Title | Synthesis, structure and magnetic properties of 3D interpenetrating nets of M(pyrazine)[Au(CN)(2)](2) (M = Cu, Ni, Co) supported by aurophilic interactions |
Publication Type | Journal Article |
Year of Publication | 2001 |
Authors | Leznoff, DB, Xue, BY, Stevens, CL, Storr, A, Thompson, RC, Patrick, BO |
Journal | Polyhedron |
Volume | 20 |
Pagination | 1247-1254 |
Date Published | May |
Type of Article | Proceedings Paper |
ISBN Number | 0277-5387 |
Keywords | ANTIFERROMAGNET, aurophilic, COMPLEXES, COMPONENT, coordination polymers, CRYSTAL-STRUCTURE, Cu(II) complexes, cyanide ligands, DICYANOAURATE(I), FERROMAGNET, interactions, interpenetration, MAGNETIC PROPERTIES, NITRATE, NITROXIDE, Pyrazine |
Abstract | {New inorganic coordination polymers of the form M(pyrazine)[Au(CN)(2)](2) (M = Cu (1); Ni (2); Co (3)) have been prepared and the copper(II) analogue structurally characterised. The X-ray analysis revealed two 3D interpenetrating alpha -polonium networks consisting of 1D chains of Cu-pyrazine units connected by [Au(CN)(2)] bridges. The two networks are connected via weak aurophilic interactions (Au-Au: 3.4729(2) Angstrom). Thermogravimetric analysis of all three compounds indicated the robust nature of these 3D systems, with decomposition beginning at 260 (1), 406 (2) and 360 degreesC (3). The magnetic susceptibility of 1 shows a maximum in chi (M) at 5.0 K; these data could be fitted to the theoretical expressions for either a 1D or a 2D Heisenberg antiferromagnetic array (J = -2.74 cm(-1) |
URL | <Go to ISI>://000169804400021 |