A flexible coordination polymer crystal providing reversible structural and magnetic conversions.

A flexible coordination polymer crystal providing reversible structural and magnetic conversions. Research Abstract Details 

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A flexible coordination polymer crystal providing reversible structural and magnetic conversions. Abstract Text:

Wakako Kaneko,Masaaki Ohba,Susumu Kitagawa,Wakako Kaneko,Masaaki Ohba,Susumu Kitagawa,

Structural flexibility is a remarkable characteristic of coordination polymers and significant for the attainment of environmental responsivity. We have prepared a 2D cyanide-bridged MnIICrIII coordination polymer, [Mn(NNdmenH)(H2O)][Cr(CN)6].H2O (1; NNdmen = N,N-dimethylethylenediamine), with sophisticatedly arranged removable water coligands. The compound clearly showed a reversible single-crystal-to-single-crystal transformation between the 2D sheet and a 3D pillared-sheet framework of dehydrated [Mn(NNdmenH)][Cr(CN)6] (1a). The structural change was reversible and accompanied with generation/cleavage of CN-Mn bonds between 2D sheets by dehydration/hydration. Compounds 1 and 1a also exhibited a ferrimagnetic ordering at 35.2 and 60.4 K, respectively, and the magnetic characteristics were reversibly converted by guest adsorption/desorption. In addition, the dehydrated 1a demonstrated a size-selective solvent adsorption linking chemi- and physisorption processes and shrinkage/expansion of its framework. The flexible magnetic framework incorporating removable coligands delivered multifunctions with chemical response.

A flexible coordination polymer crystal providing reversible structural and magnetic conversions. Publishing Authors By Initials

W Kaneko,M Ohba,S Kitagawa,W Kaneko,M Ohba,S Kitagawa,

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A flexible coordination polymer crystal providing reversible structural and magnetic conversions. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of the American Chemical Society

VOLUME: 129

Page Numbers: 13706-12

Journal Abbreviation: J. Am. Chem. Soc.

ISSN: 0002-7863

DAY: 11

MONTH: 10

YEAR: 2007

A flexible coordination polymer crystal providing reversible structural and magnetic conversions. Information

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LANGUAGE: eng

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Grant and Affiliation Information for A flexible coordination polymer crystal providing reversible structural and magnetic conversions.

AFFILIATION: Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, Japan.

Country: United States

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MEDLINETA: J Am Chem Soc

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