Solvothermal synthesis of discrete cages and extended networks comprising {Cr(iii)3O(O2CR)3(oxime)3}2− (R = H, CH3, C(CH3)3, C14H9) building blocks†,10.1039/C6RA14811E

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Lactoyl-CoA 全氟丁基戊烷白叶藤碱全氟己基辛烷新白叶藤碱壳寡糖特色专题-生物多肽

Solvothermal synthesis of discrete cages and extended networks comprising {Cr(iii)3O(O2CR)3(oxime)3}2− (R = H, CH3, C(CH3)3, C14H9) building blocks†

Edel Houton,Priyanka Comar,Mateusz B. Pitak,Simon J. Coles,Alan. G. Ryder,Stergios Piligkos,Euan K. Brechin

RSC Advances Pub Date : 07/28/2016 00:00:00 , DOI:10.1039/C6RA14811E

Abstract

The synthesis, structural and magnetic characterisation of a family of related Cr(III) cages are reported. Each member comprises {Cr(III)₃O(O₂CR₁)₃(R₂-sao)₃}²⁻ (R₁ = H, CH₃, C(CH₃)₃, C₁₄H₉; R₂ = Me, Ph, ^tBu, C₁₀H₈) triangles linked by Na⁺ cations, resulting in either the discrete complexes [H₃O][NEt₄]₂[NaCr(III)₆O₂(O₂C-C₁₄H₉)₆(Naphth-sao)₆] (1) and [Na₄Cr(III)₆O₂(O₂CC(CH₃)₃)₆(3,5-di-^tBu-sao)₆(MeCN)₆] (3); or the extended networks [H₃O]₂[Na₂Cr(III)₆O₂(O₂CH)₆(Ph-sao)₆(MeCN)₂(H₂O)₂]_n·4MeCN (2); [H₃O][Na₃Cr(III)₆O₂(O₂CCH₃)₆(Me-sao)₆(MeCN)]_n (4) and [Na₂Cr(III)₃O(O₂CCH₃)₃(Me-sao)₃(H₂O)₆]_n·3MeCN (5). Magnetic susceptibility data obtained for 2 and 4 reveal weak antiferromagnetic exchange between the Cr(III) ions in the triangles.