Linear vs Exponential Formation of Molecular-Based Assemblies

Choudhury, Joyanta; Kaminker, Revital; Motiei, Leila; Ruiter, Graham de; Morozov, Michael; Lupo, Fabio; Gulino, Antonino; Boom, Milko E. van der

doi:10.1021/ja104203v

Cited by 56 publications

(99 citation statements)

References 24 publications

(14 reference statements)

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“…[71] The two Gaussians at 398.7 and 400.0 eV in the 1:3i ntensityr atio account for the porphyrin nitrogen atoms, and are in agreement with many other previously reported similar data. Sincet he band at 402.4 eV is due to quaternized nitrogen (N + ), [72][73][74][75] this fact implies that the porphyrin grafts to the surface using two pyridine groups. Sincet he band at 402.4 eV is due to quaternized nitrogen (N + ), [72][73][74][75] this fact implies that the porphyrin grafts to the surface using two pyridine groups.…”

Section: Resultsmentioning

confidence: 99%

Conjugated Gold–Porphyrin Monolayers Assembled on Inorganic Surfaces

Contino

Maccarrone

Fragalà

et al. 2017

Chemistry A European J

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Gold nanoparticles show important properties owing to their electronic structures. A limitation of some gold nanoparticles is that they either show surface plasmons or luminescence. The increase in size of the gold nanoparticles, and the appearance of the surface plasmons may result in the disappearance of luminescence. The aim of our study is the nanoscale assembly of Au nanoparticles on a monolayer of porphyrin molecules anchored to functionalized inorganic surfaces. This functional architecture not only exhibits a strong surface plasmon due to the gold nanoparticles, but also a strong luminescence signal from the porphyrin molecules. Finally we observed a long-range order in the Au nanoparticles conjugated to the porphyrin monolayer.

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Section: Resultsmentioning

confidence: 99%

Conjugated Gold–Porphyrin Monolayers Assembled on Inorganic Surfaces

Contino

Maccarrone

Fragalà

et al. 2017

Chemistry A European J

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“…70 However, branched molecular wires are rarely precisely fabricated, 71,72 and such investigations therefore have yet to be addressed. As demonstrated in Fig.…”

Section: Elucidation Of the Long-range Electron Transport Phenomenonmentioning

confidence: 99%

π-Conjugated bis(terpyridine)metal complex molecular wires

et al. 2015

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Bottom-up approaches have gained significant attention recently for the creation of nano-sized, ordered functional structures and materials. Stepwise coordination techniques, in which ligand molecules and metal sources are reacted alternatively, offer several advantages. Coordination bonds are stable, reversible, and self-assembling, and the resultant metal complex motifs may contain functionalities unique to their own characteristics. This review focuses on metal complex wire systems, specifically the bottom-up fabrication of linear and branched bis(terpyridine)metal complex wires on electrode surfaces. This system possesses distinct and characteristic electronic functionalities, intra-wire redox conduction and excellent long-range electron transport ability. This series of comprehensive studies exploited the customizability of bis(terpyridine)metal complex wires, including examining the influence of building blocks. In addition, simple yet effective electron transfer models were established for redox conduction and long-range electron transport. A fabrication technique for an ultra-long bis(terpyridine)metal complex wire is also described, along with its properties and functionalities.

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“…The MAs were obtained by an iterative solution‐deposition process . ITO‐coated glass substrates were initially functionalized with a covalently bound monolayer of 1‐Ru , forming [1‐Ru] 1 .…”

Section: Resultsmentioning

confidence: 99%

“…ITO‐coated glass substrates were initially functionalized with a covalently bound monolayer of 1‐Ru , forming [1‐Ru] 1 . [1‐Ru] 2‐10 are formed by alternatively immersing [1‐Ru] 1 in common organic solvents containing a palladium salt, PdCl 2 (PhCN) 2 , followed by immersion in a solution of the 1‐Ru complex, resulted in a coordination network on the surface –. The last deposition step was 1‐Ru .…”

Section: Resultsmentioning

confidence: 99%

Nanoscale Spatial Separation to Regulate Gold Microstructures Formation

et al. 2019

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Flower‐like gold microstructures are directly formed from solution on the surface of nanometric molecular assemblies. We show that the size and morphology of these microstructures are controlled by the nanoscale thickness of the assemblies, which consist of ruthenium polypyridyl complexes crosslinked with a palladium salt. Gold electrodeposition on these ultrathin (3–15 nm) molecular assemblies, bound to a conductive substrate, follows an instantaneous nucleation regime that results in multiple small clusters. On thicker assemblies (15–55 nm) a progressive nucleation mode is dominant, which leads to the formation of larger (up to 50 times) and highly branched microstructures. The ability to control the characteristics of these microstructures by nanoscale assemblies is based on the mechanistic insights of the nucleation and growth processes obtained by electrochemical means and scanning electron microscopy (SEM) measurement.

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Linear vs Exponential Formation of Molecular-Based Assemblies

Cited by 56 publications

References 24 publications

Conjugated Gold–Porphyrin Monolayers Assembled on Inorganic Surfaces

Conjugated Gold–Porphyrin Monolayers Assembled on Inorganic Surfaces

π-Conjugated bis(terpyridine)metal complex molecular wires

Nanoscale Spatial Separation to Regulate Gold Microstructures Formation

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