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Indexed by:期刊论文

Date of Publication:2011-06-01

Journal:INORGANIC CHEMISTRY COMMUNICATIONS

Included Journals:SCIE

Volume:14

Issue:6

Page Number:889-892

ISSN No.:1387-7003

Key Words:Heterometallic MOFs; Rod-shaped MBBs; Hydrothermal synthesis; Magnetic properties

Abstract:The hydrothermal reaction of Ln(III) nitrate, Mn(II) sulfate hydrate with 5-nitroisophthalic acid (H(2)NIPH) produced two novel metal organic frameworks (MOFs), [Ln(2)Mn(NIPH)(4)(H(2)O)(4)]center dot 6H(2)O [Ln = Eu (1), Nd (2)], which represent the first examples of three-dimensional Ln(III)-Mn(II) heterometallic MOFs based on rod-shaped molecular building blocks (MBBs). In the structures, two LnO(9) polyhedra and one MnO(6) polyhedron are bridged in a corner-sharing fashion to form a trinuclear unit [Ln(2)MnO(20)], which is further connected to each other by carboxylate groups to give a [Eu(2)MnO(20)]-(O-C-O)(2)-[Eu(2)MnO(20)] heterometallic rod. The thermal properties and magnetic properties of 1 and 2 have been investigated in the solid state. (C) 2011 Elsevier B.V. All rights reserved.