Issue 2, 2005
From the journal:

Dalton Transactions

Hybrid materials containing organometallic cations and 3-D anionic metal dicyanamide networks of type [Cp*2M][M′(dca)3]

Patricia M. Van der Werff,a   Eugenia Martínez-Ferrero,b   Stuart R Batten,b   Paul Jensen,c   Catalina Ruiz-Pérez,d   Manuel Almeida,e   Joao C. Waerenborgh,e   John D. Cashion,f   Boujemaa Moubaraki,a   José Ramón Galán-Mascarós,b   José María Martínez-Agudo,b   Eugenio Coronado*b  and  Keith S. Murray*a  

* Corresponding authors

a School of Chemistry, Building 23, Monash University, Victoria, Australia
E-mail: keith.murray@sci.monash.edu.au
Fax: 61399054597
Tel: 61399054512

b Instituto de Ciencia Molecular, Universidad de Valencia, Dr. Moliner, 50, Burjassot, Spain

c Department of Chemistry, Trinity College, Dublin 2, Ireland

d Laboratorio de Rayos X y Materiales Moleculares, Departamento de Física Fundamental II, Universidad de La Laguna, Avda. Francisco Sanches sw/n, La Laguna, Tenerife, Spain

e Dept. Química, ITN/CFMC-UL, Sacavém, Portugal

f School of Physics and Materials Engineering, Building 27, Monash University, Victoria, Australia

Abstract

A new series of hybrid materials of type [Cp*2M][M′(dca)3] has been prepared by cation templation and structurally characterised (M = Fe(III), Co(III); M′ = Mn(II), Fe(II), Co(II), Ni(II), Cd(II); dca− = N(CN)2−). The crystallographic analysis of [Cp*2Fe][Cd(dca)3] showed that the [Cd(dca)3]− anionic framework is of a symmetrical 3-D α-polonium type, containing octahedral Cd nodes and μ1,5-dca bridging ligands. The [Cp*2Fe]+ cations occupy the cube-like cavities within the framework. The cationic and anionic-framework sublattices remain magnetically independent and display susceptibilities, over the range 300 to 2 K, of a Curie–Weiss nature obtained by adding a S = 1/2 (Cp*2Fe+) or a S = 0 (Cp*2Co+) contribution to those of the weakly antiferromagnetically coupled frameworks of M′. These hybrid species do not show any intrinsic long-range magnetic order. The present [Cp*2Fe][M′(dca)3] series display the characteristic, unusually shaped [Cp*2Fe]+ Mössbauer line, in the range 295–5 K, assigned (below 101 K) as the sum of a narrow and a broad line. Relaxation effects were evident. The [Fe(dca)3]− compound showed superimposed low-spin Fe(III) and high-spin Fe(II) lines, the latter giving relaxation broadening effects.

Graphical abstract: Hybrid materials containing organometallic cations and 3-D anionic metal dicyanamide networks of type [Cp*2M][M′(dca)3]

About
Cited by
Related
Download options Please wait...

Article information

DOI
https://doi.org/10.1039/B415275A
Article type
Paper
Submitted
01 Oct 2004
Accepted
19 Nov 2004
First published
03 Dec 2004

Dalton Trans., 2005, 285-290

Permissions

Request permissions

Hybrid materials containing organometallic cations and 3-D anionic metal dicyanamide networks of type [Cp*2M][M′(dca)3]

P. M. Van der Werff, E. Martínez-Ferrero, S. R. Batten, P. Jensen, C. Ruiz-Pérez, M. Almeida, J. C. Waerenborgh, J. D. Cashion, B. Moubaraki, J. R. Galán-Mascarós, J. M. Martínez-Agudo, E. Coronado and K. S. Murray, Dalton Trans., 2005, 285 DOI: 10.1039/B415275A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements