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Chromium(II) Metal-Organic Polyhedra as Highly Porous Materials
- Source :
- ACS applied materialsinterfaces. 9(33)
- Publication Year :
- 2017
-
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.
- Subjects :
- Materials science
010405 organic chemistry
Inorganic chemistry
chemistry.chemical_element
010402 general chemistry
01 natural sciences
0104 chemical sciences
MOPS
Metal
Polyhedron
chemistry.chemical_compound
Chromium
Crystallography
chemistry
visual_art
Rational method
Highly porous
visual_art.visual_art_medium
Gravimetric analysis
General Materials Science
Isostructural
Subjects
Details
- ISSN :
- 19448252
- Volume :
- 9
- Issue :
- 33
- Database :
- OpenAIRE
- Journal :
- ACS applied materialsinterfaces
- Accession number :
- edsair.doi.dedup.....7cdad09e4bfca4503eb46498ec5a0257