Structural features of some Metal Organic Frameworks (MOFs) with Aromatic polycarboxylates and bis-(pyridylmethyl)- piperazine (bpmp) or bis-(pyridylformyl)- piperazine (bpfp) ligands

  • Rishi Kant et al.

Abstract

Metal-organic framework (MOF), a subclass of coordination polymer has a structure based on
bidentate or multidentate organic, inorganic and organometallic ligands lying between the metal
atoms or ions. The use of organic linkers such as carboxylates, cyanides, amines, imidazole, etc.
between metal centres produces hybrid inorganic-organic material which often lead to the porous
framework. Metal linker combination plays an important role in deciding the porosity, structure
variability, size and flexibility of coordination polymers. Aromatic polycarboxylates has remained a
popular choice for MOFs due to the versatile binding mode of the carboxylate group in monodentate,
bidentate and in bridging mode. Spatial positioning of this group through around the benzene ring
along with methylene spacers create possibilities of further modification with different topological
features. The bis-(pyridylmethyl)-piperazine (bpmp) or bis-(pyridylformyl)-piperazine (bpfp) with
long stretching binding arms also facilitates in holding the different 1D or 2D network structures into
further 2D or 3D networks respectively.These coordination polymers find application in various fields
including, gas sensing and capture, photoluminescence, explosive sensing. This mini review tries to
capture the current picture of the rapidly growing field of MOF chemistry derived from Aromatic
polycarboxylates and bpmp or bpfp ligands, and their structural analysis.

Published
2019-12-24
Section
Articles