Syntheses, Spectroscopic Properties, and Cu(I) Complexes of All Possible Symmetric Bi-1,10-phenanthrolines

Toyota, Shinji; Goto, Akito; Kaneko, Keiko; Umetani, Takumi

doi:10.3987/com-04-10273

HETEROCYCLES

2005

DOI: 10.3987/com-04-10273

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Syntheses, Spectroscopic Properties, and Cu(I) Complexes of All Possible Symmetric Bi-1,10-phenanthrolines

Shinji Toyota¹,

Akito Goto²,

Keiko Kaneko³

et al.

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Cited by 5 publications

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“…Bis(1,10-phenanthroline)s with a different spacer and/or substituents L1-4 (Scheme 1) were synthesized according to the literature. [19][20][21][22][23] Ni(II)-based metallo-supramolecular polymers (polyNiL1-4, Scheme 1) were obtained by 1 : 1 complexation of Ni(II) ions with L1-4 as follows. The ligand (L1-4) (0.026 mmol) was dissolved in 5 mL of CH 2 Cl 2 under a nitrogen atmosphere.…”

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Ionic conductivity of Ni(ii)-based metallo-supramolecular polymers: effects of ligand modification

et al. 2013

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mentioning

confidence: 99%

Ionic conductivity of Ni(ii)-based metallo-supramolecular polymers: effects of ligand modification

et al. 2013

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Metal ion recognition in aqueous solution by highly preorganized non-macrocyclic ligands

Hancock

Melton

Harrington

et al. 2007

Coordination Chemistry Reviews

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Efficient Access of Phenyl-Spaced 5,5′-Bridged Dinuclear Ruthenium Metal Complexes and the Effect of Dynamic Ligand Exchange on Catalysis

et al. 2022

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Herein, we present the synthesis, characterization, and light-driven hydrogen evolution activity of two dinuclear Ru-Pt complexes, Rup(ph)pPtX2 (X = Cl, I), comprising a new phenyl-spaced 5,5′-bis-phenanthroline p(ph)p bridging ligand. The two complexes only differ in the nature of the halide ligand at the catalytic center. Structural, photophysical, electrochemical, as well as photochemical characterization techniques revealed that the variations of single components of the intramolecular system provide a strong influence on the stability even in non-catalytic conditions. Interestingly, varying electron density at the catalytic center, mainly influenced by the coordinating halide at the catalytic center, as shown by 195Pt NMR spectroscopy, strongly influences the photocatalytic efficiency. Furthermore, intensive investigations on the potential catalytic mechanism showed that small structural variations (e.g., halide exchange) not only affect catalytic activity but can also switch the main catalytic mechanism from an initially molecular one to a fully heterogeneous, colloid-driven hydrogen evolution.

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Syntheses, Spectroscopic Properties, and Cu(I) Complexes of All Possible Symmetric Bi-1,10-phenanthrolines

Cited by 5 publications

References 38 publications

Ionic conductivity of Ni(ii)-based metallo-supramolecular polymers: effects of ligand modification

Ionic conductivity of Ni(ii)-based metallo-supramolecular polymers: effects of ligand modification

Metal ion recognition in aqueous solution by highly preorganized non-macrocyclic ligands

Efficient Access of Phenyl-Spaced 5,5′-Bridged Dinuclear Ruthenium Metal Complexes and the Effect of Dynamic Ligand Exchange on Catalysis

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