Facial tris-cyclometallated group 9 complex synthesis

Details Facial tris-cyclometallated group 9 complex synthesis Facial tris-cyclometallated group 9 complex synthesis

2004-12-17

2008-08-26

Davis, Zinna N (Department: 1625)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

active

07417146

ABSTRACT:
A process for forming a facial tris-cyclometallated rhodium or iridium complex isomer from a meridional isomer comprises subjecting the meridional isomer to an isomerization reaction in the presence of an acid, an organic solvent, and silica particles.

REFERENCES:
patent: 2001/0019782 (2001-09-01), Igarashi et al.
patent: 2003/0068526 (2003-04-01), Kamatani et al.
S. Huo, “Synthesis for Organometallic Cyclometallated Transition Metal Complexes”, U.S. Appl. No. 10/729,207, (D-87050) filed Dec. 5, 2003.
A. B. Tamayo, et al., “Synthesis and Characterization of Facial and Meridional Tris-cyclometalated Iridium(III) Complexes”, J. Am. Chem. Soc., 2003, pp. 7377-7387.

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