, a single compound can provide different luminescent outputs based on the analyte, rather than requiring an entire set of structurally different compounds to detect each analyte or to generate a desired color output.

Provided are an electrolytic solution for a non-aqueous secondary battery containing an electrolyte, an organic solvent, and a metal complex represented by General Formula (I), a non-aqueous secondary battery in which the electrolytic solution for a non-aqueous secondary battery is used, and a metal complex. ##STR00001## In General Formula (I), M represents a transition metal. k represents an integer of 0 or more, m represents an integer of 0 to 4, and n represents an integer of 1 or more. Here, k+n represents a valence of M. R.sup.1 represents an alkyl group, an aryl group, an alkoxy group, a carbonyl group-containing group, a sulfonyl group-containing group, or a halogen atom. R.sup.2 and R.sup.3 represent a hydrogen atom, an alkyl group, an aryl group, an alkoxy group, a carbonyl group-containing group, a sulfonyl group-containing group, or a halogen atom. L represents a monodentate ligand.

Provided are an electrolytic solution for a non-aqueous secondary battery containing an electrolyte, an organic solvent, and a metal complex represented by General Formula (I), a non-aqueous secondary battery in which the electrolytic solution for a non-aqueous secondary battery is used, and a metal complex. ##STR00001## In General Formula (I), M represents a transition metal. k represents an integer of 0 or more, m represents an integer of 0 to 4, and n represents an integer of 1 or more. Here, k+n represents a valence of M. R.sup.1 represents an alkyl group, an aryl group, an alkoxy group, a carbonyl group-containing group, a sulfonyl group-containing group, or a halogen atom. R.sup.2 and R.sup.3 represent a hydrogen atom, an alkyl group, an aryl group, an alkoxy group, a carbonyl group-containing group, a sulfonyl group-containing group, or a halogen atom. L represents a monodentate ligand.

The present specification relates to an organic light emitting diode.

The present specification relates to an organic light emitting diode.

The present invention relates to metal complexes and to electronic devices, in particular organic electroluminescent devices, containing these metal complexes.

The present invention relates to metal complexes and to electronic devices, in particular organic electroluminescent devices, containing these metal complexes.

The present specification relates to an organic light emitting diode.

The present specification relates to an organic light emitting diode.