Hexameric PalladiumII Terpyridyl Metallomacrocycles: Assembly with 4,4′Bipyridine and Characterization by TWIM Mass SpectrometryWe thank the National Science Foundation for generous financial support grant nos.CHE0517909 and 0833087 to C.W., no.DMR0705015 to G.R.N., and no.DMR0821313 for the purchase of the instrument for the TWIMMS studies. We gratefully acknowledge the expertise of Dr. Mingming Guo, Solid State NMR Manager at The University of Akron for his help with the 2DDOSYNMR experiments. We are grateful to Dr. Thomas Wyttenbach and Prof. MichaelT. Bowers for helpful discussions on collision cross sections in ionmobility experiments. TWIMtraveling wave ion mobility.

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