Site-Specific Metal Chelation Facilitates the Unveiling of Hidden Coordination Sites in an FeII/FeIII-Seamed Pyrogallol[4]arene Nanocapsule

Asanka S. Rathnayake; Hector W. L. Fraser; Euan K. Brechin; Scott J. Dalgarno; Jakob E. Baumeister; Joshua White; Pokpong Rungthanaphatsophon; Justin R. Walensky; Steven P. Kelley; Charles L. Barnes; Jerry L. Atwood

doi:10.1021/jacs.8b10186

Site-Specific Metal Chelation Facilitates the Unveiling of Hidden Coordination Sites in an Fe^II/Fe^III-Seamed Pyrogallol[4]arene Nanocapsule

Asanka S. Rathnayake, Hector W. L. Fraser, Euan K. Brechin, Scott J. Dalgarno, Jakob E. Baumeister, Joshua White, Pokpong Rungthanaphatsophon, Justin R. Walensky, Steven P. Kelley, Charles L. Barnes, Jerry L. Atwood

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Abstract

Under suitable conditions, C-alkylpyrogallol[4]arenes (PgCs) arrange into spherical metal-organic nanocapsules (MONCs) upon coordination to appropriate metal ions. Herein we present the synthesis and structural characterization of a novel FeII/FeIII-seamed MONC, as well as studies related to its electrochemical and magnetic behaviors. Unlike other MONCs that are assembled through 24 metal ions, this nanocapsule comprises 32 Fe ions, uncovering 8 additional coordination sites situated between the constituent PgC subunits. The FeII ions are likely formed by the reducing ability of DMF used in the synthesis, representing a novel synthetic route toward polynuclear mixed-valence MONCs.

Original language	English
Pages (from-to)	15611–15615
Number of pages	5
Journal	Journal of the American Chemical Society
Volume	140
Issue number	46
Early online date	8 Nov 2018
DOIs	https://doi.org/10.1021/jacs.8b10186
Publication status	Published - 21 Nov 2018

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Rathnayake, A. S., Fraser, H. W. L., Brechin, E. K., Dalgarno, S. J., Baumeister, J. E., White, J., Rungthanaphatsophon, P., Walensky, J. R., Kelley, S. P., Barnes, C. L., & Atwood, J. L. (2018). Site-Specific Metal Chelation Facilitates the Unveiling of Hidden Coordination Sites in an Fe^II/Fe^III-Seamed Pyrogallol[4]arene Nanocapsule. Journal of the American Chemical Society, 140(46), 15611–15615. https://doi.org/10.1021/jacs.8b10186

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title = "Site-Specific Metal Chelation Facilitates the Unveiling of Hidden Coordination Sites in an FeII/FeIII-Seamed Pyrogallol[4]arene Nanocapsule",

abstract = "Under suitable conditions, C-alkylpyrogallol[4]arenes (PgCs) arrange into spherical metal-organic nanocapsules (MONCs) upon coordination to appropriate metal ions. Herein we present the synthesis and structural characterization of a novel FeII/FeIII-seamed MONC, as well as studies related to its electrochemical and magnetic behaviors. Unlike other MONCs that are assembled through 24 metal ions, this nanocapsule comprises 32 Fe ions, uncovering 8 additional coordination sites situated between the constituent PgC subunits. The FeII ions are likely formed by the reducing ability of DMF used in the synthesis, representing a novel synthetic route toward polynuclear mixed-valence MONCs.",

author = "Rathnayake, {Asanka S.} and Fraser, {Hector W. L.} and Brechin, {Euan K.} and Dalgarno, {Scott J.} and Baumeister, {Jakob E.} and Joshua White and Pokpong Rungthanaphatsophon and Walensky, {Justin R.} and Kelley, {Steven P.} and Barnes, {Charles L.} and Atwood, {Jerry L.}",

year = "2018",

month = nov,

day = "21",

doi = "10.1021/jacs.8b10186",

language = "English",

volume = "140",

pages = "15611–15615",

journal = "Journal of the American Chemical Society",

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publisher = "American Chemical Society",

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Rathnayake, AS, Fraser, HWL, Brechin, EK, Dalgarno, SJ, Baumeister, JE, White, J, Rungthanaphatsophon, P, Walensky, JR, Kelley, SP, Barnes, CL & Atwood, JL 2018, 'Site-Specific Metal Chelation Facilitates the Unveiling of Hidden Coordination Sites in an Fe^II/Fe^III-Seamed Pyrogallol[4]arene Nanocapsule', Journal of the American Chemical Society, vol. 140, no. 46, pp. 15611–15615. https://doi.org/10.1021/jacs.8b10186

Site-Specific Metal Chelation Facilitates the Unveiling of Hidden Coordination Sites in an Fe^II/Fe^III-Seamed Pyrogallol[4]arene Nanocapsule. / Rathnayake, Asanka S.; Fraser, Hector W. L.; Brechin, Euan K. et al.
In: Journal of the American Chemical Society, Vol. 140, No. 46, 21.11.2018, p. 15611–15615.

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

TY - JOUR

T1 - Site-Specific Metal Chelation Facilitates the Unveiling of Hidden Coordination Sites in an FeII/FeIII-Seamed Pyrogallol[4]arene Nanocapsule

AU - Rathnayake, Asanka S.

AU - Fraser, Hector W. L.

AU - Brechin, Euan K.

AU - Dalgarno, Scott J.

AU - Baumeister, Jakob E.

AU - White, Joshua

AU - Rungthanaphatsophon, Pokpong

AU - Walensky, Justin R.

AU - Kelley, Steven P.

AU - Barnes, Charles L.

AU - Atwood, Jerry L.

PY - 2018/11/21

Y1 - 2018/11/21

N2 - Under suitable conditions, C-alkylpyrogallol[4]arenes (PgCs) arrange into spherical metal-organic nanocapsules (MONCs) upon coordination to appropriate metal ions. Herein we present the synthesis and structural characterization of a novel FeII/FeIII-seamed MONC, as well as studies related to its electrochemical and magnetic behaviors. Unlike other MONCs that are assembled through 24 metal ions, this nanocapsule comprises 32 Fe ions, uncovering 8 additional coordination sites situated between the constituent PgC subunits. The FeII ions are likely formed by the reducing ability of DMF used in the synthesis, representing a novel synthetic route toward polynuclear mixed-valence MONCs.

AB - Under suitable conditions, C-alkylpyrogallol[4]arenes (PgCs) arrange into spherical metal-organic nanocapsules (MONCs) upon coordination to appropriate metal ions. Herein we present the synthesis and structural characterization of a novel FeII/FeIII-seamed MONC, as well as studies related to its electrochemical and magnetic behaviors. Unlike other MONCs that are assembled through 24 metal ions, this nanocapsule comprises 32 Fe ions, uncovering 8 additional coordination sites situated between the constituent PgC subunits. The FeII ions are likely formed by the reducing ability of DMF used in the synthesis, representing a novel synthetic route toward polynuclear mixed-valence MONCs.

U2 - 10.1021/jacs.8b10186

DO - 10.1021/jacs.8b10186

M3 - Article

C2 - 30407812

SN - 0002-7863

VL - 140

SP - 15611

EP - 15615

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

IS - 46

ER -

Site-Specific Metal Chelation Facilitates the Unveiling of Hidden Coordination Sites in an FeII/FeIII-Seamed Pyrogallol[4]arene Nanocapsule

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Site-Specific Metal Chelation Facilitates the Unveiling of Hidden Coordination Sites in an Fe^II/Fe^III-Seamed Pyrogallol[4]arene Nanocapsule