Journal of the American Chemical Society
COMMUNICATION
’ ACKNOWLEDGMENT
This work is dedicated to the memory of Philippe Perrottet.
Financial support from the University of Geneva and SNF is
gratefully acknowledged. We thank E. Sandmeier for measuring
ESMS spectra with API III, K. Buchwalder for performing the
elemental analyses, and P.-Y. Morgantini for helping with
molecular modeling. We acknowledge Michael W€orle and all
the tutors of the Z€urich School of crystallography 2009.
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’ ASSOCIATED CONTENT
S
Supporting Information. Full synthetic procedures for
b
L2 and L3, dinuclear helicates [Ln2L23]6+, and pentanuclear
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Chem. 2010, 49, 606.
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Dalton Trans. 2009, 7625.
helicates [Ln5(L1)(L3)3]15+ 1H NMR spectroscopic data;
;
ESMS spectra; crystallographic data. Crystallographic CIF files
for the new structures. This material is available free of charge via
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44, 3299.
’ AUTHOR INFORMATION
Corresponding Author
10767
dx.doi.org/10.1021/ja204474v |J. Am. Chem. Soc. 2011, 133, 10764–10767