Issue 34, 2008
From the journal:

Dalton Transactions

Synthesis and characterization of nona- and trideca-nuclear manganese phosphonate clusters†

Mei Wang,ab   Chengbing Maa  and  Changneng Chen*a  

* Corresponding authors

a State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, The Chinese Academy of Sciences, Fuzhou, Fujian, China
E-mail: ccn@fjirsm.ac.cn
Fax: +86 591 83792395

b Graduate School of the Chinese Academy of Sciences, Beijing, China

Abstract

Two new Mn(III) complexes with unprecedented topologies containing the tert-butylphosphonate ligand (t-BuPO32−), [Mn9O6(t-BuPO3)2(O2CMe)11(MeCOOH)(H2O)]·8H2O (1), and [NBun4][Mn13O6(t-BuPO3)10(OH)2(N3)6(MeCOOH)2(H2O)2]·6H2O (2) have been prepared by treatment of Mn(O2CMe)2 and NBun4MnO4 with tert-butylphosphonic acid in the presence of different bases. The core of 1 consists of two [Mn3O] units connected to a near linear [Mn3] unit by four μ3-O, while the core of 2 possesses a Mn centred disklike [Mn7O6] unit linked to six additional manganese atoms via six μ4-O. Compounds 1 and 2 are both homovalent manganese(III) cage clusters, of which the six-coordinated Mn centers are all Jahn–Teller distorted. Magnetic susceptibility measurements reveal that compounds 1 and 2 display overall ferromagnetic and antiferromagnetic interactions, respectively, between the adjacent MnIII ions. Both the in-phase signal χ′MT and out-of-phase signal χ″M of the two complexes exhibit frequency-dependence below approximately 3 K.

Graphical abstract: Synthesis and characterization of nona- and trideca-nuclear manganese phosphonate clusters

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Article information

DOI
https://doi.org/10.1039/B804532A
Article type
Paper
Submitted
17 Mar 2008
Accepted
27 May 2008
First published
10 Jul 2008

Dalton Trans., 2008, 4612-4620

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Synthesis and characterization of nona- and trideca-nuclear manganese phosphonate clusters

M. Wang, C. Ma and C. Chen, Dalton Trans., 2008, 4612 DOI: 10.1039/B804532A

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