Premium
Complete Transmetalation in a Metal–Organic Framework by Metal Ion Metathesis in a Single Crystal for Selective Sensing of Phosphate Ions in Aqueous Media
Author(s) -
Asha K S,
Bhattacharjee Rameswar,
Mandal Sukhendu
Publication year - 2016
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201606185
Subject(s) - transmetalation , metal organic framework , aqueous solution , chemistry , metathesis , inorganic chemistry , metal ions in aqueous solution , ion exchange , metal , dissociation (chemistry) , single crystal , photochemistry , ion , photoluminescence , materials science , combinatorial chemistry , adsorption , crystallography , organic chemistry , catalysis , polymer , optoelectronics , polymerization
A complete transmetalation has been achieved on a barium metal–organic framework (MOF), leading to the isolation of a new Tb‐MOF in a single‐crystal (SC) to single‐crystal (SC) fashion. It leads to the transformation of an anionic framework with cations in the pore to one that is neutral. The mechanistic studies proposed a core–shell metal exchange through dissociation of metal–ligand bonds. This Tb‐MOF exhibits enhanced photoluminescence and acts as a selective sensor for phosphate anion in aqueous medium. Thus, this work not only provides a method to functionalize a MOF that can have potential application in sensing but also elucidates the formation mechanism of the resulting MOF.