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Article: Synthesis, structure and magnetic property of a new organo-templated mixed-valent iron(ii, iii) borophosphate

TitleSynthesis, structure and magnetic property of a new organo-templated mixed-valent iron(ii, iii) borophosphate
Authors
KeywordsHydrogen
Hydrogen Bonds
Hysteresis
Iron Oxides
Magnetic Materials
Magnetic Properties
Molybdenum
Three Dimensional
X Ray Diffraction
Issue Date2009
PublisherRoyal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/Publishing/Journals/jm/index.asp
Citation
Journal of Materials Chemistry, 2009, v. 19 n. 26, p. 4523-4528 How to Cite?
AbstractA new layered iron borophosphate (C4N3H 16)(C4N3H15)0.5[Fe 2B4P7O26(OH)4] (denoted FeBPO-CJ28), with a novel B/P ratio of 4/7 and mixed-valent iron(ii, iii) was prepared under mild hydrothermal conditions in the presence of diethylenetriamine (DETA) as the template. Its crystal structure was determined by single-crystal X-ray diffraction (triclinic, P1 (No. 2), a = 8.9568(3) , b = 9.8717(3) , c = 17.9905(5) , α = 102.510(2)°, β = 92.343(2)°, γ = 100.403(2)°, V = 1522.10(8) 3, and Z = 2). The structure comprises unprecedented anionic double layers 2∞{[Fe 2B4P7O26(OH)4] 4-} with one-dimensional 8-ring channels along the [110] direction, which are made up of FeO6, BO4, PO4 and HPO4 polyhedral units. Such double layers parallel to the ab plane are connected by inter-layer hydrogen bonds forming the three-dimensional (3D) supramolecular open framework with pseudo 10-ring channels along the [110] direction. Protonated DETA cations locate in the 8-ring channels and pseudo 10-ring channels to compensate the negative charge of the anionic framework. The structure is featured by a new fundamental building unit (FBU) [B 4P7O26(OH)4], which is the largest one of the borophosphate anionic partial structures. The compound is further characterized by powder XRD, ICP, CHN, TGA and Mössbauer spectroscopy analysis. The magnetic measurement reveals that FeBPO-CJ28 exhibits ferrimagnetic behavior below 9.6 K with a hysteresis loop at 2 K (HC = 2800 Oe, MR = 0.21 B). © 2009 The Royal Society of Chemistry.
Persistent Identifierhttp://hdl.handle.net/10722/92067
ISSN
2013 Impact Factor: 6.626
ISI Accession Number ID
Funding AgencyGrant Number
National Natural Science Foundation of China
State Basic Research Project of China2006CB806103
2007CB936402
Major International Joint Research Project of China
Funding Information:

This work is supported by the National Natural Science Foundation of China, the State Basic Research Project of China (Grants: 2006CB806103 and 2007CB936402) and the Major International Joint Research Project of China.

References

 

DC FieldValueLanguage
dc.contributor.authorYang, Wen_HK
dc.contributor.authorLi, Jen_HK
dc.contributor.authorPan, Qen_HK
dc.contributor.authorXing, Hen_HK
dc.contributor.authorChen, Yen_HK
dc.contributor.authorYu, Jen_HK
dc.contributor.authorXu, Ren_HK
dc.date.accessioned2010-09-17T10:35:06Z-
dc.date.available2010-09-17T10:35:06Z-
dc.date.issued2009en_HK
dc.identifier.citationJournal of Materials Chemistry, 2009, v. 19 n. 26, p. 4523-4528en_HK
dc.identifier.issn0959-9428en_HK
dc.identifier.urihttp://hdl.handle.net/10722/92067-
dc.description.abstractA new layered iron borophosphate (C4N3H 16)(C4N3H15)0.5[Fe 2B4P7O26(OH)4] (denoted FeBPO-CJ28), with a novel B/P ratio of 4/7 and mixed-valent iron(ii, iii) was prepared under mild hydrothermal conditions in the presence of diethylenetriamine (DETA) as the template. Its crystal structure was determined by single-crystal X-ray diffraction (triclinic, P1 (No. 2), a = 8.9568(3) , b = 9.8717(3) , c = 17.9905(5) , α = 102.510(2)°, β = 92.343(2)°, γ = 100.403(2)°, V = 1522.10(8) 3, and Z = 2). The structure comprises unprecedented anionic double layers 2∞{[Fe 2B4P7O26(OH)4] 4-} with one-dimensional 8-ring channels along the [110] direction, which are made up of FeO6, BO4, PO4 and HPO4 polyhedral units. Such double layers parallel to the ab plane are connected by inter-layer hydrogen bonds forming the three-dimensional (3D) supramolecular open framework with pseudo 10-ring channels along the [110] direction. Protonated DETA cations locate in the 8-ring channels and pseudo 10-ring channels to compensate the negative charge of the anionic framework. The structure is featured by a new fundamental building unit (FBU) [B 4P7O26(OH)4], which is the largest one of the borophosphate anionic partial structures. The compound is further characterized by powder XRD, ICP, CHN, TGA and Mössbauer spectroscopy analysis. The magnetic measurement reveals that FeBPO-CJ28 exhibits ferrimagnetic behavior below 9.6 K with a hysteresis loop at 2 K (HC = 2800 Oe, MR = 0.21 B). © 2009 The Royal Society of Chemistry.en_HK
dc.languageengen_HK
dc.publisherRoyal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/Publishing/Journals/jm/index.aspen_HK
dc.relation.ispartofJournal of Materials Chemistryen_HK
dc.subjectHydrogenen_HK
dc.subjectHydrogen Bondsen_HK
dc.subjectHysteresisen_HK
dc.subjectIron Oxidesen_HK
dc.subjectMagnetic Materialsen_HK
dc.subjectMagnetic Propertiesen_HK
dc.subjectMolybdenumen_HK
dc.subjectThree Dimensionalen_HK
dc.subjectX Ray Diffractionen_HK
dc.titleSynthesis, structure and magnetic property of a new organo-templated mixed-valent iron(ii, iii) borophosphateen_HK
dc.typeArticleen_HK
dc.identifier.emailChen, Y:ychenc@hkucc.hku.hken_HK
dc.identifier.authorityChen, Y=rp1318en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1039/b820130gen_HK
dc.identifier.scopuseid_2-s2.0-67649726154en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-67649726154&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume19en_HK
dc.identifier.issue26en_HK
dc.identifier.spage4523en_HK
dc.identifier.epage4528en_HK
dc.identifier.eissn1364-5501-
dc.identifier.isiWOS:000267439500010-

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