Title: Heterospiro-compounds and their use as electroluminescent materials
Application Number: 95196941 Application Date: 1995.11.22
Publication Number: 1170425 Publication Date: 1998.01.14
Approval Pub. Date: 2003.02.19 Granted Pub. Date: 2003.02.19
International Classifi-cation: C07C13/72;C08G79/00;C09K11/06;H05B33/14
Applicant(s) Name: Hoechst AG Address:
Inventor(s) Name: W. Kreuder;D. Lopo;J. Salbeck
Attorney & Agent: FAN WEIMIN
Abstract:
    The invention relates the use in electroluminescent devices of heterospiro-compounds of formula (I), in which Psi means an element of the fourth main group of the periodic system of elements, with the exception of carbon, and is preferably Sn, Ge or Si, particularly preferably Ge or Si, and K
Time: 9