Ditopic and Tetratopic 4,2':6',4''-Terpyridines as Structural Motifs in 2D- and 3D-Coordination Assemblies

Authors

  • Catherine E. Housecroft 0000-0002-8074-0089 Department of Chemistry, University of Basel, BPR 1096, Mattenstrasse 24a, CH-4058 Basel;, Email: catherine.housecroft@unibas.ch
  • Edwin C. Constable 0000-0003-4916-4041 Department of Chemistry, University of Basel, BPR 1096, Mattenstrasse 24a, CH-4058 Basel

DOI:

https://doi.org/10.2533/chimia.2019.462

Keywords:

Coordination network, Coordination polymer, Ditopic ligand, Terpyridine, Tetratopic ligand

Abstract

We overview the coordination chemistry of ditopic and tetratopic ligands with 4,2':6',4''-terpyridine metal-binding domains and illustrate the adaptability of these divergent ligands as building blocks in 2D- and 3D-coordination networks. The ditopic ligands we discuss are limited to roles as linkers in coordination assemblies, while the tetratopic ligands have the potential to be 4-connecting nodes. Both di- and tetratopic ligands are equipped with functionalities, typically alkyloxy chains, the nature of which has a profound effect upon the coordination assembly. Combinations of 4-connecting ligand nodes with metal-linkers lead to both 2D- and 3D-networks, while combinations of 4-connecting metal and ligand nodes give 3D-architectures. We also demonstrate constraint of the coordination assembly to 2-dimensions by depositing ditopic 4,2':6',4"-terpyridine ligands onto Au(111) or Cu(111) platforms with Cu adatoms in the former case; highly ordered ladder assemblies result which are independent of solvent molecules or anions.

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Published

2019-07-26

How to Cite

[1]
C. E. Housecroft, E. C. Constable, Chimia 2019, 73, 462, DOI: 10.2533/chimia.2019.462.

Issue

Section

Scientific Articles