Crystal Structure of Barrel-Shaped Chiral Au130(p-MBT)50 Nanocluster

• DOI: 10.1021/jacs.5b05378
• Publication Date: 2015-08-05T17:35:08Z
• Authors: Yuxiang Chen; Chenjie Zeng; Chong Liu; Kristin Kirschbaum; Chakicherla Gayathri; Roberto R. Gil; Nathaniel L. Rosi; Rongchao Jin
• Keywords: 01 natural sciences; 0104 chemical sciences

We report the structure determination of a large gold nanocluster formulated as Au130(p-MBT)50, where p-MBT is 4-methylbenzenethiolate. The constructed in four-shell manner, with 55 atoms assembled into two-shell Ino decahedron. surface protected exclusively by -S-Au-S- staple motifs, which self-organize five ripple-like stripes on barrel-shaped Au105 kernel. Au130(p-MBT)50 can be viewed an elongated version Au102(SR)44. Comparison recently discovered icosahedral Au133(p-TBBT)52 (where p-TBBT = 4-tert-butylbenzenethiolate) reveals interesting phenomenon that subtle ligand effect para-position benzenethiolate significantly affect atom packing structure, i.e. from 5-fold twinned Au55 decahedron to 20-fold icosahedron.