Rational Design and Self-Assembly of Molecular Squares Featuring Cp*M (M = Rh, Ir) Vertices Bridged by Phenanthroline-Derived Ligands

The pathogenesis of the group of diseases known collectively as the amyloidoses is characterized by the deposition of insoluble amyloid fibrils. These are straight, unbranching structures about 70–120 å (1 å = 0.1 nm) in diameter and of indeterminate length formed by the self-assembly of a diverse group of normally soluble proteins. Knowledge of the structure of these fibrils is necessary for the understanding of their abnormal assembly and deposition, possibly leading to the rational design of therapeutic agents for their prevention or disaggregation. Structural elucidation is impeded by fibril insolubility and inability to crystallize, thus preventing the use of X-ray crystallography and solution NMR. CD, Fourier-transform infrared spectroscopy and light scattering have been used in the study of the mechanism of fibril formation. This review concentrates on the structural information about the final, mature fibril and in particular the complementary techniques of cryo-electron microscopy, solid-state NMR and X-ray fibre diffraction.

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Heterometallic Molecular Squares and Polymers Based On Self-Assembly Reactions of Multiply Bonded Dirhenium Complexes

European Journal of Inorganic Chemistry ◽

10.1002/ejic.200300268 ◽

2004 ◽

Vol 2004 (2) ◽

pp. 368-375 ◽

Cited By ~ 16

Author(s):

Jitendra K. Bera ◽

John Bacsa ◽

Bradley W. Smucker ◽

Kim R. Dunbar

Keyword(s):

Self Assembly ◽

Dirhenium Complexes ◽

Multiply Bonded ◽

Molecular Squares

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Ag–Au Core–Shell Triangular Nanoprisms for Improving p-g-C3N4 Photocatalytic Hydrogen Production

Nanomaterials ◽

10.3390/nano11123347 ◽

2021 ◽

Vol 11 (12) ◽

pp. 3347

Author(s):

Yali Guo ◽

Anzhou Xu ◽

Juan Hou ◽

Qingcui Liu ◽

Hailong Li ◽

...

Keyword(s):

Hydrogen Production ◽

Self Assembly ◽

Rational Design ◽

Photogenerated Electron ◽

Core Shell ◽

Co Catalyst ◽

Replacement Method ◽

Assembly Method ◽

Free Replacement ◽

Electron Holes

Ag–Au core–shell triangular nanoprisms (Ag@Au TNPs) have aroused extensive research interest in the field of hydrogen evolution reaction (HER) due to their strong plasmon effect and stability. Here, Ag@Au TNPs were fabricated by the galvanic-free replacement method. Then, we loaded them on protonated g-C3N4 nanoprisms (P–CN) by the electrostatic self-assembly method as an efficient plasmonic photocatalyst for HER. The hydrogen production rate of Ag@Au TNPs/P–CN (4.52 mmol/g/h) is 4.1 times higher than that of P–CN (1.11 mmol/g/h) under simulated sunlight irradiation, making it the most competitive material for water splitting. The formed Schottky junction helps to trap the hot electrons generated from Ag@Au TNPs, and the well-preserved tips of the Ag@Au TNPs can effectively generate an electromagnetic field to inhibit the photogenerated electron–holes pairs recombination. This study suggests that the rational design of Ag@Au TNPs by the galvanic-free replacement method is an effective co-catalyst for HER and boosting the additional combination of plasmonic metals and catalyst metals for the enhancement to HER.

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