Synthesis, structure and magnetic properties of the one-dimensional bimetallic oxide [Cu(terpy)Mo₂O₇]

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• 作者：Eric Burkholder ; N. Gabriel Armatas ; Vladimir Golub ; Charles J. O&#x2019 ; Connor and Jon Zubieta
• 关键词：Copper molybdate ; Organic&#x2013 ; inorganic hybrid material ; One-dimensional bimetallic oxide ; Alternating antiferromagnetic Heisenberg chain
• 刊名：Journal of Solid State Chemistry
• 出版年：2005
• 出版时间：2005
• 年：2005
• 卷：178
• 期：10
• 页码：3145-3151
• 全文大小：329 K

文摘

The hydrothermal reaction of Cu(CH₃CO₂)₂·H₂O, Na₂MoO₄ and terpyridine at 140 °C for 48 h yields [Cu(terpy)Mo₂O₇] (1), a bimetallic one-dimensional oxide. The structure consists of ruffled chains of edge- and corner-sharing {MoO₅} square pyramids, decorated with {CuN₃O₂} ‘4+1’ axially distorted square pyramids. The Cu(II) polyhedra are disposed so as to produce an alternating pattern of Cu–Cu distances across the {Mo₂O₂} rhombi of the chain of 6.25 and 6.82 Å. This structural feature is reflected in the magnetic properties which are characteristic of a dimer rather than a linear chain, consistent with an alternating antiferromagnetic Heisenberg chain.