Patent ID: 8822042
Filing Date: 2014-09-02
Classification: C07F,C09K,H01L,Y10S

Abstract:
1. A compound having the formula I: wherein: X 11^ X 2 is a substituted or unsubstituted bidentate cyclometallated aromatic ligand; X 1 and X 2 are independently selected from C and N; Z is an acetylide ligand having the structure: —C≡C—R 1 , —C≡C—(C≡C) x —R 1 , or —C≡C-(A-C≡C) y —R 1 , each R 1 is independently selected from the group consisting of H, alkyl, cycloalkyl, alkenyl, cycloalkenyl, aryl, heteroaryl, Si(R 2 ) 3 , M(L) z , and a heterocyclic group, each of which may be substituted or unsubstituted; each x is independently selected from 0-5; each y is independently selected from 0-5; each R 2 is independently selected from H, alkyl, cycloalkyl, alkenyl, cycloalkenyl, aryl, heteroaryl, and a heterocyclic group; M is a metal atom; L is a mono-, bi- or tridentate ligand; z is 0-5; A is aryl or heteroaryl; Y is a monodentate ancillary ligand; b is 0, 1, 2, or 3; the sum of a+b+n is 4 or 5; and Cat is an optional cation the charge of which provides a net neutral charge for formula I, wherein n is 2 and a is 2.