Alkaline earth metal complexes and their use

Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing

Reexamination Certificate

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C564S502000, C564S511000, C427S248100, C427S255190

Reexamination Certificate

active

07132556

ABSTRACT:
Chelate complexes of calcium, strontium and barium formed with ligands that are beta-ketiminate compounds having a scorpion tail; intermediate compounds useful in producing the aforementioned complexes; a method for producing such complexes, and the use of such complexes for depositing layers containing calcium, barium or strontium.

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Daniel B. Studebaker, et al., “Encapsulating Bis(β-Ketoiminato) Polyethers. Volatile, Fluoride-Free Barium Precursors for Metal-Organic Chemical Vapor Deposition”, Inorganic Chemistry, 2000, pp. 3148-3157, 39, American Chemical Society.
William S. Rees, Jr., et al., “Alkoxyalkyl-Substituted β-Diketonate Complexes of Barium and Copper: Evidence for Inter- and Intramolecular Stabilization”, Angew. Chem. Int. Ed. Engl., 1992, pp. 735-736, 31, No. 6, Weinheim.
F. Albert Cotton, et al., The First Complex with ao2n4Triple Bond between Vanadium Atoms in a Ligand Framework of Fourfold Symmetry-[V2{(p-CH3C6H4)NC(H)N(p-C6H4CH3)}4].
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Neumayer et al, Approaches to Alkaline Earth Metal-Organic Chemical Vapor Deposition Precursors, Synthesis and Characterization of Barium Fluoro-β-ketoiminate Complexes Having Appended Polyether “Lariats”, Inorg. Chem. 1998, 37, 5625-5633.

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