Gold Nanowired: A Linear (Au25)n Polymer from Au25 Molecular Clusters
Au25(SR)18 has provided fundamental insights into the properties of clusters protected by monolayers of thiolated ligands (SR). Because of its ultrasmall core, 1 nm, Au25(SR)18 displays molecular behavior. We prepared a Au25 cluster capped by n-butanethiolates (SBu), obtained its structure by single-crystal X-ray crystallography, and studied its properties both experimentally and theoretically. Whereas in solution Au25(SBu)18(0) is a paramagnetic molecule, in the crystal it becomes a linear polymer of Au25 clusters connected via single Au-Au bonds and stabilized by proper orientation of clusters and interdigitation of ligands. At low temperature, [Au25(SBu)18(0)]n has a nonmagnetic ground s…
CCDC 998586: Experimental Crystal Structure Determination
Related Article: Marco De Nardi, Sabrina Antonello, De-en Jiang, Fangfang Pan, Kari Rissanen, Marco Ruzzi, Alfonso Venzo, Alfonso Zoleo, Flavio Maran|2014|ACS Nano|8|8505|doi:10.1021/nn5031143