Flexible "piperazine-pyrazine'' building blocks: conformational isomerism of "equatorial-axial'' sites toward the constructions of silver(I) coordination chains

[[abstract]]The Ag(bpzp)-based coordination polymers are susceptible to the influence of both the conformational isomerism of "equatorial-axial'' donating sites of the conformationally flexible bpzp ligand and the capability of anion coordination, resulting in different one-dimensional snake-like chain structures that feature a linear, a slightly off linear, and a zig-zag pattern.[[note]]SC