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Anchoring of Diphenylphosphinyl Groups to NH 2 ‐MIL‐53 by Post‐Synthetic Modification
Author(s) -
Castellanos Sonia,
Sai Sankar Gupta Karthick Babu,
Pustovarenko Alexey,
Dikhtiarenko Alla,
Nasalevich Maxim,
Atienzar Pedro,
García Hermenegildo,
Gascon Jorge,
Kapteijn Freek
Publication year - 2015
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201500678
Subject(s) - chemistry , moiety , amide , linker , derivatization , amine gas treating , metal organic framework , surface modification , group (periodic table) , anchoring , characterization (materials science) , functional group , polymer chemistry , combinatorial chemistry , organic chemistry , nanotechnology , polymer , high performance liquid chromatography , materials science , adsorption , computer science , operating system , structural engineering , engineering
Incorporation of new functionalities into metal–organic frameworks (MOFs) by post‐synthetic modification is a most attractive strategy for attaining the desired properties without risking destruction of the crystalline structure chosen for the aimed application. In this work the amine group in NH 2 ‐MIL‐53(Al) was used as anchoring point for the diphenylphosphinyl (Ph 2 PO–) moiety. The success of the derivatization was confirmed by 31 P MAS NMR and DRIFT spectroscopic studies. A newly synthesized reference linker bearing the same phosphinic amide functional group was used to assist in the MOF characterization. The introduction of the bulky diphenylphosphinyl group stabilizes the large‐pore form of the MOF and leads to changes in the optical properties as a consequence of the electronic influence of the PO group. The approach described here is relevant for the preparation of novel phosphorus‐containing MOFs.