Diamond molecule synthesis by plasmas generated in supercritical fluids and their characterization

金刚石分子，也就是所谓的类金刚石，在生物技术、医学和光电子学等领域有着广泛的应用前景。然而，它们的合成显示出困难。我们已经开发了一种高压/超临界等离子体微反应器，允许金刚烷的合成，使用最小的金刚烷作为前体和种子。这种微反应器表现出更高的反应产率相比，类似的合成方法和气相色谱？质谱测量表明合成了直至第十一类金刚烷成员。从较低的类金刚烷的生长过程中发现，进行逐步的方式，与重复的氢终端和甲基自由基的连接去除。

Diamond molecules, so-called diamondoids, hold promise for a wide range of applications such as biotechnology, medicine, and optoelectronics. However, their synthesis has shown to be difficult. We have developed a high-pressure / supercritical plasma microreactor that allows the synthesis of diamondoids, using the smallest diamondoid as a precursor and seed. This microreactor showed higher reaction yields compared to similar synthesis approaches and gas chromatography ? mass spectrometry measurements indicate the synthesis up to the eleventh diamondoid member. The growth process of higher diamondoids from lower ones was found to proceed in a step-wise manner, with repeated removal of hydrogen terminations and attachment of methyl radicals.