AM-6: a microporous one-dimensional ferromagnet.
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.
Yeates
Rachel M
RM
Department of Chemistry, University of Aberdeen, Meston Walk, Aberdeen, UK AB24 3UE.
Murdoch
Morag J
MJ
Southon
Peter D
PD
McLaughlin
Abbie C
AC
Howe
Russell F
RF
Bonino
Francesca
F
Bordiga
Silvia
S
Damin
Alessandro
A
D018360:Crystallography, X-Ray; D005290:Ferric Compounds / Q000737:chemistry*; D059346:Magnets; D010084:Oxidation-Reduction; D017640:Silicates / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D013059:Spectrum Analysis, Raman; D017968:Vanadium Compounds / Q000737:chemistry*; D017641:Zeolites / Q000737:chemistry*
D005290:Ferric Compounds; D017640:Silicates; D017968:Vanadium Compounds; C001215:ferrite; D017641:Zeolites