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Diphosphinite Ag I and Pd II Dinuclear Complexes as Adaptable Anion Receptors: An Unprecedented Bridging Mode for the PF 6 − Ion
Author(s) -
Li Changxiu,
Pattacini Roberto,
Graff Roland,
Braunstein Pierre
Publication year - 2008
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.200801850
Subject(s) - steric effects , fluorene , moiety , bridging (networking) , ion , chemistry , stereochemistry , ligand (biochemistry) , crystallography , bridging ligand , receptor , crystal structure , computer science , organic chemistry , polymer , biochemistry , computer network
The special guest : In the host–guest chemistry of dinuclear complexes that contain the 9 H ‐fluorene‐9,9′‐dimethanediphenylphosphinite ligand the synergy between the phenyl groups and the axial fluorene moiety leads to the formation of molecular cavities that have selective steric affinity for the anions BF 4 − or PF 6 − (see picture). An unprecedented M⋅⋅⋅F(PF 5 )⋅⋅⋅M bridging coordination mode of PF 6 − has now been established.