| 摘要 |
The invention relates to a compound, having the structure:
wherein
M is a metal having an atomic weight greater than 40;
(C-N) is a substituted or unsubstituted cyclometallated ligand;
each R is independently selected from hydrogen, alkyl, alkenyl, alkynyl, alkylaryl, CF 3 , CO 2 R, C(O)R, NR 2 , NO 2 , OR, halo, aryl, heteroaryl, substituted aryl, substituted heteroaryl, or a heterocyclic group;
additionally or alternatively, any two adjacent substituted positions together form, independently, a fused 4- to 7-memher cyclic group, wherein said cyclic group is cycloalkyl, cycloheteroalkyl, aryl, or heteroaryl, and wherein the 4- to 7-membcr cyclic group may be optionally substituted with substituent R or CN;
X is independently selected from hydrogen, alkyl, alkenyl, alkynyl, alkylaryl, CN, CF 3 , CO 2 R, C(O)R, NR 2 , NO 2 , OR, halo, aryl, heteroaryl, substituted aryl, substituted heteroaryl, or a heterocyclic group;
n has a value of at least 1; and
m + a is the maximum number of ligands that may be attached to the metal. |
