Crowding out: ligand modifications and their structure directing effects on brucite-like {Mx(μ3-OH)y} (M = Co(ii), Ni(ii)) core growth within polymetallic cages
Authors
Slater-Parry, MEDurrant, JP
Howells, JM
Pitak, MB
Horton, PN
Klooster, WT
Coles, SJ
O'Connor, HM
Brechin, EK
Barra, AL
Jones, Leigh
Issue Date
2018-12-20
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© The Royal Society of Chemistry. Previous employment of the ligands 2-methoxy-6-[(methylimino)methyl]phenol (L 1 H) and 2-methoxy-6-[(phenylimino)methyl]phenol (L 2 H) has resulted in the self-assembly of pseudo metallocalix[6]arene complexes of general formulae: [M 7 (μ 3 -OH) 6 (L x ) 6 ](NO 3 ) y (M = Ni(ii), x = 1, y = 2 (1) and Co(ii/iii), x = 2, y = 3 (2)). Extrapolating upon this work, we report the coordination chemistry of ligands 2-methoxy-6-{[(2-methoxyphenyl)imino]methyl}phenol (L 3 H), 2-[(benzylimino)methyl]-6-methoxyphenol (L 4 H), 2-[(benzylamino)methyl]-6-methoxyphenol (L 5 H) and 2-[(benzylamino)methyl]-4-bromo-6-methoxyphenol (L 6 H), whose structures are modifications of ligands L 1-2 H. These ligands are employed in the synthesis and characterisation of the dimetallic complex [Ni(ii) 2 (L 3 ) 3 (H 2 O)](NO 3 )·2H 2 O·3MeOH (3); the monometallic complexes [Ni(ii)(L 4 ) 2 ] (4) and [Co(iii)(L 4 ) 3 ]·H 2 O·MeOH (5a); and the tetranuclear pseudo metallocalix[4]arene complexes: [(NO 3 )⊂Co(ii) 4 (μ 3 -OH) 2 (L 5 ) 4 (H 2 O) 2 ](NO 3 )·H 2 O (6), [(NO 3 )⊂Ni(ii) 4 (μ 3 -OH) 2 (L 5 ) 4 (H 2 O) 2 ](NO 3 )·H 2 O (7) and [Ni(ii) 4 (μ 3 -OH) 2 (L 6 ) 4 (NO 3 ) 2 ]·MeCN (8). The tetrametallic 'butterfly' core topologies in 6-8 are discussed with respect to their structural and topological relationship with their heptanuclear [M 7 ] (M = Co(ii), Ni(ii)) pseudo metallocalix[6]arene ancestors (1 and 2).Citation
Slater-Parry, M. E., Durrant, J. P., Howells, J. M., Pitak, M. B., Horton, P. N., Klooster, W. T., Coles, S. J., O'Connor, H. M., Brechin, E. K., Barra, A-L & Jones, L. F. (2019) Crowding out: ligand modifications and their structure directing effects on brucite-like {M-x((3)-OH)(y)} (M = Co(ii), Ni(ii)) core growth within polymetallic cages, Dalton Transactions, 48(4), pp. 1477-1488. https://doi.org/10.1039/C8DT04229BPublisher
Royal Society of Chemistry (RSC)Journal
Dalton TransactionsPubMed ID
30632582Type
Journal articleLanguage
enDescription
This is an accepted manuscript of an article published by Royal Society of Chemistry in Dalton Transactions on 20/12/2018, available online: https://doi.org/10.1039/C8DT04229B The accepted version of the publication may differ from the final published version.ISSN
1477-9226EISSN
1477-9234ae974a485f413a2113503eed53cd6c53
10.1039/c8dt04229b
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