Systematic assembly of the double molecular boxes: {Cs⊂[CpCo(CN)3]4[Cp*Ru]3} as a tridentate ligand

Stephen M. Contakes; Matthew L. Kuhlman; Maya Ramesh; Scott R. Wilson; Thomas B. Rauchfuss

doi:10.1073/pnas.062647799

Systematic assembly of the double molecular boxes: {Cs⊂[CpCo(CN)₃]₄[Cp*Ru]₃} as a tridentate ligand

Stephen M. Contakes, Matthew L. Kuhlman, Maya Ramesh, Scott R. Wilson, Thomas B. Rauchfuss

Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

Cubic cage compounds composed of Co-CN-Ru linkages have been prepared which illustrate the following features: (i) new motifs for alkali metal ion complexation (i.e., cationic receptors for cations), (ii) a new family of triaza-metalloligands, and (iii) a double box-like cage. The cages are synthesized by the condensation of [CpCo(CN)₃]^- and [Cp*Ru(NCMe)₃]⁺ (cyclopentadienyl, Cp; pentamethylcyclopentadienyl, Cp*) the presence of Cs⁺. The species {Cs⊂{[CpCo(CN)₃]₄ [Cp*Ru]₄}⁺ and {Cs⊂{[CpCo(CN)₃]₄ [Cp*Ru]₃[Cp*Rh]}₂₊ illustrate the box-completion reaction Cs ⊂ Co₄Ru₃ + M (M = Cp*Rh²⁺, Cp*Ru⁺). With the naked ion precursors [Na(NCMe)₆]⁺ and [Fe(NCMe)₆]²⁺, the box-completion reactions afforded {Na{Cs⊂[CpCo(CN)₃]₄ [Cp*Ru]₃]}₂}⁺ and {Fe{Cs⊂ [CpCo(CN)₃]₄ [Cp*Ru]₃]}₂}²⁺. These cages provide the first examples, to our knowledge, of the double-box motif.

Original language	English (US)
Pages (from-to)	4889-4893
Number of pages	5
Journal	Proceedings of the National Academy of Sciences of the United States of America
Volume	99
Issue number	8
DOIs	https://doi.org/10.1073/pnas.062647799
State	Published - Apr 16 2002

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@article{07a71c658f0248679f545e796597d7c6,

title = "Systematic assembly of the double molecular boxes: {Cs⊂[CpCo(CN)3]4[Cp*Ru]3} as a tridentate ligand",

abstract = "Cubic cage compounds composed of Co-CN-Ru linkages have been prepared which illustrate the following features: (i) new motifs for alkali metal ion complexation (i.e., cationic receptors for cations), (ii) a new family of triaza-metalloligands, and (iii) a double box-like cage. The cages are synthesized by the condensation of [CpCo(CN)3]- and [Cp*Ru(NCMe)3]+ (cyclopentadienyl, Cp; pentamethylcyclopentadienyl, Cp*) the presence of Cs+. The species {Cs⊂{[CpCo(CN)3]4 [Cp*Ru]4}+ and {Cs⊂{[CpCo(CN)3]4 [Cp*Ru]3[Cp*Rh]}2+ illustrate the box-completion reaction Cs ⊂ Co4Ru3 + M (M = Cp*Rh2+, Cp*Ru+). With the naked ion precursors [Na(NCMe)6]+ and [Fe(NCMe)6]2+, the box-completion reactions afforded {Na{Cs⊂[CpCo(CN)3]4 [Cp*Ru]3]}2}+ and {Fe{Cs⊂ [CpCo(CN)3]4 [Cp*Ru]3]}2}2+. These cages provide the first examples, to our knowledge, of the double-box motif.",

author = "Contakes, {Stephen M.} and Kuhlman, {Matthew L.} and Maya Ramesh and Wilson, {Scott R.} and Rauchfuss, {Thomas B.}",

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T2 - {Cs⊂[CpCo(CN)3]4[Cp*Ru]3} as a tridentate ligand

AU - Contakes, Stephen M.

AU - Kuhlman, Matthew L.

AU - Ramesh, Maya

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AU - Rauchfuss, Thomas B.

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N2 - Cubic cage compounds composed of Co-CN-Ru linkages have been prepared which illustrate the following features: (i) new motifs for alkali metal ion complexation (i.e., cationic receptors for cations), (ii) a new family of triaza-metalloligands, and (iii) a double box-like cage. The cages are synthesized by the condensation of [CpCo(CN)3]- and [Cp*Ru(NCMe)3]+ (cyclopentadienyl, Cp; pentamethylcyclopentadienyl, Cp*) the presence of Cs+. The species {Cs⊂{[CpCo(CN)3]4 [Cp*Ru]4}+ and {Cs⊂{[CpCo(CN)3]4 [Cp*Ru]3[Cp*Rh]}2+ illustrate the box-completion reaction Cs ⊂ Co4Ru3 + M (M = Cp*Rh2+, Cp*Ru+). With the naked ion precursors [Na(NCMe)6]+ and [Fe(NCMe)6]2+, the box-completion reactions afforded {Na{Cs⊂[CpCo(CN)3]4 [Cp*Ru]3]}2}+ and {Fe{Cs⊂ [CpCo(CN)3]4 [Cp*Ru]3]}2}2+. These cages provide the first examples, to our knowledge, of the double-box motif.

AB - Cubic cage compounds composed of Co-CN-Ru linkages have been prepared which illustrate the following features: (i) new motifs for alkali metal ion complexation (i.e., cationic receptors for cations), (ii) a new family of triaza-metalloligands, and (iii) a double box-like cage. The cages are synthesized by the condensation of [CpCo(CN)3]- and [Cp*Ru(NCMe)3]+ (cyclopentadienyl, Cp; pentamethylcyclopentadienyl, Cp*) the presence of Cs+. The species {Cs⊂{[CpCo(CN)3]4 [Cp*Ru]4}+ and {Cs⊂{[CpCo(CN)3]4 [Cp*Ru]3[Cp*Rh]}2+ illustrate the box-completion reaction Cs ⊂ Co4Ru3 + M (M = Cp*Rh2+, Cp*Ru+). With the naked ion precursors [Na(NCMe)6]+ and [Fe(NCMe)6]2+, the box-completion reactions afforded {Na{Cs⊂[CpCo(CN)3]4 [Cp*Ru]3]}2}+ and {Fe{Cs⊂ [CpCo(CN)3]4 [Cp*Ru]3]}2}2+. These cages provide the first examples, to our knowledge, of the double-box motif.

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