Bridged silver(I) complexes of the polycyclic aromatic compounds tetraphenylethylene and 1,1,4,4-tetraphenyl-1,3-butadiene

For the purpose of investigating the coordination behavior of the stericall y congested alkenes and exploring the possibility of cofacial complexation in the polycyclic aromatic system for formation of extended polymeric netwo rks, tetraphenylethylene (tphe) and 1,1,4,4-tetraphenyl-1,3-butadiene (tphb ) have been studied with regard to their complexation with a silver(I) ion. The crystal structures of [Ag(tphe)(ClO4)(p-xylene)], [Ag-2(tphe)(ClO4)(2) ], [Ag-4(tphe)(CF3SO3)(4)], [Ag-2(tphb)(ClO4)(2)], and [Ag-2(tphb)(CF3SO3)( 2)], together with the metal-free ligands tphe and tphb, have been determin ed by single-crystal X-ray diffraction. The pi -electron-rich cleft in orga nic components is found to offer a potential site for complexation, which c an be utilized to generate an interesting array of organometallic compounds with one- and two-dimensional frameworks.