Iron arsenate frameworks
Wiggin, Seth B., Hughes, Robert W., Price, Daniel J. and Weller, Mark T. (2007) Iron arsenate frameworks. Dalton Transactions, (27), 2935-2941. (doi:10.1039/b702847d).
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Description/Abstract
Six new iron arsenate framework structures, Fe2As2O7·2H2O, [Fe6As8O32H4]2–(1,4-butanediamininium2+)·2H2O, [Fe4As6O22H2]2–(piperazinium2+), [Fe5As5O24H4]2–(piperazinium2+)·2H2O, [Fe6As7O31H5]2–(dabco2+) and LiFeAsO4OH have been synthesised under hydrothermal conditions. Incorporation of the amine cation templates leads to more open framework geometries and, in contrast to iron phosphates which have topologies based on PO4 tetrahedra, the iron arsenate structures typically contain protonated As(O,OH)4 units. The magnetic properties of the iron arsenates studied show Curie–Weiss behaviours with maxima in the (T) vs.T plots in the range 10–50 K.
| Item Type: | Article |
|---|---|
| ISSNs: | 1477-9226 (print) |
| Related URLs: | |
| Keywords: | magnetic-properties, exchange, layer structure, crystal-structure, metal arsenates, phosphate, hydrothermal synthesis, architecture, diarsenates, oxalate |
| Subjects: | Q Science > QD Chemistry |
| Divisions: | University Structure - Pre August 2011 > School of Chemistry |
| Item ID: | 54406 |
| Date Deposited: | 31 Jul 2008 |
| Last Modified: | 01 Jun 2011 09:27 |
| Contributors: | Wiggin, Seth B. (Author) Hughes, Robert W. (Author) Price, Daniel J. (Author) Weller, Mark T. (Author) |
| Date: | 2007 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/54406 |
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