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Cyclometallated 2‐Phenylpyrimidine Derived Platinum Complexes: Synthesis and Photophysical Properties
Author(s) -
Fecková Michaela,
Kahlal Samia,
Roisnel Thierry,
Saillard JeanYves,
Boixel Julien,
Hruzd Mariia,
Poul Pascal,
Gauthier Sébastien,
Robinle Guen Françoise,
Bureš Filip,
Achelle Sylvain
Publication year - 2021
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.202100155
Subject(s) - substituent , chemistry , platinum , ring (chemistry) , pyridine , phosphorescence , homo/lumo , ligand (biochemistry) , polar effect , crystallography , photochemistry , medicinal chemistry , molecule , organic chemistry , fluorescence , biochemistry , physics , receptor , quantum mechanics , catalysis
A series of five platinum (II) complexes based on 2‐phenylpyrimidine ligands have been designed. Pyridine and chloride were used as auxiliary ligands. These complexes exhibit a slightly distorted square‐planar geometry. The nature and position of substituent on the phenyl ring was thoroughly studied. The presence of an electron‐donating substituent on the phenyl ring in the para position of the platinum atom leads to a red shift of the lowest‐energy absorption band, which corresponds to the HOMO→LUMO transition and permits to obtain phosphorescence in deoxygenated CH 2 Cl 2 solution. All compounds are emissive in the solid state with a significant redshift for complexes bearing electron‐donating substituent on the phenyl ring of phenylpyrimidine ligand.