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Counterion Distribution around Hydrophilic Molecular Macroanions: The Source of the Attractive Force in Self‐Assembly
Author(s) -
Pigga Joseph M.,
Kistler Melissa L.,
Shew ChwenYang,
Antonio Mark R.,
Liu Tianbo
Publication year - 2009
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200902050
Subject(s) - counterion , polarity (international relations) , polyoxometalate , solvent , association (psychology) , distribution (mathematics) , chemistry , chemical physics , ion , mathematics , philosophy , organic chemistry , epistemology , biochemistry , cell , catalysis , mathematical analysis
Growing blackberries : The association of counterions around {Mo 72 V 30 } polyoxometalate macroanions increases with increasing macroion concentration and decreasing solvent polarity. The counterion distribution extends about 2–9 Å from the macroion surface with the highest probability at 2–3 Å from the macroion surface. A close connection between counterion association and the self‐assembly of {Mo 72 V 30 } into “blackberry” structures is observed.