Volatile Imidazoles and Group 2 Imidazole Based Metal Precursors
申请人:Norman John Anthony Thomas
公开号:US20120035351A1
公开(公告)日:2012-02-09
Sterically hindered imidazole ligands are described, along with their synthesis, which are capable of coordinating to Group 2 metals, such as: calcium, magnesium, strontium, in an eta-5 coordination mode which permits the formation of monomeric or dimeric volatile complexes.
A compound comprising one or more polysubstituted imidazolate anions coordinated to a metal selected from the group consisting of barium, strontium, magnesium, radium or calcium or mixtures thereof. Alternatively, one anion can be substituted with and a second non-imidazolate anion.
Synthesis of the novel compounds and their use to form BST films is also contemplated
In one aspect, the invention relates to compounds having the formula:
wherein: Ar, r, Z, X, R
3
, and R
5-7
are as defined in the specification, or a pharmaceutically acceptable salt thereof. These compounds have AT
1
receptor antagonist activity and neprilysin inhibition activity. In another aspect, the invention relates to pharmaceutical compositions comprising such compounds; methods of using such compounds; and process and intermediates for preparing such compounds.
Metal imidazolate complexes are described where imidazoles ligands functionalized with bulky groups and their anionic counterpart, i.e., imidazolates are described. Compounds comprising one or more such polyalkylated imidazolate anions coordinated to a metal or more than one metal, selected from the group consisting of alkali metals, transition metals, lanthanide metals, actinide metals, main group metals, including the chalcogenides, are contemplated. Alternatively, multiple different imidazole anions, in addition to other different anions, can be coordinated to metals to make new complexes. The synthesis of novel compounds and their use to form thin metal containing films is also contemplated.
Group 2 Imidazolate Formulations for Direct Liquid Injection
申请人:Air Products and Chemicals, Inc.
公开号:EP2644284A1
公开(公告)日:2013-10-02
A composition comprising group 2 imidazolate compounds which are coordinated to suitable neutral donor ligand molecules to provide group 2 metal complexes that are highly soluble in hydrocarbon solvents. In one embodiment, the composition is used for the direct liquid injection delivery of the group 2 precursor to the chamber of an ALD or CVD chamber for the deposition of group 2 containing thin films such as, for example, STO and BST films.