Patent ID: 8070934

Claim:
A transition metal complex having the formula: wherein c is a negative, neutral, or positive charge represented by âˆ’1 to âˆ’5, 0, or +1 to +5, inclusive, respectively; d is a number of counter ions, X, from 0 to 5, inclusive; M is cobalt, iron, osmium, ruthenium, or vanadium; L 1 has the formula: wherein R 11 , R 12 , R 14 and R 15 are independently â€”H, â€”F, â€”Cl, â€”Br, â€”I, â€”NO 2 , â€”CN, â€”CO 2 H, â€”OH, â€”NH 2 , alkoxycarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, alkoxy, alkylamino, dialkylamino, alkanoylamino, arylcarboxamido, hydrazino, alkylhydrazino, hydroxylamino, alkoxyamino, alkylthio, alkenyl, aryl, or alkyl and R 13 is a C1-C2 alkylamino; L 2 is a negatively charged ligand; and L and Lâ€² are independently: wherein Râ€² 1 is a substituted or an unsubstituted alkyl, alkenyl or aryl; each of R a and R b is independently â€”H, â€”F, â€”Cl, â€”Br, â€”I, â€”NO 2 , â€”CN, â€”CO 2 H, â€”SO 3 H, â€”NHNH 2 , â€”SH, â€”OH, â€”NH 2 , or substituted or unsubstituted alkoxycarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, alkoxy, alkylamino, dialkylamino, alkanoylamino, arylcarboxamido, hydrazino, alkylhydrazino, hydroxylamino, alkoxylamino, alkylthio, alkenyl, aryl, or alkyl; each of R c and R d is independently â€”H, â€”F, â€”Cl, â€”Br, â€”I, â€”NO 2 , â€”CN, â€”CO 2 H, â€”SO 3 H, â€”NHNH 2 , â€”SH, â€”OH, â€”NH 2 , or substituted or unsubstituted alkoxycarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, alkoxy, alkylamino, dialkylamino, alkanoylamino, arylcarboxamido, hydrazino, alkylhydrazino, hydroxyfamino, alkoxylamino, alkylthio, alkenyl, aryl, or alkyl, or a combination of Rc and Rd forms a saturated or an unsaturated 5- or 6-membered ring; and each of Râ€² 3 and Râ€² 4 is independently â€”H, â€”F, â€”Cl, â€”Br, â€”I, â€”NO 2 , â€”CN, â€”CO 2 H, â€”SO 3 H, â€”NHNH 2 , â€”SH, â€”OH, â€”NH 2 , or substituted or unsubstituted alkoxycarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, alkoxy, alkylamino, dialkylamino, alkanoylamino, arylcarboxamido, hydrazino, alkylhydrazino, hydroxylamino, alkoxylamino, alkylthio, alkenyl, aryl, or alkyl, or a combination of Râ€² 3 and Râ€² 4 forms a saturated or an unsaturated 5- or 6-membered ring.