Source abstract
Abstract
We have recently pioneered per-cationized molecular gold (Au) cluster compounds. Herein, we present a new series of per-cationized Au cluster compounds, Au 144 (SR + ) 60, which is the largest reported compound with the most stable and studied Au clusters. Although it is typically difficult to obtain a single composition of a Au 144 cluster due to the existence of similar-sized quasi-stable compounds, optimized thermal etching and selective precipitation made strict size focusing into a single Au 144 composition possible and produced Au 144 (SR + ) 60 with high atomic precision. In positive-mode high-resolution ESI-MS, per-cationized Au 144 (SR + ) 60 clusters with different numbers of PF 6 – counteranions for the +12- to +21-charged states were observed. The Au 144 (SR + ) 60, 60(+) termini distributed over a spherical surface of radius ∼2.5 nm, presented here, is, to the best of our knowledge, the most polycationic molecular compound reported thus far.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Nanocluster Synthesis and Applications · Pharmacological Effects and Toxicity Studies · Advanced Nanomaterials in Catalysis
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Affiliations
Division of Materials Science and Engineering, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
Funding
Ministry of Education, Culture, Sports, Science and Technology · Nippon Sheet Glass Foundation for Materials Science and Engineering · Tokuyama Science Foundation · Japan Society for the Promotion of Science · Hitachi Global Foundation · Kao Foundation for Arts and Sciences · Iwatani Naoji Foundation · Suhara Memorial Foundation · Japan Prize Foundation · Foundation for Interaction in Science and Technology · Network Joint Research Center for Materials and Devices · Mayekawa Houonkai Foundation
References (32)
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