Organic compounds -- part of the class 532-570 series – Organic compounds – Rare earth containing
Patent
1994-01-24
1996-04-02
Wu, Shean C.
Organic compounds -- part of the class 532-570 series
Organic compounds
Rare earth containing
505100, C07F 500
Patent
active
055041957
ABSTRACT:
The invention provides rare earth compounds of formula (ML.sub.3).sub.x A!.sub.y where M is one or more of the rare earth metals and yttrium, L is a beta-diketone type ligand, A is a polyether or polyamine, and x and y are each 1 or 2. These compounds are precursors for chemical vapor deposition (CVD) of oxide layers in applications such as superconductors, piezoelectrics, microwaves, fuel cells, radiation detectors, optoelectronics, and catalysts. They are air and moisture stable, low melting, vacuum volatile at low temperatures leaving minimum residue and give good quality metal oxide deposits uncontaminated by fluorine. These compounds also have excellent solubility in a wide range of organic solvents, and are potentially useful as oil lubricant additives and in fuels.
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Drake Simon R.
Leedham Timothy J.
Rhone-Poulenc Chimie
Wu Shean C.
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