{[Cu(mtz)]3(CuI)}n:  An Unprecedented Non-interpenetrated (123)(122·14)3 Network with Triple-Stranded Helices

A complex with triple-stranded helices, {[Cu(mtz)]3(CuI)}n, was obtained under hydrothermal conditions. The complex possesses an unprecedented non-interpenetrated (123)(122·14)3 network, which represents the first example of the largest gon value of the smallest ring for the Archimedean net reported so far.