The quest for crystals of sp bonded carbon chains or carbynes has been a goal of several research groups. In this paper, we report a new method based on chemical synthesis that can produce a large amount of polycrystalline carbon chains. We use a solution of 1-dodecanothiol and gold salts that are subjected to microwave radiation. The resulting material is a white powder containing carbon chains stabilized by thiolates as predicted by Tarakeshwar et al. [1]. We used Raman spectroscopy, X Ray Diffraction, and TEM to characterize the material. After crystallization of the sample, we found a prominent phase, a hexagonal lattice with (P6mm) space group and parameters a = 6.2 Å and c = 8.8 Å. However, other phases might be present. Gold nanoparticles with thiolate on the surface act as catalysts for chain formation and this promotes the rapid growth of carbon chains. Our material is a pseudo carbyne and not a pure carbon allotrope since it contains gold and sulfur. Nevertheless, this work opens the door to fabricating enough material for research on the properties of sp bonded carbon materials.

中文翻译：

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通过金硫醇络合物稳定化制备碳链（假碳炔）

寻找sp2键合碳链或卡宾晶体一直是多个研究小组的目标。在本文中，我们报告了一种基于化学合成的新方法，可以产生大量的多晶碳链。我们使用 1-十二烷硫醇和金盐的溶液进行微波辐射。所得材料是一种白色粉末，含有由硫醇盐稳定的碳链，正如 Tarakeshwar 等人所预测的那样。 [1]。我们使用拉曼光谱、X 射线衍射和 TEM 来表征材料。样品结晶后，我们发现了一个突出的相，即具有 (P6mm) 空间群和参数 a = 6.2 Å 和 c = 8.8 Å 的六方晶格。然而，可能存在其他阶段。表面带有硫醇盐的金纳米粒子充当链形成的催化剂，这促进了碳链的快速增长。我们的材料是假碳炔，而不是纯碳同素异形体，因为它含有金和硫。尽管如此，这项工作为制造足够的材料来研究 sp 键合碳材料的性能打开了大门。