Complex fluorene-containing compounds

   
   

An organic compound comprising a complex fluorene structure represented by one of the following formulas: ##STR1## wherein: X.sub.1, X.sub.2, X.sub.3, and X.sub.4 are individually the same or different and include a moiety containing CH or N; R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are substituents each being individually hydrogen, or alkyl, or alkenyl, or alkynyl, or alkoxy of from 1 to 40 carbon atoms; aryl or substituted aryl of from 6 to 60 carbon atoms; or heteroaryl or substituted heteroaryl of from 4 to 60 carbons; or F, Cl, or Br; or a cyano group; or a nitro group; or R.sub.3, or R.sub.4 or both are groups that form fused aromatic or heteroaromatic rings.

Un residuo organico che contiene una struttura complessa del fluorene rappresentata da una di seguenti formule: ## del ## STR1 in cui: X.sub.1, X.sub.2, X.sub.3 e X.sub.4 sono individualmente gli stessi o differenti ed includono una parte che contiene il CH o la N; R.sub.1, R.sub.2, R.sub.3 e R.sub.4 sono sostituenti ciascuno che รจ individualmente idrogeno, o alchile, o alchenile, o alkynyl, o alcossi di 1 - 40 atomi di carbonio; arile arilico o sostituito di 6 - 60 atomi di carbonio; o heteroaryl o heteroaryl sostituito di 4 - 60 carbonio; o F, Cl, o Br; o un gruppo ciano; o un gruppo nitro; o R.sub.3, o R.sub.4 o entrambi sono gruppi che formano gli anelli aromatici o heteroaromatic fusi.

 
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