title: Tuning stoichiometry and supramolecular assembly in perfluorinated indazolato coinage metal complexes.
abstract: The reaction of 3-pentafluoroethyl-4,5,6,7-tetrafluoro-1-H-indazole [3-(C2F5)IndF4]H with Ag2O or [Cu(CH3CN)4]BF4 leads to the formation of two different types of complexes: a trinuclear {[3-(C2F5)IndF4]Ag}3 complex (1) in the case of silver, and an unprecedented type of pentanuclear complex [Et3NH]{Cu5[3-(C2F5)IndF4]6} (2) in the case of copper. When crystallised from Et2O, appears as a dimer with d(10)-d(10) interactions. When crystallized from toluene, affords the [(toluene)(1)(toluene)] adduct, testifying to its strong π-acid properties. The formation and the aggregation pattern of 1 and 2 can be traced to the extended aromaticity and high electron withdrawing properties of the perfluorinated [3-(C2F5)IndF4](-) indazolate.
authors.affiliation: CNRS, Laboratoire de Chimie de Coordination, BP 44099, 205 route de Narbonne, F-31077 Toulouse, France.
authors.forename: Michael
authors.initials: M
authors.lastname: Kleinwächter
authors.forename: Laure
authors.initials: L
authors.lastname: Vendier
authors.forename: Chiara
authors.initials: C
authors.lastname: Dinoi
authors.forename: Michel
authors.initials: M
authors.lastname: Etienne