Campbell J. Coghlan, E. Campi, C. Forsyth
Feb 17, 2014
Citations
1
Influential Citations
8
Citations
Journal
Polyhedron
Abstract
Abstract Three bis(tacn) ligands 3,5-bis(1,4,7-triazacyclonon-1-ylmethyl)biphenyl (Lphx) (1), 3,5-bis(1,4,7-triazacyclonon-1-ylmethyl)benzoic acid (Lcax) (2) and 3,5-bis(1,4,7-triazacyclonon-1-ylmethyl)-nitrobenzene (Lnix) (3) have been synthesised. Reactions of these ligands with two equivalents of Cu(NO3)2·3H2O in the presence of NaOH and NH4PF6 resulted in crystallisation of three distinct product classes, viz (i) polymeric {[Cu2(μ-Cl)2(Lphx)](PF6)2}n (5) in which the Lphx ligand bridges two Cu2 moieties, (ii) tetranuclear [Cu2(μ-OH)(Lcax)]2(NO3)2(PF6)2·2H2O (6) in which two “head to tail” Lcax ligands chelate to two Cu2 moieties, and (iii) dinuclear [Cu2(μ-OH)(μ-Cl)(Lnix)](NO3)(PF6) (7) where the Lnix ligand chelates to a single Cu2 centre.