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Thermally Stable Imines as New Potential Nonlinear Optical Materials

机译：热稳定的亚胺作为新的潜在非线性光学材料

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摘要

In the search for new thermostable acentric nonlinear optical (NLO) crystalline materials, several polar imine derivatives with the general structure D--A(D') were synthesized and studied. Introduction of the amino group (D') into the acceptor moiety of these molecules was supposed to bring hydrogen bonds into the crystal structures, and so to elevate their melting points and to assist acentric molecular packings. Ten compounds of this type have been prepared, and for six of them single crystals have been grown and characterized by X-ray diffraction analysis. High melting points were found for all synthesized compounds. It was found that four compounds have acentric crystal structures. Analysis of the crystal packing and hydrogen bonding in the compounds studied has been carried out along with quantum calculations of the molecular NLO responses. This allowed an understanding of the thermal stability of the compounds studied and some of their NLO characteristics.
机译：在寻找新的热稳定的无定心非线性光学（NLO）晶体材料时，合成并研究了几种具有一般结构D--A（D'）的极性亚胺衍生物。氨基（D'）引入这些分子的受体部分被认为是将氢键带入晶体结构，从而提高了它们的熔点并有助于无心分子的堆积。已经制备了十种这种类型的化合物，并且对于其中的六种已经生长并且通过X射线衍射分析表征。发现所有合成化合物的熔点都很高。发现四种化合物具有无心晶体结构。已对所研究化合物的晶体堆积和氢键进行了分析，并对分子NLO反应进行了量子计算。这样就可以了解所研究化合物的热稳定性及其某些NLO特性。

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