Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance upgrade on Thursday 4th of May 2017 from 8.00am to 9.00am (BST).

During this time our websites will be offline temporarily. If you have any questions please use the feedback button on this page. We apologise for any inconvenience this might cause and thank you for your patience.



A robust metallomacrocyclic motif for the formation interpenetrated coordination polymers

Author affiliations

Abstract

The reproducibility of an M2L2 metallomacrocyclic synthon containing L-alanine substituted naphthalene diimide ligands (AlaNDI), and its ability to form both catenane and rotaxane motifs, has been demonstrated in a series of nine homochiral coordination polymers. The planes of the NDIs that comprise the metallomacrocycle are ∼7 Å apart, an ideal distance for an aromatic group to reside within the ring with multiple parallel π-interactions. The tendency for these systems to be dominated by π-interactions appears to be a driving force for interpenetration of these coordination polymers by either the formation of catenanes between two {M2(AlaNDI)2} metallomacrocycles or the formation of rotaxanes by dipyridyl coligands passing through metallomacrocycles (4,4′-bipyridine, dipyridylethene and dipyridylnaphthalenediimide). Due to both of these interpenetration motifs being facilitated by parallel π-interactions, the interpenetration of the individual networks does not typically lead to increased dimensionality in the structures, with the exception of one material in which a 1D chain interpenetrates in a 1D → 2D manner. Two of the reported coordination polymers, both containing dipyridylnaphthalenediimide (4PyNDI), are not interpenetrated with π-interactions present between the 4PyNDI ligands themselves rather than engaging with the macrocycles. Overall the reproducibility of the metallomacrocycle, and the relatively common occurrence of catenane and rotaxane motifs, suggests that this is a promising synthon for further crystal engineering applications.

Graphical abstract: A robust metallomacrocyclic motif for the formation interpenetrated coordination polymers

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 14 Mar 2017, accepted on 25 Mar 2017 and first published on 28 Mar 2017


Article type: Paper
DOI: 10.1039/C7CE00498B
Citation: CrystEngComm, 2017, Advance Article
  •   Request permissions

    A robust metallomacrocyclic motif for the formation interpenetrated coordination polymers

    S. A. Boer and D. R. Turner, CrystEngComm, 2017, Advance Article , DOI: 10.1039/C7CE00498B

Search articles by author