Use of chiral, uncharged metal compounds as dopant

专利名称：Use of chiral, uncharged metal compounds

as dopants for liquid-crystalline materials

发明人：Frank Prechtl,Sylke Haremza,Robert

Parker,Kathrin Kurschner,ManfredBraun,Antje Hahn,Ralf Fleischer

申请号：US10011748申请日：20011211

公开号：US20030066984A1公开日：20030410

摘要：Improved liquid crystalline materials may be prepared by doping liquidcrystalline materials with chiral, uncharged metal compounds of formula [(P—Y—A—Y—M—Y—)L]Me or [(P—Y—A—Y—M—Y—)L]Me(L′(—Y—M—Y—A—Y—P)). Groups PandPmay be, independently, hydrogen, C-C-alkyl groups, polymerizable groups, or radicalscontaining a polymerizable group. Yto Ymay be, independently, single chemical bonds,ether groups, thio groups, carbonyl groups, acid groups, etc. Groups Aand Aare spacershaving from 1 to 30 carbon atoms, and Mand Mare mesogenic groups. Me may be atransition metal from the fourth, fifth or sixth period of the periodic table, except fortechnetium, silver, cadmium, gold, mercury, or any of the lanthanoids, or Me may be amain group element from group 14 (IUPAC system), except for carbon and lead. L is atridentate ligand, and L′ is an organic group having up to 12 carbon atoms.

申请人：BASF AKTIENGESELLSCHAFT

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