Issue 10, 2007
From the journal:

Journal of Materials Chemistry

Synthesis, structure and magnetic properties of an inorganic–organic hybrid compound†

Sukhendu Mandal,a   Mark A. Green,b   Swapan K. Pati*c  and  Srinivasan Natarajan*a  

* Corresponding authors

a Framework Solids Laboratory, Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore 560 012, India
E-mail: snatarajan@sscu.iisc.ernet.in

b The Davy-Faraday Research Laboratory, The Royal Institution of Great Britain, 21 Albemarle Street, London, UK

c Theoretical Sciences Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bangalore 560 064, India
E-mail: pati@jncasr.ac.in

Abstract

Hydrothermal reaction of a mixture of MnC2O4, H3PO3, piperazine and water at 423 K for 72 h resulted in a new inorganic–organic hybrid phase, [C4N2H12][MnII2(HPO3)2(C2O4)], I. The structure comprises a network of Mn2O10 dimers, HPO3 psuedo-tetrahedra and oxalate units, connected through their vertices forming a three-dimensional structure with one-dimensional channels. Protonated piperazine molecules are found in the channels. The formation of Mn(HPO3)∞ layers using only one type of secondary building unit, SBU-4, is noteworthy. Detailed magnetic investigations reveal that the antiferromagnetic layers are coupled in such a way to show magnetic polarizations on application of high magnetic field at low temperatures. This is unique and to the best of our knowledge has been observed for the first time in an open-framework solid.

Graphical abstract: Synthesis, structure and magnetic properties of an inorganic–organic hybrid compound

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Article information

DOI
https://doi.org/10.1039/B614186B
Article type
Paper
Submitted
29 Sep 2006
Accepted
27 Nov 2006
First published
15 Dec 2006

J. Mater. Chem., 2007,17, 980-985

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Synthesis, structure and magnetic properties of an inorganic–organic hybrid compound

S. Mandal, M. A. Green, S. K. Pati and S. Natarajan, J. Mater. Chem., 2007, 17, 980 DOI: 10.1039/B614186B

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