Polar alcohol guest molecules regulate the stacking modes of 2-D MOF nanosheets

Cheng, Yue; Tang, Wen-Qi; Geng, Lu-Ting; Xu, Ming; Zhu, Jian-Ping; Meng, Sha-Sha; Gu, Zhi-Yuan

doi:10.1039/d3sc06844g

Chem. Sci.

2024

DOI: 10.1039/d3sc06844g

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Polar alcohol guest molecules regulate the stacking modes of 2-D MOF nanosheets

Yue Cheng,

Wen-Qi Tang,

Lu-Ting Geng

et al.

Abstract: The modulation of two-dimensional metal–organic framework (2-D MOF) nanosheets stacking is an effective means to improve properties and promote the application of nanosheets in various fields. Here, we employed a...

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Diradicals as Topological Charge Carriers in Metal–Organic Toy Model Pt₃(HIB)₂

Goesten,

Schoop

2024

J. Am. Chem. Soc.

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We explore the eclipsed stacking of a metal−organic Kagome lattice containing heavy-metal nodes. Our model is Pt 3 (HIB) 2 , a hypothetical but viable member of a well-known family of hexaaminobenzene based metal−organic frameworks (MOFs). Applying space group theory, it is shown how molecular diradicals, brought into play by a noninnocent ligand, become topologically nontrivial bands when moving in a periodic potential. Three factors are required to enable this: (1) eclipsed stacking, which shifts the Fermi level near a symmetry-protected band crossing (2) the emergence of an electride-like band that renders the topological 2 invariant equal to 1, thus nontrivial, and (3) Pt-induced spin−orbit coupling, to turn the crossing into a bulk band gap. The electride band, with its unforeseen role, bears kinship to the interlayer band in hexagonal superconductors. It places its charge density in the voids of the crystal, rather than around the atomic nuclei, and we name it a "pore band". While the synthesis of truly conductive MOFs has proven challenging, the analysis shows that intrinsically nonlocal physics may emerge from tunable molecular building blocks. With the richness of redox-active MOF chemistry, this offers a pathway to tailored topological electronics.

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Diradicals as Topological Charge Carriers in Metal–Organic Toy Model Pt₃(HIB)₂

Goesten,

Schoop

2024

J. Am. Chem. Soc.

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IUPAC’s 2024 Top Ten Emerging Technologies in Chemistry

Gomollón-Bel

2024

Chemistry International

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In 2019, the IUPAC started a quest to select the most interesting emerging technologies in the chemical sciences [1]. Now, this established initiative continues year after year—adding ideas to a list of innovations with an enormous potential to transform fields as diverse as materials science, energy, healthcare, agriculture and computing, among others [2]. Overall, the IUPAC “Top Ten Emerging Technologies in Chemistry” align with the United Nations’ Sustainable Development Goals, in a quest to secure a sustainable future and pave the way to a circular economy [3]. This new list delves into new materials, unexplored physical phenomena, and creative solutions to global challenges, including prevalent diseases and the still ongoing energy and fuel crisis. As in the first “Top Ten” paper, the technologies hover over a broad range of readiness—from laboratory discoveries to commercial realities, hence “emerging.” But all of them, carefully curated by a panel of experts nominated by IUPAC, are equally exciting. Read on.

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Polar alcohol guest molecules regulate the stacking modes of 2-D MOF nanosheets

Abstract: The modulation of two-dimensional metal–organic framework (2-D MOF) nanosheets stacking is an effective means to improve properties and promote the application of nanosheets in various fields. Here, we employed a...

Cited by 2 publications

References 41 publications

Diradicals as Topological Charge Carriers in Metal–Organic Toy Model Pt₃(HIB)₂

Diradicals as Topological Charge Carriers in Metal–Organic Toy Model Pt₃(HIB)₂

IUPAC’s 2024 Top Ten Emerging Technologies in Chemistry

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Polar alcohol guest molecules regulate the stacking modes of 2-D MOF nanosheets

Abstract: The modulation of two-dimensional metal–organic framework (2-D MOF) nanosheets stacking is an effective means to improve properties and promote the application of nanosheets in various fields. Here, we employed a...

Cited by 2 publications

References 41 publications

Diradicals as Topological Charge Carriers in Metal–Organic Toy Model Pt3(HIB)2

Diradicals as Topological Charge Carriers in Metal–Organic Toy Model Pt3(HIB)2

IUPAC’s 2024 Top Ten Emerging Technologies in Chemistry

Contact Info

Product

Resources

About

Diradicals as Topological Charge Carriers in Metal–Organic Toy Model Pt₃(HIB)₂

Diradicals as Topological Charge Carriers in Metal–Organic Toy Model Pt₃(HIB)₂