Diastereoselective assembly of pentanuclear circular helicates

O.R. Clegg, R.V. Fennessy, L.P. Harding, C.R. Rice, T. Riis-Johannessen, N.C. Fletcher

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Abstract

Reaction of a ligand which contains two N-donor and O-donor tridentate domains separated by a 1,3-phenylene spacer unit with Zn2+ ions results in a pentanuclear circular helicate [Zn5(L)5]10+ and this structure persists in both the solid and solution state. The formation of this high nuclearity species is governed by unfavourable steric interactions between the phenyl units which destabilize the simple linear helicate. Incorporation of enantiopure units within the ligand strand controls the diastereoselectivity with up to 80% d.e
Original languageEnglish
Pages (from-to)12381-12387
Number of pages7
JournalDalton Transactions
Volume40
Issue number45
DOIs
Publication statusPublished - Oct 2011

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    Clegg, O. R., Fennessy, R. V., Harding, L. P., Rice, C. R., Riis-Johannessen, T., & Fletcher, N. C. (2011). Diastereoselective assembly of pentanuclear circular helicates. Dalton Transactions, 40(45), 12381-12387. https://doi.org/10.1039/c1dt11414j