Alkyl Linker Effects on the Coordination Topology of Ditopic Di(2-pyridylmethyl)amine Carboxylate Ligands with Znˡˡ and Cuˡˡ: Polymers Vs. Macrocycles

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aut.relation.endpage2988
aut.relation.issue15en_NZ
aut.relation.journalCrystEngCommen_NZ
aut.relation.startpage2974
aut.relation.volume17en_NZ
aut.researcherBlackman, Allan
dc.contributor.authorRodpun, Ken_NZ
dc.contributor.authorBlackman, AGen_NZ
dc.contributor.authorGardiner, MGen_NZ
dc.contributor.authorTan, EWen_NZ
dc.contributor.authorMeledandri, CJen_NZ
dc.contributor.authorLucas, NTen_NZ
dc.date.accessioned2019-04-26T03:32:31Z
dc.date.available2019-04-26T03:32:31Z
dc.date.copyright2015en_NZ
dc.date.issued2015en_NZ
dc.description.abstractA series of ditopic ω-di(2-pyridylmethyl)amine carboxylic acid ligands incorporating a range of n-alkyl linkers (CnCOOH, n = 3-5, 7, 10 and 11) have been synthesised. Solution phase studies showed a 1:1 coordination stoichiometry between the ligands and M(ClO4)2·6H2O (M = ZnII or CuII) in all cases. The ZnII and CuII complexes were subsequently crystallised by liquid-liquid diffusion and the solid-state structures investigated by X-ray crystallography. The crystal structures obtained are entirely consistent with the 1:1 metal-ligand ratio of the solution-phase adducts. However, the coordination geometries and complex topologies are dependent on the alkyl chain length of the ligand CnCOOH. The ZnII and CuII complexes of the short alkyl chain ligands (n ≤ 5) exhibit 1D coordination polymeric structures with somewhat different conformations for {[Zn(C3COO)(H2O)](ClO4)·3.5H2O}n (1), {[Zn(C4COO)(H2O)]4(ClO4)4·1.5H2O}n (2), {[Zn(C5COO)(H2O)](ClO4)}n (3), {[Cu(C3COO)](ClO4)·MeOH}n (4), {[Cu(C4COO)(H2O)]2(ClO4)2·2H2O}n (5) and {[Cu(C5COO)(H2O)](ClO4)·2H2O}n (6). In contrast, the ligands with longer alkyl chains (n ≥ 7) participate in Zn2L2 metallomacrocyclic structures {[Zn(C7COO)(H2O)](ClO4)}2 (7), [Zn2(C10COO)2(H2O)2](ClO4)2·2H2O·MeOH (8) and {[Zn2(C11COO)2(H2O)2][Zn2(C11COO)2](ClO4)4·H2O}n (9). The formation of metallomacrocycles instead of the 1D coordination polymers is a persistent trend and, with identical crystal growth conditions and a non-coordinating anion employed, appears to be an effect of the longer alkyl chain.en_NZ
dc.identifier.citationCrystEngComm, 2015,17, 2974-2988
dc.identifier.doi10.1039/c5ce00375jen_NZ
dc.identifier.issn1466-8033en_NZ
dc.identifier.urihttps://hdl.handle.net/10292/12465
dc.languageengen_NZ
dc.publisherThe Royal Society of Chemistry
dc.relation.urihttps://pubs.rsc.org/en/content/articlelanding/2015/CE/C5CE00375J#!divAbstract
dc.rightsThis article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
dc.rights.accessrightsOpenAccessen_NZ
dc.titleAlkyl Linker Effects on the Coordination Topology of Ditopic Di(2-pyridylmethyl)amine Carboxylate Ligands with Znˡˡ and Cuˡˡ: Polymers Vs. Macrocyclesen_NZ
dc.typeJournal Article
pubs.elements-id182642
pubs.organisational-data/AUT
pubs.organisational-data/AUT/Health & Environmental Science
pubs.organisational-data/AUT/Health & Environmental Science/Applied Science
pubs.organisational-data/AUT/Health & Environmental Science/School of Science
pubs.organisational-data/AUT/PBRF
pubs.organisational-data/AUT/PBRF/PBRF Health and Environmental Sciences
pubs.organisational-data/AUT/PBRF/PBRF Health and Environmental Sciences/HA Science 2018 PBRF
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