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YCu(TeO3)2(NO3)(H2O)3: a novel layered tellurite

机译:YCu(TeO3)2(NO3)(H2O)3:新型层状亚碲酸盐

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A new hydrated yttrium copper tellurite nitrate, yttrium(III) copper(II) bis-[trioxidotellurate(IV)] nitrate trihydrate, has been synthesized hydro-thermally in a Teflon-lined autoclave and structurally determined using synchrotron radiation. The new phase is the first example containing yttrium, copper and tellurium in one structure. Its crystal structure is unique, with relatively strongly bound layers extending parallel to (020), defined by YO8, CuO4 and TeO3 polyhedra, while the NO3? anions and one third of the water mol-ecules lie between those layers. The structural unit consists of [Cu2(TeO3)4]4? loop-branched chains of {Cu?Te?Cu?Te} squares running parallel to [001], which are linked further into layers only through Y(O,H2O)8 polyhedra. Weak `secondary' Te bonds and O—H?O hydrogen-bonding inter-actions, involving water mol-ecules and layer O atoms, link the layers and inter-layer species. IR spectroscopic data are also presented.
机译:一种新型水合硝酸亚硝酸钇铜铜,三水合钇-(III)硝酸铜双-[[三氧化telltellate(IV)]硝酸三水合],并通过同步加速器辐射在结构上确定。新相是在一个结构中包含钇,铜和碲的第一个示例。它的晶体结构是独特的,具有牢固结合的层平行于(020)延伸,由YO8,CuO4和TeO3多面体定义,而NO3?阴离子和三分之一的水分子位于这些层之间。结构单元由[Cu2(TeO3)4] 4?构成。平行于[001]延伸的{Cu?Te?Cu?Te}正方形的环支链,仅通过Y(O,H2O)8多面体进一步连接成层。弱的“次级” Te键和O-H?O氢键相互作用,包括水分子和O原子层,将各层和层间物质联系在一起。还提供了红外光谱数据。

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