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Efficient Stereoselective Synthesis and Optical Properties of Heteroleptic Square‐Planar Platinum(II) Complexes with Bidentate Iminopyrrolyl Ligands
Author(s) -
Inoue Ryo,
Morisaki Yasuhiro
Publication year - 2020
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.202000689
Subject(s) - chemistry , platinum , denticity , dimer , supramolecular chemistry , phosphorescence , ligand (biochemistry) , luminescence , stereoselectivity , photochemistry , stereochemistry , combinatorial chemistry , catalysis , fluorescence , crystallography , crystal structure , organic chemistry , biochemistry , physics , receptor , optoelectronics , quantum mechanics
Heteroleptic platinum(II) complexes find wide application in supramolecular and photochemistry. Nevertheless, efficient methods for their preparation are limited. Herein, we report a novel synthetic approach toward heteroleptic trans ‐bis(iminopyrrolyl)Pt(II) complexes with N ‐propyl, ‐pentyl, ‐methoxyethyl, and ‐phenyl substituents using a Zeise's dimer analog as the platinum source. The developed route, which consists of two sequential complexation reactions with the corresponding sodium salt of the iminopyrrolyl ligand, is operationally simple and delivered the mono and trans ‐bis coordinated products quantitatively and highly stereoselectively. The obtained Pt(II) complexes exhibited crystallization‐induced phosphorescent emission enhancement behavior. Furthermore, the luminescence properties were dependent on the substituents on the nitrogen atoms of the iminopyrrolyl ligands. Hence, this study is expected to have important implications in the fields of supramolecular and photochemistry.