Synthesis and structure of Na+ intercalated WO3(4,4'-bipyridyl)0.5
Synthesis and structure of Na+ intercalated WO3(4,4'-bipyridyl)0.5
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钠插层WO3(4,4-联吡啶)0.5的合成与结构
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
J. Tallon
中科院分区：
文献类型：
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作者：
Islah Udin;M. R. Fox;H. Martin;G. Gainsford;J. Kennedy;A. Markwitz;S. Telfer;G. Jameson;J. Tallon
我们制备了WO_3（4，4 ′-bipyridine）_（0.5）单晶，并对其进行了Na离子注入掺杂。所得NaxWO 3（4，4 '-联吡啶）0.5的结构通过单晶X射线衍射确定为包含通过4，4'-联吡啶经由顶端氮连接的角共享的WO 5 N八面体的原子层。在所观察到的空间群的Pbca，完全有序的联吡啶分子定义笼形结构，而不是以前错误地报道的Cmca多晶型物的通道。钠离子是无序双峰的笼中心，在c方向位移，以便更接近顶端的氧。
We have prepared single crystals of WO3(4,4'-bipyridyl)0.5 and doped these by Na-ion implantation. The structure of the resultant NaxWO3(4,4'-bipyridyl)0.5 was determined by single-crystal x-ray diffraction to comprise atomic layers of corner-shared WO5N octahedra linked by the 4,4'-bypyridine via the apical nitrogen. In the observed space group of Pbca, the fully ordered bipyridyl molecules define cage-shaped structures, not the channels erroneously reported previously for the Cmca polymorph. The Na ions are disordered bimodally about the cage centre, displaced in the c-direction so as to lie closer to the apical oxygens.