Patent ID: 7211603

Claim:
A compound of the formula (I): wherein A and A 1 are the same or different and each is (CR 3 R 4 ) m , wherein m is an integer from 0 to 6, and R 3 and R 4 are the same or different and each is hydrogen, a halo, nitro, cyano, azido, or an organic group selected from the group consisting of linear C 1-12 alkyl, branched C 3-12 alkyl, C 2-12 alkenyl, C 3-30 cycloalkyl, C 3-30 heterocycloalkyl, C 6-30 aryl, C 5-30 heteroaryl, benzylcarbonyl, phenylcarbonyl, and a solubilizing group selected from the group consisting of hydroxyl, an amino, an ammonium salt, a phosphate, a sulfate, a carboxylic acid, and a carboxylic acid salt, wherein the organic group is unsubstituted or substituted with one or more substituents selected from the group consisting of a halo, nitro, cyano, azido, C 1-12 acyl, C 6-30 aryl, and a solubilizing group selected from the group consisting of hydroxyl, an amino, an ammonium salt, a phosphate, a sulfate, a carboxylic acid, and a carboxylic acid salt, wherein the dotted line between A and A 1 represents an optional covalent bond linking A and A 1 together; X and X 1 are the same or different and at least one of X and X 1 is and the other of X and X 1 is wherein R 5 , R 6 , R 7 , and R 8 are each selected from the group consisting of hydrogen, C 1-12 alkyl, C 3-30 cycloalkyl, and C 6-30 aryl, wherein the dotted line between X and X 1 represents an optional covalent bond linking X and X 1 together; Z and Z 1 are the same or different and each is C 6-30 diarylphosphinyl, C 1-12 dialkyphosphinyl, (alkyl) arylphophinyl, morpholinyl, oxazolyl, benzofuranyl, benzoxazolyl, thiofuranyl, furanyl, or thiazolyl, wherein p is an integer from zero to two, wherein R 11 and R 12 are each selected from the group consisting of hydrogen, C 1-12 alkyl, C 3-30 cycloalkyl, and C 6-30 aryl; wherein R 13 and R 14 are each selected from the group consisting of hydrogen, C 1-12 alkyl, C 3-30 cycloalkyl, and C 6-30 aryl; wherein Z or Z 1 is unsubstituted or when substitution is possible, substituted with 1 to 3 substituents selected from the group consisting of C 1-12 alkyl, C 1-12 alkoxy, C 6-30 aryl, nitro cyano, halo, amino, C 1-12 alkylamino, and C 1-12 dialkylamino, wherein the dotted line between Z and Z 1 represents an optional covalent bond linking Z and Z 1 together; R 1 and R 2 are the same or different and each is hydrogen, linear C 1-12 alkyl, branched C 3-12 alkyl, an aralkyl, C 6-30 aryl, a halo, nitro, or cyano, or R 1 and R 2 , together with the carbons to which they are bonded, comprise C 6-30 aryl, or C 3-30 heterocycloalkyl, wherein R 1 and R 2 are unsubstituted or, when substitution is possible, substituted with one or more substituents selected from the group consisting of a halo, hydroxy, C 1-12 alkyl, C 6-30 aryl, alkoxy, nitro, and cyano; and wherein X, X 1 , Z, and Z 1 are capable of forming a tetradentate complex with a metal.