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UID:20250930T020306EDT-8341pKVfWh@132.216.98.100
DTSTAMP:20250930T060306Z
DESCRIPTION:Natural and engineered systems often use functional or structur
 al gradients to control the directional transport of matter.  Gradients wi
 thin MOFs would allow for selective and directional transport of specific 
 analytes to specific regions of a MOF crystal.  A ligand exchange process 
 has been implemented to systematically tune the pore space within a class 
 of 3-D mesoporous metal-organic frameworks (MOFs).  The mechanism of ligan
 d exchange is investigated and revealed to proceed from the crystal periph
 ery to the crystal core within single MOF crystals.  Upon halting the liga
 nd exchange reaction at different time points\, new single crystalline mes
 oporous MOFs bearing a porosity gradient have been realized\, in which the
  pore dimensions gradually decrease when proceeding from the crystal perip
 hery to the core. These methods point toward the construction of functiona
 lity gradients that can be used to shuttle molecules to specific locations
  within the crystal.\n
DTSTART:20170516T170000Z
DTEND:20170516T170000Z
LOCATION:Room 10\, Maass Chemistry Building\, CA\, QC\, Montreal\, H3A 0B8\
 , 801 rue Sherbrooke Ouest
SUMMARY:Nathaniel Rosi - Ligand exchange phenomena and the realization of g
 radients in metal-organic frameworks
URL:/chemistry/channels/event/nathaniel-rosi-ligand-ex
 change-phenomena-and-realization-gradients-metal-organic-frameworks-267624
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