期刊
INORGANIC CHEMISTRY
卷 49, 期 11, 页码 4747-4749出版社
AMER CHEMICAL SOC
DOI: 10.1021/ic100330c
关键词
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资金
- NIH [GM-057052]
- NSFC [20902027]
- Shanghai Pujiang Program [09PJ-1404100]
- Shanghai Shuguang Program [09SG25]
- Innovation Program of SMEC [10ZZ32]
The design and synthesis of novel three-dimensional (3-D) supramolecular dendrimers is described. The coordination-driven selfassembly of a 120 degrees diplatinum acceptor and tritopic pyridyl donors bearing [G-0] - [G-3] Frechet-type dendrons results in a series of supramolecular dendrimers under mild conditions, possessing a robust adamantanoid core of well-defined shape and size. The assemblies were identified using multinuclear (P-31 and H-1) NMR spectroscopy and electrospray ionization mass spectrometry, as well as pulsed-field-gradient spin-echo (PGSE) NMR measurement together with computational simulations. Isotopically resolved mass spectral data support the existence of the [6 + 4] assembly of adamantanoid dendrimers, and the NMR results are consistent with the formation of these symmetrical assemblies. PGSE NMR measurements together with MMFF force-field modeling clearly reveal the structural feature of the 3-D supramolecular dendrimers with varying sizes.
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