Studies on the structural diversity of MOFs containing octahedral siloxane-backboned connectors

Delmas, Luke C.; White, Andrew J. P.; Coles, Simon J.; Lickiss, Paul D.; Davies, Robert P.

doi:10.1016/j.poly.2018.09.050

Cited by 5 publications

(1 citation statement)

References 51 publications

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“…Given our experience in the development of siloxane-based linkers for MOF construction, [15][16][17] we set out to develop a novel silicone-derived linker for the direct construction of low water affinity MOFs. Silicones are well known for their hydrophobic properties, 18 and studies of post-synthetic incorporation of silicone units in MOF materials [either by particle coating [6][7][8] or functionalization of secondary building units (SBUs) 19 ] suggests that such an approach may successfully lead to low water affinity materials.…”

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Stable metal–organic frameworks with low water affinity built from methyl-siloxane linkers

et al. 2020

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Stable metal–organic frameworks with low water affinity built from methyl-siloxane linkers

et al. 2020

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Reactive and Functional Silicones for Special Applications

Racleş¹,

Dascălu²,

Bele³

et al. 2020

Reactive and Functional Polymers Volume One

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Coordination Affinity of Cu(II)-Based Silsesquioxanes toward N,N-Ligands and Associated Skeletal Rearrangements: Cage and Ionic Products Exhibiting a High Catalytic Activity in Oxidation Reactions

et al. 2020

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An unusual skeletal rearrangement of piperazine into ethylenediamine has been observed for the first time as a result of an attempt to synthesize a piperazine-linked metal−organic framework (MOF) using cage Cu(II),Na-phenylsilsequixane as a potential building block. Instead of the expected "metallasilsesquioxane-based MOF", a Cu 6 complex 1 coordinated both by silsesquioxane and ethylenediamine ligands was isolated. An effort to reproduce this result via direct interaction of Cu-phenylsilsequioxane and ethylenediamine surprisingly afforded two other types of complexes, copper−sodium 2 and copper 3 ionic products. Cationic components in both products 2 and 3 are represented by (i) copper and sodium ions (in the case of 2) or (ii) copper ions exclusively (in the case of 3) coordinated by ethylenediamine ligands. Both complexes 2 and 3 include Si 6 -based condensed silsesquioxane fragments serving as anionic components of the products. Symptomatically, the types of the Si 6 -frameworks in 2 and 3 are drastically different. More specifically, the Si 6 unit in 2 is an unprecedented distorted silsesquioxane skeleton consisting of two condensed tetramembered rings. Structural features of compounds 1−3 were established by single crystal X-ray diffraction. Compound 2 was found to catalyze the oxidation of cyclohexane to cyclohexanol and cyclohexanone with H 2 O 2 (a mixture of these products was obtained after adding PPh 3 to the reaction solution) as well as the transformation of cyclohexanol to cyclohexanone under the action of tert-butyl hydroperoxide.Article pubs.acs.org/IC

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Studies on the structural diversity of MOFs containing octahedral siloxane-backboned connectors

Cited by 5 publications

References 51 publications

Stable metal–organic frameworks with low water affinity built from methyl-siloxane linkers

Stable metal–organic frameworks with low water affinity built from methyl-siloxane linkers

Reactive and Functional Silicones for Special Applications

Coordination Affinity of Cu(II)-Based Silsesquioxanes toward N,N-Ligands and Associated Skeletal Rearrangements: Cage and Ionic Products Exhibiting a High Catalytic Activity in Oxidation Reactions

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