Magnetic Phase Transitions In A Ni4o4-Cubane-Based Metal-Organic Framework

Muhammad Arif Nadeem, Maggie Chai Cin Ng,Jan Van Leusen,Paul Koegerler,John Arron Stride

CHEMISTRY-A EUROPEAN JOURNAL（2020）

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摘要

An unprecedented spin cluster-based network architecture {[Ni-2(II)(pdaa)(OH)(2)(H2O)](n) (H(2)pdaa=1,4-phenylene diacetic acid)}, comprising 1D linear chains of Ni-II ions crosslinked via Ni4O4 cubanes, forms under hydrothermal conditions; this 3D coordination network exhibits magnetic ordering at 23.9 K as well as a second magnetic ordering process at 2.8 K likely associated with a structural phase transition.

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关键词

cubanes,magnetic materials,metal-organic frameworks,nickel,phase transitions

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