SYNTHESIS OF CYCLOMETALLATED PLATINUM(II) COMPLEXES
申请人:UNIVERSAL DISPLAY CORPORATION
公开号:US20130172561A1
公开(公告)日:2013-07-04
A single-step method of making tetradentate platinum or palladium complexes is disclosed. The method advantageously allows the formation of a platinum or palladium complex in a single step, even with sterically hindered ligands, without the use of highly reactive intermediates. The compounds made by the disclosed method are useful in OLED applications.
The first six-membered gold(III) N⁁C⁁Npincercomplex was obtained in good yield, under very mild conditions, by transmetalation of [Hg(κC-N⁁C⁁N)Cl] (N⁁CH⁁N = 1,3-bis(pyridin-2-ylmethyl)benzene, HL1) with Na[AuCl4]. The X-ray crystal structure of [Au(N⁁C⁁N)Cl][PF6] showed that the fused six-membered metallacycles each exist in a strongly puckered boat conformation. As shown by the 1H NMR spectra in