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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Influence of the organic species and oxoanion in the synthesis of two uranyl sulfate hydrates, (H _3O) _2[(UO _2) 2(SO _4) _3(H _2O)]7H 2O and (H3O)2[(UO2)2(SO4)3(H2O)]4H 2O, and a Uranyl Selenate-Selenite [C5H6N][(UO2)(SeO4)(HSeO3)]
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Influence of the organic species and oxoanion in the synthesis of two uranyl sulfate hydrates, (H _3O) _2[(UO _2) 2(SO _4) _3(H _2O)]7H 2O and (H3O)2[(UO2)2(SO4)3(H2O)]4H 2O, and a Uranyl Selenate-Selenite [C5H6N][(UO2)(SeO4)(HSeO3)]

机译：有机物和含氧阴离子对两种硫酸铀酰水合物（H _3O）_2 [（UO _2）2（SO _4）_3（H _2O）] 7H 2O和（H3O）2 [（UO2）2（ SO4）3（H2O）] 4H 2O和铀酰硒酸亚硒酸盐[C5H6N] [（UO2）（SeO4）（HSeO3）]

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Two uranyl sulfate hydrates, (H _3O) _2[(UO _2) _2(SO _4) _3(H _2O)] ·7H _2O (NDUS) and (H _3O) _2[(UO _2) _2(SO _4) _3(H _2O)] ·4H _2O (NDUS1), and one uranyl selenate-selenite [C _5H _6N][(UO _2)(SeO _4)(HSeO _3)] (NDUSe), were obtained and their crystal structures solved. NDUS and NDUSe result from reactions in highly acidic media in the presence of L-cystine at 373 K. NDUS crystallized in a closed vial at 278 K after 5 days and NDUSe in an open beaker at 278 K after 2 weeks. NDUS1 was synthesized from aqueous solution at room temperature over the course of a month. NDUS, NDUS1, and NDUSe crystallize in the monoclinic space group P2 _1, a = 15.0249(4) ?,b = 9.9320(2) ?, c = 15.6518(4) ?, β = 112.778(1)°, V = 2153.52(9) ? ~3,Z = 4, the tetragonal space group P4 _32 _12, a = 10.6111(2) ?,c = 31.644(1) ?, V = 3563.0(2) ? ~3, Z = 8, and in the monoclinic space group P2 _1, a = 8.993(3) ?, b = 13.399(5) ?, c = 10.640(4) ?,β = 108.230(4)°, V = 1217.7(8) ? ~3, Z = 4, respectively.The structural units of NDUS and NDUS1 are two-dimensional uranyl sulfate sheets with a U/S ratio of 2/3. The structural unit of NDUSe is a two-dimensional uranyl selenate-selenite sheets with a U/Se ratio of 1/2. In-situ reaction of the L-cystine ligands gives two distinct products for the different acids used here. Where sulfuric acid is used, only H _3O ~+ cations are located in the interlayer space, where they balance the charge of the sheets, whereas where selenic acid is used, interlayer C _5H _6N ~+ cations result from the cyclization of the carboxyl groups of L-cystine, balancing the charge of the sheets.
机译：两种硫酸铀酰水合物，（H _3O）_2 [（UO _2）_2（SO _4）_3（H _2O）]·7H _2O（NDUS）和（H _3O）_2 [（UO _2）_2（SO _4）_3（ H _2O）]·4H _2O（NDUS1），和一种铀酰硒酸盐-硒酸盐[C _5H _6N] [（UO _2）（SeO _4）（HSeO _3）]（NDUSe），获得了晶体结构。 NDUS和NDUSe是在373 K下存在L-胱氨酸的情况下在高酸性介质中反应产生的结果。NDUS在5天后于278 K的封闭小瓶中结晶，而在2周后于278 K于敞口烧杯中的NDUSe结晶。 NDUS1是在室温下一个月内从水溶液中合成的。 NDUS，NDUS1和NDUSe在单斜空间群P2 _1 / n中结晶，a = 15.0249（4）β，b = 9.9320（2）α，c = 15.6518（4）α，β= 112.778（1）°，V = 2153.52（9）？ 〜3，Z = 4，方形空间群P4 _32 _12，a = 10.6111（2）α，c = 31.644（1）α，V = 3563.0（2）α 〜3，Z = 8，在单斜空间群P2 _1 / n中，a = 8.993（3）α，b = 13.399（5）α，c = 10.640（4）β，β= 108.230（4）°， V = 1217.7（8）？ 〜3，Z = 4，NDUS和NDUS1的结构单元是二维硫酸铀酰片材，U / S比为2/3。 NDUSe的结构单元是U / Se比为1/2的二维铀酰硒酸亚硒酸盐片。 L-胱氨酸配体的原位反应为此处使用的不同酸提供了两种不同的产物。在使用硫酸的情况下，只有H _3O〜+阳离子位于层间空间中，在其中它们平衡薄片的电荷，而在使用硒酸的情况下，层间C _5H _6N〜+阳离子是由羧基的环化产生的L-胱氨酸，平衡床单的电荷。

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