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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Synthesis and Effects of Heat Treatments on Luminescence Behavior of a Templated Borate
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Synthesis and Effects of Heat Treatments on Luminescence Behavior of a Templated Borate

机译：热处理的合成及其对模板硼酸盐发光行为的影响

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摘要

Templated pentaborates have potential application as LEDs. The organically templated pentaborate [C_2H_8N][B_5O_6(OH)_4] (A) was synthesized by the reaction of dimethylamine with boric acid in pyridine solution and the compound was characterized by elemental analysis, FT-IR and photoluminescence spectroscopy as well as TGDTA analysis and powder X-ray diffraction. The crystallographic structure of A was determined by single-crystal X-ray diffraction. It crystallizes in the monoclinic system, space group P1 with the parameters of a = 8.893(7) (?), b = 8.902(7) (?), c = 16.967(16) (?), α = 102.620(12)°,β = 102.817(11)°, γ = 99.107(5)°, V = 1247.5(18) ?~3 and Z = 4. The luminescent properties of the compound were studied, and a purple-pink luminescence occurs with an emission maximum at 473 nm. The photoluminescence of A can be changed from purplepink to white by means of a simple heat-treatment process. The whitelight-emission of the as-synthesized sample G makes the pentaborate a good candidate for display and lighting applications in white LEDs.
机译：模板化的五价硼酸盐具有作为LED的潜在应用。通过二甲基胺与硼酸在吡啶溶液中的反应合成有机模板化的五硼酸酯[C_2H_8N] [B_5O_6（OH）_4]（A），并通过元素分析，FT-IR和光致发光光谱以及TGDTA分析对化合物进行表征和粉末X射线衍射。通过单晶X射线衍射确定A的晶体结构。它在单斜晶系空间群P1中结晶，其参数为a = 8.893（7）（？），b = 8.902（7）（？），c = 16.967（16）（？），α= 102.620（12） °，β= 102.817（11）°，γ= 99.107（5）°，V = 1247.5（18）α〜3和Z =4。研究了该化合物的发光特性，并出现了紫粉色发光。最大发射波长为473 nm。通过简单的热处理过程，A的光致发光可以从紫粉色变为白色。合成样品G的白光发射使五聚体成为白色LED的显示和照明应用的良好候选者。

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