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Selective Endo and Exo Binding of Alkali Metals to Corannulene
Author(s) -
Spisak Sarah N.,
Zabula Alexander V.,
Filatov Alexander S.,
Rogachev Andrey Yu.,
Petrukhina Marina A.
Publication year - 2011
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.201103028
Subject(s) - corannulene , alkali metal , rubidium , ion , caesium , chemistry , crystallography , chemical physics , inorganic chemistry , potassium , molecule , organic chemistry
The ion size matters : The structures of corannulene monoanions crystallized with Cs + and Rb + ions in the presence of [18]crown‐6 reveal the intrinsic binding preferences of alkali metals and allow evaluation of the bowl deformation caused by negative charge distribution and metal binding. The large cesium cation coordinates exclusively to the concave face of C 20 H 10 − , whereas the smaller rubidium cation exhibits convex binding.