title: Synthesis and reactions of N-heterocycle functionalised variants of heterometallic {Cr7Ni} rings.
abstract: Here we present a series of linked cage complexes of functionalised variants of the octametallic ring {Cr7Ni} with the general formula [(n)Pr2NH2][Cr7NiF8(O2C(t)Bu)15(O2CR)], where HO2CR is a N-heterocycle containing carboxylic acid. These compounds are made by reacting [(n)Pr2NH2][Cr7NiF8(O2C(t)Bu)15(O2CR)] with a variety of simple metal salts and metal dimers. The carboxylic acids studied include iso-nicotinic acid, 3-(4-pyridyl)acrylic acid and 4-pyridazine carboxylic acid. These new linked cage complexes have been studied structurally and the study highlights the versatility of functionalised {Cr7Ni} as a Lewis base ligand. As {Cr7Ni} is a putative molecular electron spin qubit this work contributes to our understanding of the chemistry that might be required to assemble molecular spin qubits.
authors.affiliation: School of Chemistry, The University of Manchester, Oxford Road, Manchester M13 9PL, UK. richard.winpenny@manchester.ac.uk.
authors.forename: George F S
authors.initials: GF
authors.lastname: Whitehead
authors.forename: Jesús
authors.initials: J
authors.lastname: Ferrando-Soria
authors.forename: Laura
authors.initials: L
authors.lastname: Carthy
authors.forename: Robin G
authors.initials: RG
authors.lastname: Pritchard
authors.forename: Simon J
authors.initials: SJ
authors.lastname: Teat
authors.forename: Grigore A
authors.initials: GA
authors.lastname: Timco
authors.forename: Richard E P
authors.initials: RE
authors.lastname: Winpenny
mesh_terms: D002857:Chromium / Q000737:chemistry*; D018360:Crystallography, X-Ray; D006571:Heterocyclic Compounds / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D009532:Nickel / Q000737:chemistry*; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D011789:Quantum Theory
chemical_list: D006571:Heterocyclic Compounds; D009942:Organometallic Compounds; D002857:Chromium; D009532:Nickel