Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing
Reexamination Certificate
2004-05-18
2009-10-13
Padmanabhan, Sreeni (Department: 1617)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heavy metal containing
C556S007000, C556S008000, C548S100000, C548S101000, C548S110000, C534S015000, C534S016000
Reexamination Certificate
active
07601859
ABSTRACT:
Organometallic complexes comprising a trivalent lanthanide metal ion complexed with one or more polydentate ligands containing one or more pyrazolyl-derived groups, such as trispyrazolyl borate species, are useful in light emitting materials e.g., in electroluminescent flat panel displays. In the complexes, several classes of which are novel, a coordinate bond is formed between the metal and one of the nitrogen atoms of the pyrazolyl rings.
REFERENCES:
patent: 5237069 (1993-08-01), Newman
patent: 5627164 (1997-05-01), Gorun et al.
patent: 5707745 (1998-01-01), Forrest et al.
patent: WO 93/11433 (1993-06-01), None
patent: WO 98/06242 (1998-02-01), None
Apostolidis et al. (Polyhedron, 16, 7, 1057-68, 1997.
Sun et al. (Inorganic Chimica Acta 255, 355-360, 1997).
Richter et al. (E J of Solid State and Inorganic Chemistry, 1996, 33, 10, 1063-69), (STIC/Abstract-attached) only.
Takats (J of Alloys and Compounds, 249, 1997, 52-55).
Liu et al. (Inorg Chem 1996, 35, 76-81).
Maunder et al (Inorg Chem 1996, 35, 76-81).
Chemical Physics Letters; vol. 276, No. 5-6; Armaroli et al., “Luminescence properties of Eu/sup 3+/, Tb/sup 3-/, and Gd/sup 3+/ Complexes of the Hexadentate N-donor Podand Tris-3-(2-pyridyl)pyrazol-lylhydroborate”; Sep. 1997; pp. 435-440.
Jones et al., “Lanthanide Complexes of the Hexadentate N-donor Podand Tris [3-(2-pyridyl)pyrazoyl] hydroborate: Solid State and Solution Properties” Inorg. Chem, 1997, 36(1), 10-18.
Lawrence et al., “Heteroleptic Poly(pyrazoly)borate Derivatives of the Lanthanides. Structural and Electronic Spectral Studies of Somesalicylaldehyde Complexes”, J. Chem. Soc., Dalton Trans. (1996), (4), 501-7.
Reger et al., “Luminescence Studies if Tris[dihydrobis(1-pyrazolyl)borato]terbium(III)”, Inorg. Chem., (1991), 30(10), 2397-402.
Seminara et al., “Absorption and Emission Spectra of Neodymium(III) and Europium(III) Complexes”, Inorg. Chem. Acta (1984), 95(6), 291-307.
Isis Innovation Limited
Padmanabhan Sreeni
Ramachandran Umamaheswari
Volpe and Koening P.C.
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