Toward the Self-Assembly of Metal−Organic Nanotubes Using Metal−Metal and π-Stacking Interactions: Bis(pyridylethynyl) Silver(I) Metallo-macrocycles and Coordination Polymers

2011 ◽  
Vol 50 (3) ◽  
pp. 1123-1134 ◽  
Author(s):  
Kelly J. Kilpin ◽  
Martin L. Gower ◽  
Shane G. Telfer ◽  
Geoffrey B. Jameson ◽  
James D. Crowley
Keyword(s):  
Coordination Polymers ◽  
Self Assembly ◽  
The Self ◽  
Stacking Interactions ◽  
Π Stacking ◽  
Metal Metal ◽  
Metal Organic ◽  
Organic Nanotubes

scholarly journals A Nanoporous Supramolecular Metal–Organic Framework Based on a Nucleotide: Interplay of the π···π Interactions Directing Assembly and Geometric Matching of Aromatic Tails

Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4594
Author(s):  
Rosaria Bruno ◽  
Teresa Mastropietro ◽  
Giovanni De Munno ◽  
Donatella Armentano
Keyword(s):  
Self Assembly ◽  
Active Sites ◽  
Metal Organic Framework ◽  
Building Blocks ◽  
The Self ◽  
Stacking Interactions ◽  
Π Stacking ◽  
Geometric Matching ◽  
Metal Organic ◽  
Organic Framework

Self-assembly is the most powerful force for creating ordered supramolecular architectures from simple components under mild conditions. π···π stacking interactions have been widely explored in modern supramolecular chemistry as an attractive reversible noncovalent tool for the nondestructive fabrication of materials for different applications. Here, we report on the self-assembly of cytidine 5’-monophosphate (CMP) nucleotide and copper metal ions for the preparation of a rare nanoporous supramolecular metal-organic framework in water. π···π stacking interactions involving the aromatic groups of the ancillary 2,2’-bipyridine (bipy) ligands drive the self-assemblies of hexameric pseudo-amphiphilic [Cu6(bipy)6(CMP)2(µ-O)Br4]2+ units. Owing to the supramolecular geometric matching between the aromatic tails, a nanoporous crystalline phase with hydrophobic and hydrophilic chiral pores of 1.2 and 0.8 nanometers, respectively, was successfully synthesized. The encoded chiral information, contained on the enantiopure building blocks, is transferred to the final supramolecular structure, assembled in the very unusual topology 8T6. These kinds of materials, owing to chiral channels with chiral active sites from ribose moieties, where the enantioselective recognition can occur, are, in principle, good candidates to carry out efficient separation of enantiomers, better than traditional inorganic and organic porous materials.

scholarly journals Porphyrin-based metal coordination polymers with self-assembly pathway-dependent properties for photodynamic and photothermal therapy

2020 ◽  
Author(s):  
Yuyang Miao ◽  
Shibo Lv ◽  
Daoyuan Zheng ◽  
Yuhan Liu ◽  
Dapeng Liu ◽  
...  
Keyword(s):  
Coordination Polymers ◽  
Self Assembly ◽  
Photothermal Therapy ◽  
The Self ◽  
Metal Coordination ◽  
Great Promise ◽  
Assembly Process ◽  
Assembly Pathway ◽  
Metal Organic ◽  
Metal Coordination Polymers

Abstract Porphyrin-based metal coordination polymers (MCPs) have attracted numerous attention due to their great promise application in phototherapy including photodynamic therapy (PDT) and photothermal therapy (PTT). However, the detailed self-assembly process of porphyrin-based MCPs still remains poorly understood. This work provides a detailed study of the self-assembly process of MCPs constructed by Mn2+ and TCPP (TCPP: 4,4′,4′′,4′′′-(Porphine-5,10,15,20-tetrayl)tetrakis(benzoic acid)) in aqueous solution. Unlike traditional nucleation and growth mechanism, we discover that there is a metastable metal-organic intermediate which is kinetically favored in the self-assembly process. And the metastable metal-organic intermediate nanotape structures could convert into thermodynamically favored nanosheets through disassembling into monomers followed by reassembling process. Moreover, the two structurally different assemblies exhibit distinct photophysical performances. The intermediate Mn-TCPP aggregates show good light-induced singlet oxygen 1O2 generation for PDT while the thermodynamic favored stable Mn-TCPP aggregates exhibit good photothermal conversion ability as photothermal agents (PTAs). This study could facilitate controlling self-assembly pathway to fabricate complex MCPs with desirable applications.

The self-assembly of single-walled metal–organic nanotubes constructed from CuCl2 chains and ditetrazoles

CrystEngComm ◽  
2011 ◽  
Vol 13 (22) ◽  
pp. 6610 ◽  
Author(s):  
Bing Li ◽  
Shun-Wei Chen ◽  
Zheng Chen ◽  
Jie Chen ◽  
Jian-Zhong Guo ◽  
...  
Keyword(s):  
Self Assembly ◽  
The Self ◽  
Metal Organic ◽  
Organic Nanotubes

Influence of Anions on the Self-assembly of Cd(II)-containing Coordination Polymers Based on the Flexible Ligand 2-((1H-1,2,4-Triazol-1-yl)methyl)-1H-benzimidazole

2012 ◽  
Vol 67 (1) ◽  
pp. 29-35
Author(s):  
Guanghua Jin ◽  
Yang Yang ◽  
Xiaoli Zhou ◽  
Xiangru Meng
Keyword(s):  
Solid State ◽  
Hydrogen Bonds ◽  
Coordination Polymers ◽  
Infrared Spectra ◽  
Self Assembly ◽  
Room Temperature ◽  
Luminescent Properties ◽  
The Self ◽  
Stacking Interactions ◽  
Flexible Ligand

Three Cd(II)-containing coordination polymers [CdCl2(tmb)]n (1) and two polymorphs of {[CdI2(tmb)]·DMF}n (2, 3) (tmb = 2-((1H-1,2,4-triazol-1-yl)methyl)-1H-benzimidazole) have been synthesized by the reactions of tmb with the cadmium salts. Polymer 1 exhibits an infinite · · ·Cd- (Cl1)2-Cd-(Cl2)2-Cd· · · chain with μ2Cl bridges, while polymers 2 and 3 are isomers, in which the Cd(II) ions are bridged by the bidentate tmb ligands leading to · · ·Cd-tmb-Cd· · · chains. The polymers form 3-D supramolecular frameworks through hydrogen bonds and π · · ·π stacking interactions. The different structures of polymers 1 - 3 indicate that the anions and the flexibility of the tmb ligand can influence the structures of the coordination polymers. The infrared spectra and luminescent properties of the polymers have been investigated in the solid state at room temperature

The influence of hydrogen bonding and π–π stacking interactions on the self-assembly properties of C3-symmetrical oligo(p-phenylenevinylene) discs

2006 ◽  
Vol 4 (8) ◽  
pp. 1539 ◽  
Author(s):  
Jeroen van Herrikhuyzen ◽  
Pascal Jonkheijm ◽  
Albertus P. H. J. Schenning ◽  
E. W. Meijer
Keyword(s):  
Hydrogen Bonding ◽  
Self Assembly ◽  
The Self ◽  
Stacking Interactions ◽  
Π Stacking

Additive Mediated Syn-Anti Conformational Tuning at Nucleation to Capture Elusive Polymorphs: Remarkable Role of Extended π-Stacking Interactions in Driving the Self-Assembly

2016 ◽  
Vol 16 (4) ◽  
pp. 2416-2428 ◽  
Author(s):  
Rupesh L. Gawade ◽  
Debamitra K. Chakravarty ◽  
Amol Kotmale ◽  
Ekta Sangtani ◽  
Pranaya V. Joshi ◽  
...  
Keyword(s):  
Self Assembly ◽  
The Self ◽  
Stacking Interactions ◽  
Π Stacking

scholarly journals Evidence of π-stacking interactions in the self-assembly of hIAPP22-29

2013 ◽  
Vol 81 (4) ◽  
pp. 690-703 ◽  
Author(s):  
Adam A. Profit ◽  
Valentina Felsen ◽  
Justina Chinwong ◽  
Elmer-Rico E. Mojica ◽  
Ruel Z. B. Desamero
Keyword(s):  
Self Assembly ◽  
The Self ◽  
Stacking Interactions ◽  
Π Stacking

A series of helical coordination polymers based on two racemic bis(pyridylmethylene) propane-1,2-diamine ligands: relationship of conformations, structures and properties

CrystEngComm ◽  
2019 ◽  
Vol 21 (47) ◽  
pp. 7249-7259 ◽  
Author(s):  
Li-Na Zhu ◽  
Zhao-Peng Deng ◽  
Li-Hua Huo ◽  
Shan Gao
Keyword(s):  
Coordination Polymers ◽  
Self Assembly ◽  
The Self ◽  
Metal Salts ◽  
Structures And Properties ◽  
Relationship Of ◽  
Diamine Ligands

The self-assembly of d10 metal salts and two racemic bis(pyridyl) diamine ligands generates ten complexes, showing diverse helical and wavelike chains, (4,4) layers, as well as 3D sqc and uog nets.

scholarly journals Isomeric 4,2′:6′,4″- and 3,2′:6′,3″-Terpyridines with Isomeric 4′-Trifluoromethylphenyl Substituents: Effects on the Assembly of Coordination Polymers with [Cu(hfacac)2] (Hhfacac = Hexafluoropentane-2,4-dione)

Inorganics ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 54
Author(s):  
Giacomo Manfroni ◽  
Simona S. Capomolla ◽  
Alessandro Prescimone ◽  
Edwin C. Constable ◽  
Catherine E. Housecroft
Keyword(s):  
Coordination Polymers ◽  
Metal Binding ◽  
Polymer Chains ◽  
Stacking Interactions ◽  
X Ray Diffraction ◽  
Preparative Scale ◽  
X Ray ◽  
Single Crystal Structures ◽  
Π Stacking ◽  
Packing Interactions

The isomers 4′-(4-(trifluoromethyl)phenyl)-4,2′:6′,4″-terpyridine (1), 4′-(3-(trifluoromethyl)phenyl)-4,2′:6′,4″-terpyridine (2), 4′-(4-(trifluoromethyl)phenyl)-3,2′:6′,3″-terpyridine (3), and 4′-(3-(trifluoromethyl)phenyl)-3,2′:6′,3″-terpyridine (4) have been prepared and characterized. The single crystal structures of 1 and 2 were determined. The 1D-polymers [Cu2(hfacac)4(1)2]n.2nC6H4Cl2 (Hhfacac = 1,1,1,5,5,5-hexafluoropentane-2,4-dione), [Cu(hfacac)2(2)]n.2nC6H5Me, [Cu2(hfacac)4(3)2]n.nC6H4Cl2, [Cu2(hfacac)4(3)2]n.nC6H5Cl, and [Cu(hfacac)2(4)]n.nC6H5Cl have been formed by reactions of 1, 2, 3 and 4 with [Cu(hfacac)2].H2O under conditions of crystal growth by layering and four of these coordination polymers have been formed on a preparative scale. [Cu2(hfacac)4(1)2]n.2nC6H4Cl2 and [Cu(hfacac)2(2)]n.2nC6H5Me are zig-zag chains and the different substitution position of the CF3 group in 1 and 2 does not affect this motif. Packing of the polymer chains is governed mainly by C–F...F–C contacts, and there are no inter-polymer π-stacking interactions. The conformation of the 3,2′:6′,3″-tpy unit in [Cu2(hfacac)4(3)2]n.nC6H4Cl2 and [Cu(hfacac)2(4)]n.nC6H5Cl differs, leading to different structural motifs in the 1D-polymer backbones. In [Cu(hfacac)2(4)]n.nC6H5Cl, the peripheral 3-CF3C6H4 unit is accommodated in a pocket between two {Cu(hfacac)2} units and engages in four C–Hphenyl...F–Chfacac contacts which lock the phenylpyridine unit in a near planar conformation. In [Cu2(hfacac)4(3)2]n.nC6H4Cl2 and [Cu(hfacac)2(4)]n.nC6H5Cl, π-stacking interactions between 4′-trifluoromethylphenyl-3,2′:6′,3″-tpy domains are key packing interactions, and this contrasts with the packing of polymers incorporating 1 and 2. We use powder X-ray diffraction to demonstrate that the assemblies of the coordination polymers are reproducible, and that a switch from a 4,2′:6′,4″- to 3,2′:6′,3″-tpy metal-binding unit is accompanied by a change from dominant C–F...F–C and C–F...H–C contacts to π-stacking of arene domains between ligands 3 or 4.

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