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. Author manuscript; available in PMC: 2012 Oct 26.
Published in final edited form as: J Am Chem Soc. 2011 Oct 5;133(42):17045–17055. doi: 10.1021/ja207217t

Figure 4.

Figure 4

(a) 31P{1H} NMR spectrum of the discrete [6 + 4] metal-organic supramolecule 3; (b and c) 31P{1H} NMR spectra of the structural modification of 3 to 7; (d) 31P{1H} NMR spectrum of 7 formed from its components; (e) 1H NMR spectrum of the triflate salt of 7.