申请人:Philadelphia College of Pharmacy and Science
公开号:US05587112A1
公开(公告)日:1996-12-24
A new class of proton transfer, benzazole, fluorescent compounds is composed of a 2-benzazolyl moiety covalently bonded to an aromatic fused ring heterocyclic moiety. The 2-benzazolyl moiety may be a 2-benzoxazolyl, 2-benzothiazolyl, or 2-benzimidazolyl. The aromatic fused ring heterocyclic moiety may be a 3-dibenzofuranyl or 3-dibenzothiophenyl each substituted at the 2 position with a proton donating group, or a 2-carbazolyl substituted at the 3 position with a proton donating group. The proton donating group may be hydroxy, sulfonamido, carbonamido, and the like, and preferably is hydroxy. The fluors are soluble in organic matrix materials such as solvents, monomers, resins, polymers, and the like. The UV-excited fluors emit short-lived fluorescence at .gtoreq.520 nm and may be used in the manufacture of fluorescent coatings, objects, scintillators, light sources and the like. The fluors are particularly useful for radiation-hard, solid scintillators for the detection and measurement of high energy particles and radiation and for UV filter materials.
一种新型的质子转移,苯唑类荧光化合物由一个2-苯唑基团共价键合到一个芳香融合环杂环基团上组成。2-苯唑基团可以是2-苯并噁唑基、2-苯并噻唑基或2-苯并咪唑基。芳香融合环杂环基团可以是3-二苯并呋喃基或3-二苯并噻吩基,每个基团在2位置上带有一个给质子的基团,或者是一个2-咔唑基,在3位置上带有一个给质子的基团。给质子的基团可以是羟基、磺酰胺基、碳酰胺基等,最好是羟基。这些荧光物质在有机基质材料中溶解,如溶剂、单体、树脂、聚合物等。UV激发的荧光物质在≥520纳米处发射短寿命荧光,可用于制造荧光涂料、物体、闪烁体、光源等。这些荧光物质特别适用于辐射硬化、固体闪烁体,用于检测和测量高能粒子和辐射,以及紫外线滤光材料。