Abstract

We report the direct observation of dioxygen molecules physisorbed in the nanochannels of a microporous copper coordination polymer by the MEM (maximum entropy method)/Rietveld method, using in situ high-resolution synchrotron x-ray powder diffraction measurements. The obtained MEM electron density revealed that van der Waals dimers of physisorbed O 2 locate in the middle of nanochannels and form a one-dimensional ladder structure aligned to the host channel structure. The observed O–O stretching Raman band and magnetic susceptibilities are characteristic of the confined O 2 molecules in one-dimensional nanochannels of CPL-1 (coordination polymer 1 with pillared layer structure).

Keywords

Microporous materialvan der Waals forceMoleculeCoordination polymerRietveld refinementSynchrotronRaman spectroscopyCopperPolymerCrystallographyMetal-organic frameworkMetalMaterials scienceChemistryChemical physicsCrystal structureAdsorptionPhysical chemistry

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Publication Info

Year
2002
Type
article
Volume
298
Issue
5602
Pages
2358-2361
Citations
617
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Cite This

Ryo Kitaura, Susumu Kitagawa, Yoshiki Kubota et al. (2002). Formation of a One-Dimensional Array of Oxygen in a Microporous Metal-Organic Solid. Science , 298 (5602) , 2358-2361. https://doi.org/10.1126/science.1078481

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DOI
10.1126/science.1078481