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A Tray‐Shaped, Pd II ‐Clipped Au 3 Complex as a Scaffold for the Modular Assembly of [3× n ] Au Ion Clusters
Author(s) -
Osuga Takafumi,
Murase Takashi,
Hoshino Manabu,
Fujita Makoto
Publication year - 2014
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201404892
Subject(s) - cluster (spacecraft) , ion , chemistry , scaffold , crystallography , tray , metal , clipping (morphology) , stereochemistry , nanotechnology , materials science , organic chemistry , computer science , mechanical engineering , linguistics , philosophy , engineering , programming language , database
A tray‐shaped Pd II 3 Au I 3 complex ( 1 ) is prepared from 3,5‐bis(3‐pyridyl)pyrazole by means of tricyclization with Au I followed by Pd II clipping. Tray 1 is an efficient scaffold for the modular assembly of [3×n] Au I clusters. Treatment of 1 with the Au I 3 tricyclic guest 2 in H 2 O/CH 3 CN (7:3) or H 2 O results in the selective formation of a [3×2] cluster ( 1 ⋅ 2 ) or a [3×3] cluster ( 1 ⋅ 2 ⋅ 1 ), respectively. Upon subsequent addition of Ag I ions, these complexes are converted to an unprecedented Au 3 –Au 3 –Ag–Au 3 –Au 3 metal ion cluster.