Photomechanical properties in metal–organic crystals

Khan, Samim; Mir, Mohammad Hedayetullah

doi:10.1039/d4cc02655a

Chem. Commun.

2024

DOI: 10.1039/d4cc02655a

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Photomechanical properties in metal–organic crystals

Samim Khan,

Mohammad Hedayetullah Mir

Abstract: This feature article aims to provide an authoritative view to understand the chemical aspects of the photosalient behavior of metal–organic crystals for further progress in this field of photoactuating smart materials.

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Cited by 5 publications

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Simultaneous Cycloadditions in the Solid State via Supramolecular Assembly

Juneja,

George,

Hutchins

2024

Angewandte Chemie

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Chemical reactions conducted in the solid phase (specifically, crystalline) are much less numerous than solution reactions, primarily due to reduced motion, flexibility, and reactivity. The main advantage of crystalline‐state transformations is that reactant molecules can be designed to self‐assemble into specific spatial arrangements, often leading to high control over product regiochemistry and/or stereochemistry. In crystalline‐phase transformations, typically only one type of reaction occurs, and a sacrificial template molecule is frequently used to facilitate self‐assembly, similar to a catalyst or enzyme. Here, we demonstrate the first system designed to undergo two chemically unique and orthogonal cycloaddition reactions simultaneously within a single crystalline solid. Well‐controlled supramolecular self‐assembly of two molecules containing different reactive moieties affords orthogonal reactivity without use of a sacrificial template. Using only UV light, the simultaneous [2+2] and [4+4] cycloadditions are achieved regiospecifically, stereospecifically, and products are obtained in high yield, whereas a simultaneous solution‐state reaction affords a mixture of isomers in low yield. Application of dually‐reactive systems toward (supra)molecular solar thermal storage materials is also discussed. This work demonstrates fundamental chemical approaches for orthogonal reactivity in the crystalline state and highlights the complexity and reversibility that can be achieved with supramolecular design.

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Simultaneous Cycloadditions in the Solid State via Supramolecular Assembly

Juneja,

George,

Hutchins

2024

Angewandte Chemie

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Simultaneous Cycloadditions in the Solid State via Supramolecular Assembly

Juneja,

George,

Hutchins

2024

Angew Chem Int Ed

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Photomechanical responses of coordination polymers regulated by precise organization of the photoactive centers

Wu,

Qin,

Dong

et al. 2024

Chem. Commun.

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Photomechanical properties in metal–organic crystals

Abstract: This feature article aims to provide an authoritative view to understand the chemical aspects of the photosalient behavior of metal–organic crystals for further progress in this field of photoactuating smart materials.

Cited by 5 publications

References 81 publications

Simultaneous Cycloadditions in the Solid State via Supramolecular Assembly

Simultaneous Cycloadditions in the Solid State via Supramolecular Assembly

Simultaneous Cycloadditions in the Solid State via Supramolecular Assembly

Photomechanical responses of coordination polymers regulated by precise organization of the photoactive centers

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