Open-shell channel-like salts formed by the supramolecular assembly of a tricarboxylated perchlorotriphenylmethyl radical and a [Co(bpy)3]2+ cation

Daniel Maspoch; Daniel Ruiz-Molina; Klaus Wurst; Gavin Vaughan; Neus Domingo; Javier Tejada; Concepció Rovira; Jaume Veciana

doi:10.1039/B410810H

Open-shell channel-like salts formed by the supramolecular assembly of a tricarboxylated perchlorotriphenylmethyl radical and a [Co(bpy)₃]²⁺cation

Daniel Maspoch,^a Daniel Ruiz-Molina,^a Klaus Wurst,^b Gavin Vaughan,^c Neus Domingo,^d Javier Tejada,^d Concepció Rovira^a and Jaume Veciana*^a

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* Corresponding authors

^a Institut de Ciència de Materials de Barcelona (CSIC), Campus Universitari UAB, 08193 Bellaterra, Catalonia, Spain
E-mail: vecianaj@icmab.es
Fax: 34 93 5805729
Tel: 34 93 580 1853

^b Institut für Allgemeine Anorganische und Theoretische Chemie, Universität Innsbruck, A-6020, Innrain 52a, Austria

^c European Sinchrotron Radiation Facility (E.S.R.F.), B. P. 220, F - 38043 Grenoble cedex, France

^d Facultad de Física, Universitat de Barcelona, Diagonal 647, 08028-Barcelona, Spain

Abstract

The crystal structure of two open-framework ionic salts, namely [Co(bpy)₃]₃[PTMTC]₂·(7 + x)H₂O (1) and [Co(bpy)₃][PTMTCH]·29.5H₂O (2), formed by the supramolecular arrangement of a polycarboxylate perchlorinated triphenylmethyl radical and a [Co(bpy)₃]²⁺ cation have been determined. The absence of interpenetration in both frameworks shows large solvent-filled nanochannels with different shapes and sizes. The dimensions of these channels are 11 × 23 and 7 × 12 Å in 1 and 2, respectively. Furthermore, since both building blocks have a paramagnetic character, salts 1 and 2 present magnetic properties reflected by the presence of weak antiferromagnetic interactions.

Article information

https://doi.org/10.1039/B410810H

Article type

Paper

Submitted

15 Jul 2004

Accepted

15 Oct 2004

First published

27 Oct 2004

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CrystEngComm, 2004,6, 573-578

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Open-shell channel-like salts formed by the supramolecular assembly of a tricarboxylated perchlorotriphenylmethyl radical and a [Co(bpy)₃]²⁺ cation

D. Maspoch, D. Ruiz-Molina, K. Wurst, G. Vaughan, N. Domingo, J. Tejada, C. Rovira and J. Veciana, CrystEngComm, 2004, 6, 573 DOI: 10.1039/B410810H

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