Cargando…

Large, heterometallic coordination cages based on ditopic metallo-ligands with 3-pyridyl donor groups

Ditopic N-donor ligands with terminal 4-pyridyl groups are omnipresent in coordination-based self-assembly. The utilization of ligands with 3-pyridyl donor groups is significantly less common, because the intrinsic conformational flexibility of these ligands tends to favor the formation of small agg...

Descripción completa

Detalles Bibliográficos
Autores principales: Wise, Matthew D., Holstein, Julian J., Pattison, Philip, Besnard, Celine, Solari, Euro, Scopelliti, Rosario, Bricogne, Gerard, Severin, Kay
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Royal Society of Chemistry 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5811078/
https://www.ncbi.nlm.nih.gov/pubmed/29560187
http://dx.doi.org/10.1039/c4sc03046j
_version_ 1783299810389917696
author Wise, Matthew D.
Holstein, Julian J.
Pattison, Philip
Besnard, Celine
Solari, Euro
Scopelliti, Rosario
Bricogne, Gerard
Severin, Kay
author_facet Wise, Matthew D.
Holstein, Julian J.
Pattison, Philip
Besnard, Celine
Solari, Euro
Scopelliti, Rosario
Bricogne, Gerard
Severin, Kay
author_sort Wise, Matthew D.
collection PubMed
description Ditopic N-donor ligands with terminal 4-pyridyl groups are omnipresent in coordination-based self-assembly. The utilization of ligands with 3-pyridyl donor groups is significantly less common, because the intrinsic conformational flexibility of these ligands tends to favor the formation of small aggregates. Here, we show that large Pd(6)L(12) (12+) cages can be obtained by reaction of Pd(ii) salts with metallo-ligands L bearing terminal 3-pyridyl groups. The easy-to-access metallo-ligands contain an Fe(ii) clathrochelate core. These sterically demanding clathrochelate complexes prevent the formation of smaller aggregates, which is observed for less bulky analogous building blocks. The cages were shown to bind BF(4) (–) and BPh(4) (–) anions in aqueous solvent mixtures, whilst the lateral size of the clathrochelate significantly affects their guest encapsulation behavior.
format Online
Article
Text
id pubmed-5811078
institution National Center for Biotechnology Information
language English
publishDate 2015
publisher Royal Society of Chemistry
record_format MEDLINE/PubMed
spelling pubmed-58110782018-03-20 Large, heterometallic coordination cages based on ditopic metallo-ligands with 3-pyridyl donor groups Wise, Matthew D. Holstein, Julian J. Pattison, Philip Besnard, Celine Solari, Euro Scopelliti, Rosario Bricogne, Gerard Severin, Kay Chem Sci Chemistry Ditopic N-donor ligands with terminal 4-pyridyl groups are omnipresent in coordination-based self-assembly. The utilization of ligands with 3-pyridyl donor groups is significantly less common, because the intrinsic conformational flexibility of these ligands tends to favor the formation of small aggregates. Here, we show that large Pd(6)L(12) (12+) cages can be obtained by reaction of Pd(ii) salts with metallo-ligands L bearing terminal 3-pyridyl groups. The easy-to-access metallo-ligands contain an Fe(ii) clathrochelate core. These sterically demanding clathrochelate complexes prevent the formation of smaller aggregates, which is observed for less bulky analogous building blocks. The cages were shown to bind BF(4) (–) and BPh(4) (–) anions in aqueous solvent mixtures, whilst the lateral size of the clathrochelate significantly affects their guest encapsulation behavior. Royal Society of Chemistry 2015-02-01 2014-11-11 /pmc/articles/PMC5811078/ /pubmed/29560187 http://dx.doi.org/10.1039/c4sc03046j Text en This journal is © The Royal Society of Chemistry 2014 http://creativecommons.org/licenses/by/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution 3.0 Unported License (http://creativecommons.org/licenses/by/3.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Chemistry
Wise, Matthew D.
Holstein, Julian J.
Pattison, Philip
Besnard, Celine
Solari, Euro
Scopelliti, Rosario
Bricogne, Gerard
Severin, Kay
Large, heterometallic coordination cages based on ditopic metallo-ligands with 3-pyridyl donor groups
title Large, heterometallic coordination cages based on ditopic metallo-ligands with 3-pyridyl donor groups
title_full Large, heterometallic coordination cages based on ditopic metallo-ligands with 3-pyridyl donor groups
title_fullStr Large, heterometallic coordination cages based on ditopic metallo-ligands with 3-pyridyl donor groups
title_full_unstemmed Large, heterometallic coordination cages based on ditopic metallo-ligands with 3-pyridyl donor groups
title_short Large, heterometallic coordination cages based on ditopic metallo-ligands with 3-pyridyl donor groups
title_sort large, heterometallic coordination cages based on ditopic metallo-ligands with 3-pyridyl donor groups
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5811078/
https://www.ncbi.nlm.nih.gov/pubmed/29560187
http://dx.doi.org/10.1039/c4sc03046j
work_keys_str_mv AT wisematthewd largeheterometalliccoordinationcagesbasedonditopicmetalloligandswith3pyridyldonorgroups
AT holsteinjulianj largeheterometalliccoordinationcagesbasedonditopicmetalloligandswith3pyridyldonorgroups
AT pattisonphilip largeheterometalliccoordinationcagesbasedonditopicmetalloligandswith3pyridyldonorgroups
AT besnardceline largeheterometalliccoordinationcagesbasedonditopicmetalloligandswith3pyridyldonorgroups
AT solarieuro largeheterometalliccoordinationcagesbasedonditopicmetalloligandswith3pyridyldonorgroups
AT scopellitirosario largeheterometalliccoordinationcagesbasedonditopicmetalloligandswith3pyridyldonorgroups
AT bricognegerard largeheterometalliccoordinationcagesbasedonditopicmetalloligandswith3pyridyldonorgroups
AT severinkay largeheterometalliccoordinationcagesbasedonditopicmetalloligandswith3pyridyldonorgroups