From {Au<sup>I</sup>···Au<sup>I</sup>}‑Coupled Cages to
the Cage-Built 2‑D {Au<sup>I</sup>···Au<sup>I</sup>} Arrays: Au<sup>I</sup>···Au<sup>I</sup> Bonding
Interaction Driven Self-Assembly and Their Ag<sup>I</sup> Sensing
and Photo-Switchable Behavior
Xuan-Feng Jiang
Franky
Ka-Wah Hau
Qing-Fu Sun
Shu-Yan Yu
Vivian Wing-Wah Yam
10.1021/ja502295c.s001
https://acs.figshare.com/articles/journal_contribution/From_Au_sup_I_sup_Au_sup_I_sup_Coupled_Cages_to_the_Cage_Built_2_D_Au_sup_I_sup_Au_sup_I_sup_Arrays_Au_sup_I_sup_Au_sup_I_sup_Bonding_Interaction_Driven_Self_Assembly_and_Their_Ag_sup_I_sup_Sensing_and_Photo_Switchable_Behavior/2560306
Metal–metal
bonding interactions have been used to generate
a number of unique supramolecular assemblies with fascinating functions.
We presented here a new class of gold(I)-containing metallosupramolecular
cages and cage-built two-dimensional (2-D) arrays of {Au<sub>8</sub>L<sub>2</sub>}<sub><i>n</i></sub> (<i>n</i> =
1 or ∞, L = tetrakis-dithiocarbamato-calix[4]arene, TDCC), <b>1</b>–<b>3</b>, which are constructed from the self-assembly
of deep-cavitand calix[4]arene-based supramolecular cages consisting
of octanuclear Au(I) motifs. Synchrotron radiation X-ray diffraction
structural analyses of <b>1</b>–<b>3</b> revealed
their quadruple-stranded helicate dimeric cage structure and the presence
of 2-D arrays of cages linked together by inter- and intramolecular
Au<sup>I</sup>···Au<sup>I</sup> interactions. Electronic
absorption and emission studies of complexes <b>1</b>–<b>3</b> indicated the occurrence of a programmable self-assembly
process in a concentration-dependent stepwise manner with the links
built via aurophilic interactions. These novel gold(I) supramolecular
cages exhibited green phosphorescence and have been shown to serve
as highly selective proof-of-concept luminescent sensors toward Ag<sup>I</sup> cation among various competitive transition-metal ions.
2014-08-06 00:00:00
Electronic absorption
aurophilic interactions
supramolecular assemblies
cage
emission studies
8L
array
AuI
TDCC
AgI cation