The vanadosilicate zeolite AM-6 is shown by a combination of spectroscopic techniques (UV-vis, Raman, XPS, XAS and EPR) to contain linear chains of alternating V=O and V-O bonds. The V(IV) ions in these chains are ferromagnetically coupled, and an excellent fit a to the susceptibility data with a one-dimensional Heisenberg model is obtained with J = 0.66(1) cm(-1). AM-6 is thus the first reported example of a microporous material incorporating one-dimensional ferromagnetic chains.

AM-6: a microporous one-dimensional ferromagnet

BONINO, Francesca Carla;BORDIGA, Silvia;DAMIN, Alessandro Ali
2009

Abstract

The vanadosilicate zeolite AM-6 is shown by a combination of spectroscopic techniques (UV-vis, Raman, XPS, XAS and EPR) to contain linear chains of alternating V=O and V-O bonds. The V(IV) ions in these chains are ferromagnetically coupled, and an excellent fit a to the susceptibility data with a one-dimensional Heisenberg model is obtained with J = 0.66(1) cm(-1). AM-6 is thus the first reported example of a microporous material incorporating one-dimensional ferromagnetic chains.
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http://www.rsc.org/publishing/journals/DT/article.asp?doi=b908099f
TITANOSILICATE ETS-10; MAGNETIC-PROPERTIES; VANADIUM SILICATES; MOLECULAR-SIEVE; QUANTUM WIRES; SPECTROSCOPY
R. M. Yeates; M. J. Murdoch; P. D. Southon; A. C. McLaughlin; R. F. Howe; F. Bonino; S. Bordiga; A. Damin
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/66424
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