scholarly journals Self-assembly of porphyrin hexamers via bidentate metal–ligand coordination

2018 ◽  
Vol 47 (40) ◽  
pp. 14277-14287 ◽  
Author(s):  
Marga C. Lensen ◽  
Roeland J. M. Nolte ◽  
Alan E. Rowan ◽  
Wim Pyckhout-Hintzen ◽  
Martin C. Feiters ◽  
...  
Keyword(s):  
Self Assembly ◽  
Ligand Coordination ◽  
Metal Ligand

UV/vis, NMR and SANS (right) demonstrate self-assembly of Zn porphyrin hexamers (green) with bidentate DABCO (orange) into cylindrical rods (left).

scholarly journals Self-Assembled Nanomaterials Based on Complementary Sn(IV) and Zn(II)-Porphyrins, and Their Photocatalytic Degradation for Rhodamine B Dye

Molecules ◽  
2021 ◽  
Vol 26 (12) ◽  
pp. 3598
Author(s):  
Nirmal K. Shee ◽  
Hee-Joon Kim
Keyword(s):  
Aqueous Solution ◽  
Visible Light Irradiation ◽  
Rhodamine B ◽  
Self Assembly ◽  
The Self ◽  
Assembly Process ◽  
Absorption Bands ◽  
Ligand Coordination ◽  
Rhodamine B Dye ◽  
Metal Ligand

A series of porphyrin triads (1–6), based on the reaction of trans-dihydroxo-[5,15-bis(3-pyridyl)-10,20-bis(phenyl)porphyrinato]tin(IV) (SnP) with six different phenoxy Zn(II)-porphyrins (ZnLn), was synthesized. The cooperative metal–ligand coordination of 3-pyridyl nitrogens in the SnP with the phenoxy Zn(II)-porphyrins, followed by the self-assembly process, leads to the formation of nanostructures. The red-shifts and remarkable broadening of the absorption bands in the UV–vis spectra for the triads in CHCl3 indicate that nanoaggregates may be produced in the self-assembly process of these triads. The emission intensities of the triads were also significantly reduced due to the aggregation. Microscopic analyses of the nanostructures of the triads reveal differences due to the different substituents on the axial Zn(II)-porphyrin moieties. All these nanomaterials exhibited efficient photocatalytic performances in the degradation of rhodamine B (RhB) dye under visible light irradiation, and the degradation efficiencies of RhB in aqueous solution were observed to be 72~95% within 4 h. In addition, the efficiency of the catalyst was not impaired, showing excellent recyclability even after being applied for the degradation of RhB in up to five cycles.

Template-free multicomponent coordination-driven self-assembly of Pd(ii)/Pt(ii) molecular cages

2014 ◽  
Vol 50 (18) ◽  
pp. 2239-2248 ◽  
Author(s):  
Sandip Mukherjee ◽  
Partha Sarathi Mukherjee
Keyword(s):  
Self Assembly ◽  
Assembly Process ◽  
Molecular Cages ◽  
Recent Developments ◽  
Ligand Coordination ◽  
Template Free ◽  
Metal Ligand

This article summarizes the recent developments in the construction of multicomponent molecular hollowed-out cages through the metal–ligand coordination-driven self-assembly process, with a focus on the decreasing relevance of the use of templates.

Facile synthesis of multicomponent heterobimetallic metallomacrocycles through selective metal–ligand coordination

2019 ◽  
Vol 55 (44) ◽  
pp. 6289-6292 ◽  
Author(s):  
Chang-You Tai ◽  
Jun-Hao Fu ◽  
Yin-Hsuan Lee ◽  
Yun-Jui He ◽  
Shi-Cheng Wang ◽  
...  
Keyword(s):  
Self Assembly ◽  
Facile Synthesis ◽  
One Pot ◽  
Ligand Coordination ◽  
Metal Ligand

Through selective coordination, three heterobimetallic ZnII–PdII/PtII metallomacrocycles have been constructed by either a stepwise or a one-pot self-assembly protocol.

Metal−Ligand Coordination-Induced Self-Assembly of Bolaamphiphiles Bearing Bipyrimidine

Langmuir ◽  
2009 ◽  
Vol 25 (23) ◽  
pp. 13306-13310 ◽  
Author(s):  
Bo Song ◽  
Guanglu Wu ◽  
Zhiqiang Wang ◽  
Xi Zhang ◽  
Mario Smet ◽  
...  
Keyword(s):  
Self Assembly ◽  
Ligand Coordination ◽  
Metal Ligand

Supramolecular squares of dirhodium(ii) tetracarboxylate: combining carboxylate-exchange and metal–ligand coordination for self-assembly

2012 ◽  
Vol 48 (79) ◽  
pp. 9891 ◽  
Author(s):  
Lok H. Tong ◽  
Sarah Clifford ◽  
Antoine Gomila ◽  
Sylvain Duval ◽  
Laure Guénée ◽  
...  
Keyword(s):  
Self Assembly ◽  
Ligand Coordination ◽  
Metal Ligand

Fluorescent Cross-Linked Supramolecular Polymer Constructed by Orthogonal Self-Assembly of Metal-Ligand Coordination and Host-Guest Interaction

2016 ◽  
Vol 22 (20) ◽  
pp. 6881-6890 ◽  
Author(s):  
Xiaomin Qian ◽  
Weitao Gong ◽  
Xiaopeng Li ◽  
Le Fang ◽  
Xiaojun Kuang ◽  
...  
Keyword(s):  
Self Assembly ◽  
Supramolecular Polymer ◽  
Ligand Coordination ◽  
Metal Ligand

scholarly journals Synthesis of Double-Shelled Hollow Inorganic Nanospheres through Block Copolymer-Metal Coordination and Atomic Layer Deposition

Polymers ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 1208 ◽  
Author(s):  
Nina Yan ◽  
Qingbao Guan ◽  
Zhiming Yang ◽  
Min Feng ◽  
Xizhi Jiang ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Block Copolymers ◽  
Atomic Layer Deposition ◽  
Self Assembly ◽  
Lithium Ion ◽  
Polymeric Composite ◽  
Atomic Layer ◽  
Layer Deposition ◽  
Ligand Coordination ◽  
Metal Ligand

Double-shelled hollow (DSH) structures with varied inorganic compositions are confirmed to have improved performances in diverse applications, especially in lithium ion battery. However, it is still of great challenge to obtain these complex nanostructures with traditional hard templates and solution-based route. Here we report an innovative pathway for the preparation of the DSH nanospheres based on block copolymer self-assembly, metal–ligand coordination and atomic layer deposition. Polymeric composite micelles derived from amphiphilic block copolymers and ferric ions were prepared with heating-enabled micellization and metal–ligand coordination. The DSH nanospheres with Fe2O3 stands inner and TiO2 outer the structures can be obtained with atomic layer deposition of a thin layer of TiO2 followed with calcination in air. The coordination was carried out at room temperature and the deposition was performed at the low temperature of 80 °C, thus providing a feasible fabrication strategy for DSH structures without destruction of the templates. The cavity and the outer layer of the structures can also be simply tuned with the utilized block copolymers and the deposition cycles. These DSH inorganic nanospheres are expected to find vital applications in battery, catalysis, sensing and drug delivery, etc.

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