Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Protecting group and switchable pore-discriminating adsorption properties of a hydrophilic-hydrophobic metal-organic framework
AU - Mohideen, M. Infas H.
AU - Xiao, Bo
AU - Wheatley, Paul S.
AU - McKinlay, Alistair C.
AU - Li, Yang
AU - Slawin, Alexandra M. Z.
AU - Aldous, David W.
AU - Cessford, Naomi F.
AU - Dueren, Tina
AU - Zhao, Xuebo
AU - Gill, Rachel
AU - Thomas, K. Mark
AU - Griffin, John M.
AU - Ashbrook, Sharon E.
AU - Morris, Russell E.
PY - 2011/4
Y1 - 2011/4
N2 - Formed by linking metals or metal clusters through organic linkers, metal-organic frameworks are a class of solids with structural and chemical properties that mark them out as candidates for many emerging gas storage, separation, catalysis and biomedical applications. Important features of these materials include their high porosity and their flexibility in response to chemical or physical stimuli. Here, a copper-based metal-organic framework has been prepared in which the starting linker (benzene-1,3,5-tricarboxylic acid) undergoes selective monoesterification during synthesis to produce a solid with two different channel systems, lined by hydrophilic and hydrophobic surfaces, respectively. The material reacts differently to gases or vapours of dissimilar chemistry, some stimulating subtle framework flexibility or showing kinetic adsorption effects. Adsorption can be switched between the two channels by judicious choice of the conditions. The monoesterified linker is recoverable in quantitative yield, demonstrating possible uses of metal-organic frameworks in molecular synthetic chemistry as 'protecting groups' to accomplish selective transformations that are difficult using standard chemistry techniques.
AB - Formed by linking metals or metal clusters through organic linkers, metal-organic frameworks are a class of solids with structural and chemical properties that mark them out as candidates for many emerging gas storage, separation, catalysis and biomedical applications. Important features of these materials include their high porosity and their flexibility in response to chemical or physical stimuli. Here, a copper-based metal-organic framework has been prepared in which the starting linker (benzene-1,3,5-tricarboxylic acid) undergoes selective monoesterification during synthesis to produce a solid with two different channel systems, lined by hydrophilic and hydrophobic surfaces, respectively. The material reacts differently to gases or vapours of dissimilar chemistry, some stimulating subtle framework flexibility or showing kinetic adsorption effects. Adsorption can be switched between the two channels by judicious choice of the conditions. The monoesterified linker is recoverable in quantitative yield, demonstrating possible uses of metal-organic frameworks in molecular synthetic chemistry as 'protecting groups' to accomplish selective transformations that are difficult using standard chemistry techniques.
KW - POROUS COORDINATION-POLYMER
KW - CARBON MOLECULAR-SIEVES
KW - NITRIC-OXIDE
KW - GASES
KW - STORAGE
KW - VAPORS
KW - NI-2(4,4'-BIPYRIDINE)(3)(NO3)(4)
KW - SELECTIVITY
KW - SEPARATION
KW - CHEMISTRY
U2 - 10.1038/NCHEM.1003
DO - 10.1038/NCHEM.1003
M3 - Journal article
VL - 3
SP - 304
EP - 310
JO - Nature Chemistry
JF - Nature Chemistry
SN - 1755-4330
IS - 4
ER -