Synthesis of volatile fluorinated and non-fluorinated metal-beta-ketonate and metal-beta-ketoiminato complexes
AssigneeAir Products and Chemicals, Inc.
InventorsJohn C. Ivankovits, David A. Bohling, John A. T. Norman, David A. Roberts
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Abstract
A process for the vapor-phase synthesis of non-adduct volatile fluorinated and non-fluorinated metal-ligand complexes comprising contacting a .beta.-diketone or .beta.-ketoimine ligand with an inert carrier gas to vaporize the ligand, reacting the vaporized ligand with a metal species at a temperature sufficient to form the metal-ligand complex and recovering the metal-ligand complex by sublimation. The process is conducted in the absence of solvent thereby providing pure non-adduct metal-ligand complexes. Such complexes are particularly suited for specialty applications requiring use of high purity compounds.
Claims43
A process for preparing a metal-ligand complex comprising:
- contacting a .beta.-diketone or .beta.-ketoimine ligand with an inert carrier gas to vaporize the ligand;
- reacting the vaporized ligand with a metal species at a temperature sufficient to form the metal-ligand complex;
- and recovering the metal-ligand complex by sublimation.
A process for preparing a metal-ligand complex comprising:
- contacting a .beta.-diketone ligand represented by the formula:
- ##STR16## wherein R.sub.1 and R.sub.3 are independently selected from a linear or branched alkyl or alkenyl group having from 1 to about 8 carbon atoms, each of which can optionally be partially or fully fluorinated;
- and
- R.sub.2 is selected from a hydrogen atom, a linear or branched alkyl or alkenyl group having from 1 to about 8 carbon atoms, each of which can optionally be partially or fully fluorinated;
- with an inert carrier gas to vaporize the ligand;
- reacting the vaporized ligand with a metal species at a temperature sufficient to form the metal-ligand complex;
- and recovering the metal-ligand complex by sublimation.
A process for preparing a metal-ligand complex comprising:
- contacting a .beta.-ketoimine ligand represented by the formula:
- ##STR17## R.sub.1 and R.sub.3 are independently selected from a linear or branched alkyl or alkenyl group having from 1 to about 8 carbon atoms, each of which can optionally be partially or fully fluorinated;
- R.sub.2 is a hydrogen atom, or a linear or branched alkyl or alkenyl group having from 1 to about 8 carbon atoms, each of which can optionally be partially or fully fluorinated;
- and
- R.sub.4 is selected from an alkyl, aryl, aralkyl or hydroxyalkyl group having from 1 to about 10 carbon atoms, each of which can optionally be partially or fully fluorinated;
- with an inert carrier gas to vaporize the ligand;
- reacting the vaporized ligand with a metal species at a temperature sufficient to form the metal-ligand complex, and recovering the metal-ligand complex by sublimation.
A process for preparing a metal-ligand complex comprising contacting a ligand represented by the formula:
- ##STR18## wherein R.sub.1 and R.sub.3 are independently selected from a linear or branched alkyl or alkenyl group having from 1 to about 8 carbon atoms, each of which can optionally be partially or fully fluorinated;
- R.sub.2 is a hydrogen atom, or a linear or branched alkyl or alkenyl group having from 1 to about 8 carbon atoms, each of which can optionally be partially or fully fluorinated;
- R.sub.5, R.sub.6 and R.sub.7 are independently selected from a linear or branched alkyl or alkenyl group having from 1 to about 8 carbon atoms, each of which can optionally be partially or fully fluorinated;
- and
- R.sub.8 is a linear or branched alkylene, alkenylene, phenylene, alkylphenylene or hydroxyalkylene group having from 1 to about 8 carbon atoms, each of which can optionally be partially or fully fluorinated;
- with an inert carrier gas to vaporize the ligand;
- reacting the vaporized ligand with a metal species at a temperature sufficient to form the metal-ligand complex, and recovering the metal-ligand complex by sublimation.
Dependencies are inferred from the claim text.