Amine-templated one-dimensional metal sulfates including a mixed-Valent Fe compound with a half-kagome structure

Behera, J. N. ; Rao, C. N. R. (2006) Amine-templated one-dimensional metal sulfates including a mixed-Valent Fe compound with a half-kagome structure Chemistry - An Asian Journal, 1 (5). pp. 742-750. ISSN 1861-4728

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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/asia.20...

Related URL: http://dx.doi.org/10.1002/asia.200600083

Abstract

Organically templated metal sulfates are relatively new. Six amine-templated transition-metal sulfates with different types of chain structures, including a novel iron sulfate with a chain structure corresponding to one half of the kagome structure, were synthesized by hydro/solvothermal methods. Amongst the one-dimensional metal sulfates, [C10N2H10][Zn(SO4)Cl2] (1) is the simplest, being formed by corner-linked ZnO2Cl2 and SO4 tetrahedra. [C6N2H18][Mn(SO4)2(H2O)2] (2) and [C2N2H10][Ni(SO4)2(H2O)2] (3) have ladder structures comprising four-membered rings formed by SO4 tetrahedra and metal-oxygen octahedra, just as in the mineral kröhnkite. [C4N2H12][VIII(OH)(SO4)2]·H2O (4) and [C4N2H12][VF3(SO4)] (5) exhibit chain topologies of the minerals tancoite and butlerite, respectively. The structure of [C4N2H12][H3O][FeIIIFeII F6(SO4)] (6) is noteworthy in that it corresponds to half of the hexagonal kagome structure. It exhibits ferrimagnetic properties at low temperatures and the absence of frustration, unlike the mixed-valent iron sulfate with the full kagome structure.

Item Type:Article
Source:Copyright of this article belongs to John Wiley and Sons.
Keywords:Crystal Engineering; Half-kagome Structures; Iron; Metal Sulfates; One-dimensional Chains
ID Code:39997
Deposited On:20 May 2011 13:28
Last Modified:20 May 2011 13:28

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