Patent ID: 7932404

Claim:
An organometallic complex of a metal Me selected from the group consisting of Ru, Os and Fe, comprising as a ligand a compound L1, said complex being of formula Me L1 L(Z) 2 (I) if L1 is a compound of formula (a), (b), (c), (d), (g), (h), (i) or (j) or of formula Me L1 LZ (II) if L1 is a compound of formula (e) or (f), wherein at least one of substituents —R, —R 1 , —R 2 , —R 3 , —R′, —R 1 ′, —R 2 ′, —R 3 ′ or —R″ is a substituent selected from formula (1), (2) or (3) wherein p is an integer from 1 to 4, wherein q is an integer from 1 to 4, wherein Rar is a monocyclic or polycyclic aryl from C6 to C22, wherein each —Ral is selected from —H, —R1, —(O—R1) n , —NHR1, —N(R1) 2 , wherein R1, R′1 is an alkyl from 1 to 10 carbon atoms, wherein X is from 0 to 20, wherein n is from 0 to 5, wherein Y is from 1 to 8, wherein Z is 1 or 2, and wherein the other one(s) of substituents —R, —R 1 , —R 2 , —R 3 , —R′, —R 1 ′, —R 2 ′, —R 3 ′ and/or —R″ is (are) the same or a different substituent of formula (1), (2) or (3), or is (are) selected from H, OH, R2, (OR2) n , N(R2) 2 , a linear polyether or a cyclic polyether, wherein R2 is an alkyl of 1-20 carbon atoms, and wherein 0<n<5; wherein L is a ligand of formula wherein A and A′ are anchoring groups selected from COOH, PO 3 H 2 , PO 4 H 2 , SO 3 H 2 , SO 4 H 2 , CONHOH, deprotonated forms thereof or chelating groups with π conducting character; and wherein Z is selected from the group consisting of H 2 O, Cl, Br, CN, NCO, NCS and NCSe.