A Series of Lanthanide(III)-bpdo-Octacyanotungstate(V) Compounds (bpdo=4,4 '-Bipyridine-N,N '-dioxide) Involving the Structural Transformation from Ion Pair to Three-Dimensional Pillared Layer via a Two-Dimensional Layer
A Series of Lanthanide(III)-bpdo-Octacyanotungstate(V) Compounds (bpdo=4,4 '-Bipyridine-N,N '-dioxide) Involving the Structural Transformation from Ion Pair to Three-Dimensional Pillared Layer via a Two-Dimensional Layer
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DOI：
10.1021/acs.cgd.7b01196
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发表时间：
2017
影响因子：
3.8
通讯作者：
Song You
中科院分区：
文献类型：
--
作者：
Zhou Hu;Chen Qi;Yuan Ai-Hua;Zhou Hong-Bo;Shen Xiao-Ping;Chen Lei;Song You
The slow diffusion reaction of octacyanometalate [W(CN)8]3–, lanthanide ions, and 4,4′-bipyridyl-N,N′-dioxide (bpdo) has generated a series of isostructural three-dimensional pillared-layer networks with general formula [Ln(bpdo)1.5(H2O)W(CN)8]·0.5CH3OH·6H2O (Ln = Dy–Yb, Gd), in which Ln(III) atoms adopted an unusual seven-coordinated geometry in the cyanometalate-based lanthanide system. This building approach on the basis of the simultaneous employment of cyanide and bpdo bridges offers potential possibilities for designing and constructing 5d-4f coordination networks with high dimensionalities. Interestingly, the LnIII-bpdo-WV(CN)8system has undergone an unique two-step phase transition upon prolonging the diffusion reaction time, together with the structural changing from initial ion pair through two-dimensional layer to final three-dimensional pillared-layer network. Magnetic studies of all compounds revealed typical and dominant single-ion magnetic behaviors over the weak coupling interactions between spin centers.
