An Efficient and Stereoselective Synthesis of (E)-α-Enones via Arsonium Salts. Preparation of Key Intermediates for the Synthesis of Brassinosteroid and Prostaglandin
MATERIAL FOR ORGANIC ELECTROLUMINESCENCE ELEMENT AND ORGANIC ELECTROLUMINESCENCE ELEMENT USING THE SAME, AND METHOD FOR MANUFACTURING ORGANIC ELECTROLUMINESCENCE ELEMENT
申请人:Takaku Koji
公开号:US20130033174A1
公开(公告)日:2013-02-07
A material for organic electroluminescence element, including: a phosphorescent compound; and a discotic liquid-crystalline host compound, wherein the phosphorescent compound has an aspect ratio of molecule core diameter to molecule core thickness (molecule core diameter/molecule core thickness) of at least 3, and wherein a size ratio of the molecular radius of the phosphorescent compound to the molecular radius of the discotic liquid-crystalline host compound (molecular radius of the phosphorescent compound/molecular radius of the discotic liquid-crystalline host compound) is 0.8 to 1.2.