Solid-state transformation in porous metal-organic frameworks based on polymorphic-pillared net structure

Generation of tubular shaped MOFs

Somboon Chaemchuen, Kui Zhou, Mekhman S. Yusubov, Pavel S. Postnikov, Nikom Klomkliang, Francis Verpoort

Research output: Contribution to journalArticle

Abstract

A first time report on a solid-state polymorphic transformation of MOF materials [Zn2(bdc)2(dabco)]n (ZnBD) and [Co2(bdc)2(dabco)]n (CoBD) from a pillared kagomé-lattice form (ZnBDkgm or CoBDkgm) to a pillared square-lattice form (ZnBDsql or CoBDsql) at ambient condition is given. Several solvents were applied as a guest-driven molecule to trigger the solid-to-solid transformation while only methanol demonstrated to be able to perform this transformation. The methanol-driven solid-state transformation behavior was observed by using powder X-ray diffraction. The morphology investigated that the rod-like Kagomé form rapidly transformed into a tubular square lattice upon addition of methanol at room temperature. The characteristic porosity reconfirmed the transformation was complete. A transformation mechanism of disconnection-deformation-rebuilding was elucidated based on the experiment.

Original languageEnglish
Pages (from-to)99-104
Number of pages6
JournalMicroporous and Mesoporous Materials
Volume278
DOIs
Publication statusPublished - 1 Apr 2019

Fingerprint

Metals
solid state
Methanol
metals
methyl alcohol
X ray powder diffraction
Porosity
Molecules
rods
actuators
porosity
Experiments
room temperature
diffraction
Temperature
molecules
x rays

Keywords

  • Kagomé
  • Metal-organic frameworks
  • Pillared MOFs
  • Polymorph
  • Solid-state transformation

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials

Cite this

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title = "Solid-state transformation in porous metal-organic frameworks based on polymorphic-pillared net structure: Generation of tubular shaped MOFs",
abstract = "A first time report on a solid-state polymorphic transformation of MOF materials [Zn2(bdc)2(dabco)]n (ZnBD) and [Co2(bdc)2(dabco)]n (CoBD) from a pillared kagom{\'e}-lattice form (ZnBDkgm or CoBDkgm) to a pillared square-lattice form (ZnBDsql or CoBDsql) at ambient condition is given. Several solvents were applied as a guest-driven molecule to trigger the solid-to-solid transformation while only methanol demonstrated to be able to perform this transformation. The methanol-driven solid-state transformation behavior was observed by using powder X-ray diffraction. The morphology investigated that the rod-like Kagom{\'e} form rapidly transformed into a tubular square lattice upon addition of methanol at room temperature. The characteristic porosity reconfirmed the transformation was complete. A transformation mechanism of disconnection-deformation-rebuilding was elucidated based on the experiment.",
keywords = "Kagom{\'e}, Metal-organic frameworks, Pillared MOFs, Polymorph, Solid-state transformation",
author = "Somboon Chaemchuen and Kui Zhou and Yusubov, {Mekhman S.} and Postnikov, {Pavel S.} and Nikom Klomkliang and Francis Verpoort",
year = "2019",
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AU - Chaemchuen, Somboon

AU - Zhou, Kui

AU - Yusubov, Mekhman S.

AU - Postnikov, Pavel S.

AU - Klomkliang, Nikom

AU - Verpoort, Francis

PY - 2019/4/1

Y1 - 2019/4/1

N2 - A first time report on a solid-state polymorphic transformation of MOF materials [Zn2(bdc)2(dabco)]n (ZnBD) and [Co2(bdc)2(dabco)]n (CoBD) from a pillared kagomé-lattice form (ZnBDkgm or CoBDkgm) to a pillared square-lattice form (ZnBDsql or CoBDsql) at ambient condition is given. Several solvents were applied as a guest-driven molecule to trigger the solid-to-solid transformation while only methanol demonstrated to be able to perform this transformation. The methanol-driven solid-state transformation behavior was observed by using powder X-ray diffraction. The morphology investigated that the rod-like Kagomé form rapidly transformed into a tubular square lattice upon addition of methanol at room temperature. The characteristic porosity reconfirmed the transformation was complete. A transformation mechanism of disconnection-deformation-rebuilding was elucidated based on the experiment.

AB - A first time report on a solid-state polymorphic transformation of MOF materials [Zn2(bdc)2(dabco)]n (ZnBD) and [Co2(bdc)2(dabco)]n (CoBD) from a pillared kagomé-lattice form (ZnBDkgm or CoBDkgm) to a pillared square-lattice form (ZnBDsql or CoBDsql) at ambient condition is given. Several solvents were applied as a guest-driven molecule to trigger the solid-to-solid transformation while only methanol demonstrated to be able to perform this transformation. The methanol-driven solid-state transformation behavior was observed by using powder X-ray diffraction. The morphology investigated that the rod-like Kagomé form rapidly transformed into a tubular square lattice upon addition of methanol at room temperature. The characteristic porosity reconfirmed the transformation was complete. A transformation mechanism of disconnection-deformation-rebuilding was elucidated based on the experiment.

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KW - Polymorph

KW - Solid-state transformation

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