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Updated: Mar 2, 2026

Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
Published on: February 7, 2017
Selective Separation of Aliphatic Nitriles by Employing a Two-Dimensional Interdigitated Coordination Polymer
Subhradeep Mistry1, Raghunandan Hota1, Srinivasan Natarajan1
1Framework Solids Laboratory, Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore, 560012, India.
Abstract:
A room-temperature slow diffusion reaction of the metal nitrates [M=ZnII and CoII ] with 5-azido isophthalic acid (AIPA) and 1,4-bis(4-pyridyl)-2,3-diaza-1,3-butadiene (BPDB) resulted in a new two-dimensional interdigitated coordination polymer, [M(C8 H3 N3 O4 )(C12 H10 N4 )]⋅DMF [DMF=dimethyl formamide (C3 H7 NO)]. The non-bonded DMF molecules were found to exchange through a single-crystal to single-crystal (SCSC) fashion with many aliphatic nitrile compounds. More importantly, the present compound, I⋅DMF(Zn) appears to absorb cis-crotononitrile selectively from the cis/trans mixture as well as a mixture containing the structural isomer (allylnitrile). It also preferentially absorbs propionitrile from an equimolar mixture of acetonitrile, propionitrile, and butyronitrile (1:2:1). The cobalt compound exhibits anti-ferromagnetic behavior.
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