Structure determination by transmission electron microscopy has revealed the long sought 144-gold atom particle. The structure exhibits deviations from face-centered cubic packing of the gold atoms, similar to the solution structure of another gold nanoparticle, and in contrast to a previous X-ray crystal structure. Evidence from analytical methods points to a low number of 3-mercaptobenzoic acid ligands covering the surface of the particle.

中文翻译：

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像差校正电子显微镜在原子分辨率下确定水溶性144-金原子粒子的结构

通过透射电子显微镜的结构确定已经揭示了期待已久的144-金原子颗粒。该结构表现出与金原子的面心立方堆积的偏差，类似于另一个金纳米粒子的溶液结构，并且与先前的X射线晶体结构相反。分析方法的证据表明，覆盖颗粒表面的3-巯基苯甲酸配体数量少。