摘要:
A metalloligand type of synthetic route has been followed to generate a novel heterometallic three-dimensional (3D)-coordination polymer containing Cu(II) and trimethyltin as nodes. The first step of this synthetic path consisted of the preparation of a two-dimensional-coordination polymer of Cu(II), [Cu(mu-LH)(2)](n) (1) (LH2 = pyridine-2,5-dicarboxylic add). The reaction of in situ generated 1 with Me3SnCl afforded the heterometallic 3D-coordination polymer, [Cu(Me3Sn)(2)-(mu-L)(2)](n), (2). The latter is a 4,4-connected polymer with a sqc topology. This 3D-framework contains a paddle-wheel-shaped core comprised of two heterometallic (Cu-II/Sn-IV) macrocycles.