Nanosized Silver(I) Coordination Networks of Mixed Bix-Diphosphine (Bix = 1,4-Bis(imidazol-1-ylmethyl)benzene)

Assembly of silver(I) salts and bix in the presence of diphosphines provided four polymeric complexes [Ag(bix)(dppe)] n .nBF 4 (1), [Ag(bix)(dppp)] n .nPF 6 (2), [Ag(bix)(dppe)] n .nPF 6 .nCH 3 OH (3), and [Ag(bix)(dppe)] n .nSbF 6 . nCH 3 OH (4). X-ray diffraction analyses reveal that both 1 and 2 have a two-dimensional network composed of nanosized metallocyles, and the [Ag(bix)] n chains in 2 show alternate left and right helices. Complexes 3 and 4 are isomorphous, and they have 3D open frameworks of diamondoid topology with the size of 13 x 13 A 2 along the b-axis. Possible formation processes were interpreted by ESI-MS results.