Molecular Tectonics: Design of Enantiopure Luminescent Heterometallic Ir(III)-Cd(II) Coordination Network.
With the aim of combining luminescence and chirality in heterometallic Ir(III)-Cd(II) coordination networks, synthetic strategies for the formation of new Ir(III)-based chiral metallatectons ([Ir(dFppy)2(1)][PF6]), both as a racemic mixture of Δ and Λ enantiomers (rac-[Ir(dFppy)2(1)][PF6]) and as enantiopure complexes (Δ-[Ir(dFppy)2(1)][PF6] and Λ-[Ir(dFppy)2(1)][PF6]), were developed. The final compounds were characterized both in solution and in the crystalline phase. Notably, their crystal structures were determined by single crystal X-ray diffraction, and their photophysical properties in solution and in the solid state were investigated. Combination of the cationic linear metallatecton with Cd(2+) iodide salt ([CdI3](-)), behaving as an anionic two-connecting node, leads to the formation of 1D chiral and neutral heterometallic Ir(III)-Cd(II) luminescent coordination networks both as a racemic mixture and as enantiomerically pure infinite architectures. The latter have been structurally studied in the solid state by X-ray diffraction both on single crystals and on microcrystalline powders. The infinite coordination networks display phosphorescence in the solid state at ca. 600 nm upon excitation at 400 nm.
Molecular Tectonics Laboratory, UMR UDS-CNRS 7140, icFRC, University of Strasbourg , F-67000 Strasbourg, France.
Chaojie
C
Xu
Molecular Tectonics Laboratory, UMR UDS-CNRS 7140, icFRC, University of Strasbourg , F-67000 Strasbourg, France.
Aurélie
A
Guenet
Molecular Tectonics Laboratory, UMR UDS-CNRS 7140, icFRC, University of Strasbourg , F-67000 Strasbourg, France.
Nathalie
N
Kyritsakas
Molecular Tectonics Laboratory, UMR UDS-CNRS 7140, icFRC, University of Strasbourg , F-67000 Strasbourg, France.
Jean-Marc
JM
Planeix
Molecular Tectonics Laboratory, UMR UDS-CNRS 7140, icFRC, University of Strasbourg , F-67000 Strasbourg, France.
Mir Wais
MW
Hosseini
D002104:Cadmium / Q000737:chemistry*; D018360:Crystallography, X-Ray; D007495:Iridium / Q000737:chemistry*; D049449:Luminescence; D013237:Stereoisomerism
D002104:Cadmium; D007495:Iridium