| abstract |
The present invention relates to an indeno[1,2-b]indolyl rare earth metal complex and a preparation method thereof. The rare earth metal complex has the chemical formula [I]: Wherein, Ln is the transition metal element of Group IIIB in the periodic table of elements; Z 1 and Z 2 are the same or different from each other; D n is a neutral ligand coordinated with a rare earth metal, and n is an integer greater than or equal to 0; L is the substituent formed by removing the hydrogen on the carbon atom connected to R6 by the chemical formula [II] compound: Wherein, R 1 to R 10 are the same or different. |