title: A family of double-bowl pseudo metallocalix[6]arene discs.
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.
authors.affiliation: School of Chemistry, University Road, National University of Ireland, Galway, Ireland.
authors.forename: Seán T
authors.initials: ST
authors.lastname: Meally
authors.forename: Cecelia
authors.initials: C
authors.lastname: McDonald
authors.forename: Georgios
authors.initials: G
authors.lastname: Karotsis
authors.forename: Giannis S
authors.initials: GS
authors.lastname: Papaefstathiou
authors.forename: Euan K
authors.initials: EK
authors.lastname: Brechin
authors.forename: Peter W
authors.initials: PW
authors.lastname: Dunne
authors.forename: Patrick
authors.initials: P
authors.lastname: McArdle
authors.forename: Nicholas P
authors.initials: NP
authors.lastname: Power
authors.forename: Leigh F
authors.initials: LF
authors.lastname: Jones
mesh_terms: D047250:Calixarenes / Q000737:chemistry*; D056831:Coordination Complexes / Q000138:chemical synthesis / Q000737:chemistry; D018360:Crystallography, X-Ray; D008024:Ligands; D008280:Magnetics; D008670:Metals / Q000737:chemistry*; D008968:Molecular Conformation; D009532:Nickel / Q000737:chemistry; D010636:Phenols / Q000737:chemistry*; D012545:Schiff Bases / Q000737:chemistry; D012996:Solutions / Q000737:chemistry; D015032:Zinc / Q000737:chemistry
chemical_list: D056831:Coordination Complexes; D008024:Ligands; D008670:Metals; D010636:Phenols; D012545:Schiff Bases; D012996:Solutions; C476540:calix(6)arene; D047250:Calixarenes; D009532:Nickel; D015032:Zinc