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 · n BF 4 ( 1 ), [Ag(bix)(dppp)] n · n PF 6 ( 2 ), [Ag(bix)(dppe)] n · n PF 6 · n CH 3 OH ( 3 ), and [Ag(bix)(dppe)] n · n SbF 6 · n CH 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 × 13 Å 2 along the b -axis. Possible formation processes were interpreted by ESI-MS results.