Τομέας ΙΙΙ [Ανόργανη Χημεία – Ανόργανη Χημική Τεχνολογία – Περιβαλλοντική Χημεία]
Library of the School of Science

2012-07-10

2012

Φιδέλλη Αθηνά

Παπαευσταθίου Ιωάν. Επίκ. Καθηγ. (Επιβλέπων), Κυρίτσης Παναγ. Επικ. Καθηγ., Παρασκευοπούλου Πατρίνα Λέκτορας

Πολυμερή ένταξης του Cu(II) που βασίζονται στο Τριμεσικό Οξύ και στη Δι-2- Πυρίδυλο κετόνη

Greek

Metal-organic frameworks (MOFs) are crystalline inorganic–organic hybrid
materials that consist of metal ions or clusters and organic molecules
connected in space to produce an infinite one-, two-, or three-dimensional
frameworks. MOFs, have emerged as an extensive class of crystalline materials
with ultrahigh porosity (up to 90%) and enormous internal surface areas,
extending beyond 6000 m2/g. The modular nature of MOFs, specifically, the
ability to modify the organic and/or inorganic components, offers a ready means
to modify and control properties of such materials (e.g. inclusion). The
synthesis of MOFs is achieved under mild conditions (e.g. solution chemistry,
solvothermal synthesis) and is in general high yielding and scalable, features
that make MOFs attractive targets for technological applications.
The majority of MOFs are built up from metal ions that serve as nodes and
organic ligands that serve as spacers. Consequently, the chemical functionality
that defines the walls of such hosts is largely based on the chemical
composition of the organic spacer. In effect, functionalization of the
interiors of the cavities of a given MOF will require chemical modification of
the organic ligand, which involves elaborate covalent organic synthesis and may
result in frameworks with different topologies and properties. Having in mind
to synthesize new functional MOFs, prone to modifications, we develop new
synthetic strategies. In this work we introduce a synthetic method which is
based on the combination of more than one organic ligands, in order to
construct new MOFs. This synthetic strategy is based on the use of di-2-pyridyl
ketone, a ligand with no capability to bridge the nodes (polymerize) and
trimesic acid, which has the tendency to bridge the metal ions or complexes.
Following this strategy, we synthesized a one-dimensional coordination polymer
and a three-dimensional coordination polymer that were characterized by
single-crystal x-ray crystallography and spectroscopic techniques while the
magnetic properties of the 3D polymer were studied.

Molecular materials, Coordination polymers, Metal clusters, Metal-organic frameworks, Magnetic properties

Yes

1-10

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216

149

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https://pergamos.lib.uoa.gr/uoa/dl/object/1319476