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Linear bilateral extended 2,2′:6′,2′′-terpyridine ligands, their coordination complexes and heterometallic supramolecular networks


Veliks, Janis; Tseng, Jui-Chang; Arias, Karla I; Weisshar, Florian; Linden, Anthony; Siegel, Jay S (2014). Linear bilateral extended 2,2′:6′,2′′-terpyridine ligands, their coordination complexes and heterometallic supramolecular networks. Chemical Science, 5(11):4317-4327.

Abstract

Octahedral metal complexes of tridentate 2,20:60,20 0-terpyridine (terpy) fused with five-membered furan rings mimic the topology of tetrahedral metal complexes of bidentate 5,50-functionalized 2,20-bipyridine (bipy). Herein, we report the robust synthesis of 2,6-bis(2-substituted-furo[2,3-c]pyridine-5-yl)pyridine based ligands to access a series of linear bilateral extended terpy derivatives. This molecular design of alternating five- and six-membered rings has been applied to extend the applicability of terpy as a building block in supramolecular chemistry. The complexation of 2,6-bis(2-substituted-furo[2,3-c] pyridine-5-yl)pyridine derivatives with metal ions preferring octahedral geometry (Fe2+, Ru2+, and Zn2+) gives molecular “crossings” and “corners”. Such design elements, functionalized with 4-pyridyl groups, allowed the construction of 3D and 2D heterometallic supramolecular networks containing Fe2+, Ag+ or Fe2+, Cu+ metal centers.

Abstract

Octahedral metal complexes of tridentate 2,20:60,20 0-terpyridine (terpy) fused with five-membered furan rings mimic the topology of tetrahedral metal complexes of bidentate 5,50-functionalized 2,20-bipyridine (bipy). Herein, we report the robust synthesis of 2,6-bis(2-substituted-furo[2,3-c]pyridine-5-yl)pyridine based ligands to access a series of linear bilateral extended terpy derivatives. This molecular design of alternating five- and six-membered rings has been applied to extend the applicability of terpy as a building block in supramolecular chemistry. The complexation of 2,6-bis(2-substituted-furo[2,3-c] pyridine-5-yl)pyridine derivatives with metal ions preferring octahedral geometry (Fe2+, Ru2+, and Zn2+) gives molecular “crossings” and “corners”. Such design elements, functionalized with 4-pyridyl groups, allowed the construction of 3D and 2D heterometallic supramolecular networks containing Fe2+, Ag+ or Fe2+, Cu+ metal centers.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Chemistry
Dewey Decimal Classification:540 Chemistry
Language:English
Date:2014
Deposited On:06 Nov 2014 17:10
Last Modified:05 Apr 2016 18:29
Publisher:RSC Publishing
ISSN:2041-6520
Funders:Swiss National Science Foundation, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin
Publisher DOI:https://doi.org/10.1039/c4sc01025f

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