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Chromium(II) Metal-Organic Polyhedra as Highly Porous Materials

Title
Chromium(II) Metal-Organic Polyhedra as Highly Porous Materials
Authors
Park, JinheePerry, ZacharyChen, Ying-PinBae, JaeyeonZhou, Hong-Cai
DGIST Authors
Park, Jinhee; Bae, Jaeyeon
Issue Date
2017
Citation
ACS Applied Materials and Interfaces, 9(33), 28064-28068
Type
Article
Article Type
Article
Keywords
Air StableBrunauer Emmett Teller Surface AreasCharacterizationChromiumChromium(II) PaddlewheelChromium(II) Porous MaterialsGas AdsorptionGeometryHighly Porous MaterialsMetal Organic Polyhedras (MOPs)Metal Organic PolyhedronMolecular MaterialsOrganometallicsOxygen AdsorptionPaddle WheelsPorous MaterialsRational Methods
ISSN
1944-8244
Abstract
Herein we report for the first time the synthesis of Cr(II)-based metal-organic polyhedra (MOPs) and the characterization of their porosities. Unlike the isostructural Cu(II)- or Mo(II)-based MOPs, Cr(II)-based MOPs show unusually high gas uptakes and surface areas. The combination of comparatively robust dichromium paddlewheel units (Cr2 units), cage symmetries, and packing motifs enable these materials to achieve Brunauer-Emmett-Teller surface areas of up to 1000 m2/g. Reducing the aggregation of the Cr(II)-based MOPs upon activation makes their pores more accessible than their Cu(II) or Mo(II) counterparts. Further comparisons of surface areas on a molar (m2/mol cage) rather than gravimetric (m2/g) basis is proposed as a rational method of comparing members of a family of related molecular materials. © 2017 American Chemical Society.
URI
http://hdl.handle.net/20.500.11750/4437
DOI
10.1021/acsami.7b09339
Publisher
American Chemical Society
Files:
There are no files associated with this item.
Collection:
ETC1. Journal Articles


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