Controllable gelation of coordination nanocages from the physical interactions among surface grafted cholesteryl groups

Xiao, Haiyan; Zhang, Mingxin; Chen, Jiadong; Lai, Yuyan; Yang, Junsheng; Yin, Jun; Yin, Panchao

doi:10.1039/d2sm00766e

“…SoINs can be chemically integrated into gel networks. [72] Johnson et al prepared a set of hybrid gels, in which the MOP cores are served as junctions for stabilizing the gel networks. [73] SANS well describes the hierarchical structures of these gels (Figure 8a and 8b).…”

Section: Hybrid Nanostructures and Supramolecular Assembliesmentioning

confidence: 99%

Spatiotemporal Studies of Soluble Inorganic Nanostructures with X‐rays and Neutrons

Yin,

Amidani,

Chen

et al. 2023

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This review addresses the use of X‐ray and neutron scattering and X‐ray absorption to describe how inorganic nano‐structured materials assemble, evolve, and function in solution. We first provide an overview of techniques and instrumentation (both large user facilities and benchtop). We review recent studies of soluble inorganic nanostructure assembly, covering the disciplines of materials synthesis, processes in nature, nuclear materials, and the widely applicable fundamental processes of hydrophobic interactions and ion‐pairing. Reviewed studies cover size regimes and length scales ranging from sub‐angstrom (coordination chemistry and ion‐pairing) to several nanometers (molecular clusters; i.e. polyoxometalates, polyoxocations and metal‐organic polyhedra), to meso‐scale (supramolecular assembly processes). Reviewed studies predominantly exploit 1) SAXS/SWAXS/SANS (small and wide angle X‐ray or neutron scattering), 2) PDF (pair distribution function analysis of X‐ray total scattering), and 3) XANES and EXAFS (respectively X‐ray absorption near edge structure and extended X‐ray absorption fine structure). While the scattering techniques provide structural information, X‐ray absorption yields oxidation state, in addition to local coordination. Our goal for this review is to provide information and inspiration for the inorganic/materials science communities that may benefit from elucidating the role of solution speciation in natural and synthetic processes.

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Spatiotemporal Studies of Soluble Inorganic Nanostructures with X‐rays and Neutrons

Yin,

Amidani,

Chen

et al. 2023

Angewandte Chemie

Self Cite

0

View full text Add to dashboard Cite

This review addresses the use of X‐ray and neutron scattering and X‐ray absorption to describe how inorganic nano‐structured materials assemble, evolve, and function in solution. We first provide an overview of techniques and instrumentation (both large user facilities and benchtop). We review recent studies of soluble inorganic nanostructure assembly, covering the disciplines of materials synthesis, processes in nature, nuclear materials, and the widely applicable fundamental processes of hydrophobic interactions and ion‐pairing. Reviewed studies cover size regimes and length scales ranging from sub‐angstrom (coordination chemistry and ion‐pairing) to several nanometers (molecular clusters; i.e. polyoxometalates, polyoxocations and metal‐organic polyhedra), to meso‐scale (supramolecular assembly processes). Reviewed studies predominantly exploit 1) SAXS/SWAXS/SANS (small and wide angle X‐ray or neutron scattering), 2) PDF (pair distribution function analysis of X‐ray total scattering), and 3) XANES and EXAFS (respectively X‐ray absorption near edge structure and extended X‐ray absorption fine structure). While the scattering techniques provide structural information, X‐ray absorption yields oxidation state, in addition to local coordination. Our goal for this review is to provide information and inspiration for the inorganic/materials science communities that may benefit from elucidating the role of solution speciation in natural and synthetic processes.

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Retrospective Analysis of Structure‐Property Relationship of Emergent Metallo‐Supramolecular Polymer Networks

Chang,

Song,

Zhang

et al. 2024

ChemPlusChem

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Metallo‐supramolecular polymer networks (MSPNs) are fabricated from the crosslinking of polymers by discrete supramolecular coordination complexes. Due to the availability of various coordination complexes, e.g., 2D macrocycles and 3D nanocages, the MSPNs have been recently developed with broadly tuned visco‐elasticity and enriched functions inherited from the coordination complexes. The coordination complexes possess enriched topologies and unique structural relaxation dynamics, rendering them the capability to break the traditional tradeoffs of polymer systems for the design of materials with enhanced mechanical performance. The structure‐property relationship studies are critical for the material‐by‐design of MSPNs, while the spatiotemporal investigations are desired for the exploration of dynamics information. The work summarizes recent studies on the unique ligand‐exchange kinetics and the multi‐level structural relaxation dynamics of MSPNs. The MSPNs’ mechanical properties can be quantitatively correlated with the dynamics for understanding the structure‐property relationship. This concept will not only serve to attract more researchers to engage in the study of the structure‐activity relationship of MSPNs but also inspire innovative research findings pertaining to the application of MSPNs.

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Controllable gelation of coordination nanocages from the physical interactions among surface grafted cholesteryl groups

Abstract: Coordination nanocages (CNCs) incorporated gels have attracted enormous attention for the effective integration of micro-porosity, mechanical flexibility and processability; however, the understanding of their microscopic structure-property relationships remains unclear. Herein,...

Cited by 5 publications

References 41 publications

Spatiotemporal Studies of Soluble Inorganic Nanostructures with X‐rays and Neutrons

Spatiotemporal Studies of Soluble Inorganic Nanostructures with X‐rays and Neutrons

Spatiotemporal Studies of Soluble Inorganic Nanostructures with X‐rays and Neutrons

Retrospective Analysis of Structure‐Property Relationship of Emergent Metallo‐Supramolecular Polymer Networks

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