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ChemInform Abstract: New Types of Heterometallic 3d—4f Rhomblike Core in Weakley-Like Polyoxometalates.

✍ Scribed by Santiago Reinoso; Jose Ramon Galan-Mascaros; Luis Lezama

Publisher
John Wiley and Sons
Year
2011
Weight
23 KB
Volume
42
Category
Article
ISSN
0931-7597

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✦ Synopsis

New Types of Heterometallic 3d-4f Rhomblike Core in Weakley-Like Polyoxometalates. -Cs3K4Na4[{Ce(OAc)}Cu3(H2O)(B-α-GeW9O34)2]•≈20H2O is synthesized from a suspension of K12[Cu4(H2O)2(GeW9O34)2], Ce(NH4)2(NO3)6, and CsCl in aqueous AcOH/NaOAc buffer solution (room temperature, 29% yield). The compound crystallizes in the triclinic space group P1 with Z = 2 (single crystal XRD). Its anion contains a central {Ce IV O 18 } rhomblike cluster belonging to a new type. The cluster behaves magnetically as a triangular Cu3 system whose overall antiferromagnetic exchange is affected by the structural distortions induced by the vicinity of diamagnetic

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