Self-Assembly of a Au16 Ring via Metal-Metal Bonding Interactions

Metal–metal bonding interactions have been employed as an efficient strategy to generate a number of unique gold(I) metallo‐macrocycles with fascinating functions. The self‐assembly, crystal structure and emission property of novel nest‐like tetramer 14, namely, {[Au4(μ‐dppm)2(μ‐dctp2−)](BF4)2}4⋅(CH...

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Bibliographic Details
Published in:Chemistry, an Asian journal an Asian journal, 2015-05, Vol.10 (5), p.1146-1149
Main Authors: Wang, Ya-Qing, Jiang, Xuan-Feng, Li, Hao, Yu, Shu-Yan
Format: Article
Language:English
Subjects:
aurophilicity
Chemistry
gold
macrocycle
self-assembly
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Summary:Metal–metal bonding interactions have been employed as an efficient strategy to generate a number of unique gold(I) metallo‐macrocycles with fascinating functions. The self‐assembly, crystal structure and emission property of novel nest‐like tetramer 14, namely, {[Au4(μ‐dppm)2(μ‐dctp2−)](BF4)2}4⋅(CH3CN)2 (dppm=bis(diphenylphosphino)methane, dctp2−=N,N′‐bis(dicarbodithioate)‐2,11‐diaza[3.3]paracyclophane) is reported. The complex has been characterized by single‐crystal X‐ray diffraction analysis, 1H NMR spectroscopy, 13C NMR spectroscopy, and CSI‐MS spectrometry. The aggregate demonstrates the sixteen gold(I) atoms are arranged in a ring with a circumference of 50.011(68) Å generated by AuI⋅⋅⋅AuI attractions. UV/visible and luminescence spectroscopy revealed that this AuI⋅⋅⋅AuI bonded metallo‐macrocycle exhibited yellow phosphorescence. Gold ring: A novel metallo‐macrocyle composed of 16 gold(I) atoms self‐assembled via strong AuI⋅⋅⋅AuI bonding interactions in the solid state and exhibited yellow phosphorescence.
ISSN:1861-4728
1861-471X
DOI:10.1002/asia.201403448