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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >New 1-D and 3-D thiocyanatocadmates modified by various amine molecules and Cl-/CH3COO- ions: synthesis, structural characterization, thermal behavior and photoluminescence properties
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New 1-D and 3-D thiocyanatocadmates modified by various amine molecules and Cl-/CH3COO- ions: synthesis, structural characterization, thermal behavior and photoluminescence properties

机译：由各种胺分子和Cl- / CH3COO-离子改性的新型1-D和3-D硫氰酸根合酸酯：合成，结构表征，热行为和光致发光性质

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Under ambient conditions, reactions of CdCl2/Cd(CH3COO)(2), SCN- and various organic amine molecules in strongly acidic solutions afforded the five new thiocyanatocadmates [H-2(abpy)][CdCl2(SCN)(2)] (abpy = azobispyridine) 1, [H(apy)][Cd(SCN)(3)] (apy = 4-aminopyridine) 2, [H(ba)](2)[CdCl2(SCN)(2)] (ba = tert-butylamine) 3, [H-2 (tmen)][Cd3Cl6(SCN)(2)] (tmen =N,N,N',N'-tetramethylethylenediamine) 4, and [H(dba)](2)[Cd-2(CH3COO)(2)(SCN)(4)] (dba = dibutylamine) 5. In compound 2 only, the CH3COO- ions in Cd(CH3COO)(2) were completely displaced by SCN-, producing a chained thiocyanatocadmate [Cd(SCN)(3)](-). In the other four compounds, the Cl- or CH3COO- ions appeared in the final inorganic anion frameworks. In compound 1, the Cl- ions doubly bridge the Cd2+ centers, forming a one-dimensional (1-D) infinite chain, and the SCN- group exists in a terminal form, whereas in compound 3, the reverse situation is observed. Due to a trans-mode arrangement for two terminal Cl- or SCN- ions around each Cd2+ center, the inorganic anion chains in compounds 1 and 3 both show a linear shape. In compound 4, Cd2+ and Cl- first aggregate to form a 1-D endless chain with a composition of Cd3Cl6, which can be described as a linear arrangement of the open double cubanes. SCN- serves as the second connector, propagating the Cd3Cl6 chain into a three-dimensional (3-D) network with the occluded H-2(tmen)(2+) cations. In compound 5, the SCN- groups doubly bridge the Cd2+ centers, forming a 1-D zigzag-shape chain. The formation of the zigzag chain likely derives from chelation of the CH3COO- group to the Cd2+ center. The thermal behavior and the photoluminescence properties of the title compounds were also investigated.
机译：在环境条件下，CdCl2 / Cd（CH3COO）（2），SCN-和各种有机胺分子在强酸溶液中的反应提供了五种新的硫氰酸根合酸酯[H-2（abpy）] [CdCl2（SCN）（2）]（ abpy =偶氮二吡啶）1，[H（apy）] [Cd（SCN）（3）]（apy = 4-氨基吡啶）2，[H（ba）]（2）[CdCl2（SCN）（2）]（ba =叔丁胺）3，[H-2（tmen）] [Cd3Cl6（SCN）（2）]（tmen = N，N，N'，N'-四甲基乙二胺）4和[H（dba）]（2 ）[Cd-2（CH3COO）（2）（SCN）（4）]（dba =二丁胺）5.仅在化合物2中，Cd（CH3COO）（2）中的CH3COO-离子被SCN-完全置换，生成链状硫氰基甲酸酯[Cd（SCN）（3）]（-）。在其他四种化合物中，Cl-或CH3COO-离子出现在最终的无机阴离子骨架中。在化合物1中，Cl-离子双重桥接Cd2 +中心，形成一维（1-D）无限链，而SCN-基以末端形式存在，而在化合物3中，观察到相反的情况。由于围绕每个Cd2 +中心的两个末端Cl-或SCN-离子的跨模排列，化合物1和3中的无机阴离子链均呈线性。在化合物4中，Cd2 +和Cl-首先聚集形成具有Cd3Cl6组成的1-D环状链，这可以描述为开放式双古巴人的线性排列。 SCN-用作第二个连接器，将Cd3Cl6链与封闭的H-2（tmen）（2+）阳离子传播为三维（3-D）网络。在化合物5中，SCN-基团双桥Cd2 +中心，形成一维锯齿形链。之字形链的形成可能源自CH3COO-与Cd2 +中心的螯合。还研究了标题化合物的热行为和光致发光性质。

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