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  • Title: Cobalt diphosphonate with a new double chain structure exhibiting field-induced magnetic transition.
    Author: Zhang ZC, Gao S, Zheng LM.
    Journal: Dalton Trans; 2007 Nov 07; (41):4681-4. PubMed ID: 17940649.
    Abstract:
    A cobalt diphosphonate Co(H(2)O){C(5)H(5)N-CH(2)CH(OH)(PO(3))(PO(3)H)} (1) has been synthesized under hydrothermal conditions. It shows a novel type of double chain structure in which one of the two CPO(3) terminus caps on top of the {Co(2)(micro-O)2} dimer while the other connects the adjacent {Co(2)(micro-O)2} dimers into a chain. The magnetization measurements reveal that dominant antiferromagnetic interactions are mediated between the magnetic centers and the compound experiences a field-induced magnetic transition at low temperature with H(c) of ca. 15 kOe at 1.8 K.
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