A new luminescent probe based on β- diketonate Eu3+ complex, Eu (TFPB)3AnPy, where AnPy is (1-(anthracen-9-yl)-N-(pyridine-2-ylmethyl) methaneamine and TFPB is benzoyltriluoro acetone was successfully synthesized. The molecular structure of Eu (TFPB)3AnPy determined by SC-XRD show an eight coordination in which Eu3+ is bonded to six oxygen atoms of three TFPB and two nitrogen atoms of the AnPy ligand. The complex could act as a highly sensitive luminescent probe for 1O2 that can be applied in biological systems.
Two Pd(II) and Zn(II) complexes with an anthracene-based thiosemicarbazone (H-5cATSC) have been conveniently prepared. Reaction of the ligand with relevant metal precusors yields the complexes Pd-5cATSC and Zn-5cATSC which have been then structurally determined by X-ray crystallography. The results reveals that the complexes are of mononuclear structure and adopts square-planar and tetrahedral geometries around the central metal ions.
The X-ray structure of 9-anthraldehyde-4-methyl-3-thiosemicarbazone was firstly determined. The Ni(II) complex with this ligand was prepared upon reaction with chloride salt. Mass spectrometry result confirms correct formulation of the complex. Unusual 1H NMR signal pattern of anthracene moiety reveal cis arrangement cemented by intramolecular p–p stackings between aromatic rings. As a result of this interaction, the electronic structure of anthracene ring is perturbed and gives rise to structureless and broad absorption and emission bands.
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