Patent ID: 8436172
Filing Date: 2013-05-07
Classification: C07F,C09K,H01L,H05B

Abstract:
1. A method for selecting an iridium complex represented by the following formula (1) comprising: selecting the iridium complex represented by the following formula (1) and having a rate of weight loss of 45% or greater when the iridium complex is heated to 500° C. at 2° C./min under a degree of vacuum of from 1×10 carrying out a sublimation purification of the iridium complex: wherein each of R R R R the ring Q represents 6-membered heteroaryl ring having one nitrogen atom as heteroatom which is fused to a 6-membered aryl ring coordinated to iridium; (X-Y) represents acetylacetonate or picolinate, or derivatives thereof; and n stands for an integer from 1 to 3.