title: Synthesis and coordination chemistry of 1,1,1-tris-(pyrid-2-yl)ethane.
abstract: A new synthesis of 1,1,1-tris(pyrid-2-yl)ethane (L), and a survey of its coordination chemistry, are reported. The complexes [ML2](n+) (M(n+) = Fe(2+), Co(2+), Co(3+), Cu(2+) and Ag(+)), [PdCl2L] and [CuI(L)] have all been crystallographically characterised. Noteworthy results include an unusual square planar silver(i) complex [Ag(L)2]X (X(-) = NO3(-) and SbF6(-)); the oxidative fixation of aerobic CO2 by [CuI(L)] to yield [Cu2I(L)2(μ-CO3)]2[CuI3] and [Cu(CO3)(L)]; and, water/carbonato tape and water/iodo layer hydrogen bonding networks in hydrate crystals of two of the copper(ii) complexes. Cyclic voltammetric data on [Fe(L)2](2+) and [Co(L)2](2+/3+) imply that the peripheral methyl substituent has a weak influence on the ligand field exerted by L onto a coordinated metal ion.
authors.affiliation: School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK. a.santoro@leeds.ac.uk m.a.halcrow@leeds.ac.uk.
authors.forename: Amedeo
authors.initials: A
authors.lastname: Santoro
authors.forename: Carlo
authors.initials: C
authors.lastname: Sambiagio
authors.forename: Patrick C
authors.initials: PC
authors.lastname: McGowan
authors.forename: Malcolm A
authors.initials: MA
authors.lastname: Halcrow