Tridentate platinum, palladium, and gold complexes of Formulas A-I and A-II and tridentate iridium and rhodium compounds of Formulas B-I, B-II, and B-III suitable for delayed fluorescent and phosphorescent or phosphorescent emitters in display and lighting applications.

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The present invention relates to innovative catalysts for producing oligomeric polyisocyanates. These catalysts comprise polyhedral silsesquioxanes to which cyclic phosphorus(III) or phosphorus(V) compounds have been coupled.

The present invention relates to innovative catalysts for producing oligomeric polyisocyanates. These catalysts comprise polyhedral silsesquioxanes to which cyclic phosphorus(III) or phosphorus(V) compounds have been coupled.

An acetylacetone derivative is useful for capturing a metal element by complexation. A convenient and very versatile synthesis method can be used to synthesize the derivative. The derivative can have the following formula: ##STR00001##

The present specification provides a heterocyclic compound and an organic light emitting device comprising the same.

The invention relates to oligomerization of olefins, such as ethylene, to higher olefins, such as a mixture of 1-hexene and 1-octene, using a catalyst system that comprises a) a source of chromium b) one or more activators and c) a phosphacycle-containing ligating compound. Additionally, the invention relates to a phosphacycle-containing ligating compound and a process for making said compound.

The invention relates to oligomerization of olefins, such as ethylene, to higher olefins, such as a mixture of 1-hexene and 1-octene, using a catalyst system that comprises a) a source of chromium b) one or more activators and c) a phosphacycle-containing ligating compound. Additionally, the invention relates to a phosphacycle-containing ligating compound and a process for making said compound.

The invention features compounds of the general formula (I) in which the variable groups are as defined herein, and to their preparation and use.

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Processes for the generation of thin inorganic films on substrates, in particular atomic layer deposition processes. In particular, a process of bringing a compound of general formula (I) into the gaseous or aerosol state
L.sub.n - - - M - - - X.sub.m(I)
and depositing the compound of general formula (I) from the gaseous or aerosol state onto a solid substrate, wherein
M is a metal,
L is a ligand which coordinates to M and contains at least one phosphorus-carbon multiple bond, wherein L contains a phosphorus-containing heterocyclic ring or a phosphorus-carbon triple bond,
X is a ligand which coordinates to M,
n is 1 to 5, and
m is 0 to 5.

Tridentate platinum, palladium, and gold complexes of Formulas A-I and A-II and tridentate iridium and rhodium compounds of Formulas B-I, B-II, and B-III suitable for delayed fluorescent and phosphorescent or phosphorescent emitters in display and lighting applications. ##STR00001## ##STR00002##