Patent ID: 8063216

Claim:
A compound of Formula II: wherein M is Ru or Os; each L 1 is independently an organic molecule having: (a) a 5-membered monocyclic aromatic ring, one of the ring's members being a nitrogen atom that forms a bond with M; (b) a 6-membered monocyclic aromatic ring, one of the ring's members being a nitrogen atom that forms a bond with M; (c) an 8-10-membered bicyclic ring, one of the bicyclic rings being aromatic and having a nitrogen atom member that forms a bond with M; (d) an —NH 2 group whose nitrogen atom forms a bond with M, wherein said organic molecule containing an —NH 2 group is selected from the group consisting of an amino acid, dopamine, GABA, norepinephrine, serotonin, (RS)-(tetrazol-5-yl) glycine, tetrazolyl-α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid, aminobutyric acid, methyl-D-aspartic acid, tyramine, 4-aminopyridine; or (e) a —COOH group, one of whose oxygen atoms forms a bond with M; L 2 is (R 2 ) 3 P, (R 2 O) 3 P, or L 1 , wherein each R 2 is independently —C 1 -C 18 alkyl, —C 3 -C 8 cycloalkyl, or phenyl, and m is 2; R 1 -R 8 are independently —H, —C 1 -C 18 alkyl, —NH 2 , —COOH, —(C 1 -C 18 alkyl)-O—(C 1 -C 18 alkyl), or —OC(O)(C 1 -C 18 alkyl); and X is Cl − , F − , Br − , I − , PF 6 − , CF 3 SO 3 − , (C 1 -C 18 alkyl)-CO 2 − , or (C 1 -C 18 alkyl)-SO 3 − .