Issue 12, 2011
From the journal:

Dalton Transactions

Microporous {[Ni(cyclam)]3[W(CN)8]2}n affording reversible structural and magnetic conversions†

Beata Nowicka,*a   Maria Bałanda,b   Bartłomiej Gaweł,a   Grzegorz Ćwiak,b   Andrzej Budziak,b   Wiesław Łasochaa  and  Barbara Siekluckaa  

* Corresponding authors

a Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Kraków, Poland

b H. Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, Radzikowskiego 152, Poland

Abstract

Methanol adsorption into the porous 2D bimetallic coordination network {[Ni(cyclam)]3[W(CN)8]2}n (cyclam = 1,4,8,11-tetraazacyclotetradecane) causes significant modification of its structure and magnetic properties. Fully reversible transformations between the three states of the network: anhydrous, hydrated and methanol-modified are observed with the transition to the magnetic ordered state at Tc equal to 4.9 K, 8.3 K and 11.4 K respectively. All three phases have a metamagnetic character but the methanol-modified one most easily turns to ferromagnetic and shows a hysteresis loop with coercivity field of 250 Oe. The differences in magnetic behaviour of the anhydrous and guest-induced forms of the compound are discussed in terms of changes in the structure: CN-bridge geometry and distance between the layers.

Graphical abstract: Microporous {[Ni(cyclam)]3[W(CN)8]2}n affording reversible structural and magnetic conversions

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Article information

DOI
https://doi.org/10.1039/C0DT01434F
Article type
Paper
Submitted
21 Oct 2010
Accepted
20 Jan 2011
First published
17 Feb 2011

Dalton Trans., 2011,40, 3067-3073

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Microporous {[Ni(cyclam)]3[W(CN)8]2}n affording reversible structural and magnetic conversions

B. Nowicka, M. Bałanda, B. Gaweł, G. Ćwiak, A. Budziak, W. Łasocha and B. Sieklucka, Dalton Trans., 2011, 40, 3067 DOI: 10.1039/C0DT01434F

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