A family of double-bowl pseudo metallocalix[6]arene discs

Meally, Seán T.; McDonald, Cecelia; Karotsis, Georgios; Papaefstathiou, Giannis S.; Brechin, Euan K.; Dunne, Peter W.; McArdle, Patrick; Power, Nicholas P. and Jones, Leigh F. (2010). A family of double-bowl pseudo metallocalix[6]arene discs. Dalton Transactions, 39(20) pp. 4809–4816.

DOI: https://doi.org/10.1039/B926704B

Abstract

We report the synthesis and magnetic characterisation of a series of planar [M₇] (M = Ni^II, Zn^II) disc complexes [Ni₇(OH)₆(L₁)₆](NO₃)₂ (1), [Ni₇(OH)₆(L₁)₆](NO₃)₂·2MeOH (2), [Ni₇(OH)₆(L₁)6](NO₃)₂·3MeNO₂ (3), [Ni₇(OH)₆(L₂)₆](NO₃)₂·2MeCN (4), [Zn₇(OH)₆(L₁)₆](NO₃)₂·2MeOH·H₂O (5) and [Zn₇(OH)₆(L₁)₆](NO₃)₂·3MeNO₂ (6) (where HL₁ = 2-iminomethyl-6-methoxy-phenol, HL₂ = 2-iminomethyl-4-bromo-6-methoxy-phenol). Each member exhibits a double-bowl pseudo metallocalix[6]arene topology whereby the individual [M₇] units form molecular host cavities which are able to accommodate various guest molecules (MeCN, MeNO₂ and MeOH). Magnetic susceptibility measurements carried out on complexes 1 and 4 indicate weak exchange between the Ni^II centres.

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About

• Item ORO ID
• 46898
• Item Type
• Journal Item
• ISSN
• 1477-9226
• Keywords
• molecular magnets; supramolecular; calixarenes
• Academic Unit or School
• Faculty of Science, Technology, Engineering and Mathematics (STEM) > Life, Health and Chemical Sciences
  Faculty of Science, Technology, Engineering and Mathematics (STEM)
• Copyright Holders
• © 2010 Royal Society of Chemistry
• Depositing User
• Nicholas Power