Metal complexes of π-expanded ligands (2): Synthesis and characterizations of bis[2-[(octylimino)methyl]-1-pyrenolato-N,O] palladium(II) and the stabilized vacant dx2-y2

Syntheses and Structures of Ni(II) Complexes Containing 2‑alkyliminomethyl Pyrene Ligands

“…General Procedures. General experimental details have already been reported in previous items [33,34].…”

“…The addition of base is also crucial to prevent 1 from being decomposed in an acid environment that was created when adding metal cation into the solution as mentioned in above items [33,34]. 1(Ni) was obtained from the reaction mixture as a yellow solid with a These show that the complex has two polymorphs: black form and yellow form.…”

“…As part of our research program on the syntheses and characterizations of π-expansionbased salicylaldimine-type ligands and corresponding metal complexes [33,34], in this part, we describe the synthesis, characterizations and crystal structure of new nickel(II) complex 1(Ni) with our reported ligand, 1-hydroxy-2-[(octylimino)methyl]pyrene.…”

Syntheses and Characterizations of Platinum Complexes with New Pyrene-based Salicylaldiminato-type Ligand Substituted at 7-Position of Pyrene

“…Previously, the author found that pyrene-based salicylaldiminato-type platinum complexes can be potential for chemosensors and organic devices such as OLEDs or DSSCs but they are still not suitable for those commercial applications where solubility, color purity, and strong emission are needed. 18,19 In the present investigation, the author discusses the structural and photophysical properties of two isomeric platinum(II) complexes and the syntheses of two new isomeric pyrene-based salicylaldimine-type ligands substituted by tert-butyl group at 7-position of pyrene and substituted by the bulky group, 2,6dimethylphenyl, on the imine group, leading to the redshift in both absorption and emission spectra compared to our reported platinum complexes. Moreover, interesting properties were also exhibited such as upfield signals in NMR spectra due to the effect of ring currents of benzene rings and stabilized radicals in electrochemical study.…”

“…Consequently, the ligands 3, 4, and the complexes were prepared following usual manner in previous reports. 18,19 It should be mentioned that the compound 16 has a solid-state at room temperature if the author dries it enough and the interactions between the bulky group on imine group of the ligands and confront pyrene moieties require a long reaction time for the metalation reaction.…”