Patent ID: 8841281

Claim:
A piano stool complex of Formula 3: wherein M is chosen from any transition metal that is not ruthenium or osmium, or M is chosen from any lanthanide or actinide-metal; and wherein L 1 , L 2 is an N,O chelate and where L 3 is a halogen; and wherein is an aromatic ligand capable of pi-complexing to the metal; wherein the N,O chelate is: wherein the nitrogen (N) and oxygen (O) atoms bond with M, wherein the atoms indicated with * are chiral; and wherein R is chosen from any of: or wherein R is chosen from a substituted or unsubstituted, saturated or unsaturated C 1-20 alkyl group, and optionally R additionally bonds with the adjacent nitrogen atom or adjacent carbon atom (where R replaces the oxygen of the carbonyl group) to form a 3-, 4-, 5-, 6-, 7-, 8-, or 9-membered ring structure, wherein the ring structure is unsubstituted or comprises an alkyl substituent, and wherein the ring structure comprises one or more heteroatom, and wherein the ring structure is optionally substituted with a halogen or hydroxyl group; or wherein R is CF 3 ; and optionally one or more hydrogen atom on the nitrogen of the L 1 , L 2 chelate is replaced with one or more C 1-10 alkyl group; wherein is chosen from one of the following ligands: wherein R 5-11 can be the same or different and chosen from hydrogen or any unsubstituted or unsubstituted alkyl group comprising from 1-20 carbon atoms; or an enantiomer thereof, or a diastereoisomer thereof, or a racemic mixture of stereoisomers thereof, or a salt thereof, or any combination thereof.