A novel 2-D silver(I)–acyclic polyene coordination polymer assembled with linear unsaturated bridges

A novel 2-D silver(I) coordination polymer of 1,8-diphenylocta-1,3,5,7-tetraene was synthesized, and characterized by X-ray single crystal analysis. Reaction of 1,8-diphenylocta-1,3,5,7-tetraene (dpot) with silver(I) perchlorate at 60 °C afforded [Ag2(dpot)(ClO4)2]n (1). In this structure, silver(I) adopts a distorted tetrahedral geometry and the dpot molecules link the silver(I) ions in a trans-μ-tetra-η2 manner to generate 1-D chains with metallocyclophane motifs. Further, the silver(I) ions between the two neighboring chains are bridged by perchlorate groups to give a novel 2-D (3,4)-connected polymeric network with (4,62)2(42,62,82) topology. Additionally, the main plane of the phenyl moiety makes an angle of 33.08° with the topology through the polyene portion in 1, and thus the coordination of silver(I) to dpot results in the distortion of the dpot molecule. To the best of our knowledge, this is the first example of a silver(I) complex with acyclic polyene.