Controlled Assembly Synthesis of Atomically Precise Ultrastable Silver Nanoclusters with Polyoxometalates
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https://figshare.com/articles/dataset/Controlled_Assembly_Synthesis_of_Atomically_Precise_Ultrastable_Silver_Nanoclusters_with_Polyoxometalates/11336813
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资源简介：
Silver nanoclusters have attracted scientific interest
due to their
properties and applications. However, practical synthetic methods
to access these materials are still limited mainly due to the low
stability. Here, we report a controlled assembly strategy for fabricating
atomically precise silver nanoclusters using polyoxometalates (POMs)
as structure-directing as well as functionalizing units. A trefoil-propeller-shaped
{Ag27}17+ nanocluster was synthesized by assembling
reactive nanoclusters supported by open-Dawson-type POMs [Si2W18O66]16–. The {Ag27}17+ nanocluster possessed 10 delocalized valence electrons
and showed unprecedented ultrastability in solutions. The cluster
showed unique {Ag27}-to-POM charge transfer bands in the
visible light region.
创建时间：
2019-12-04
