Efficient one-pot synthesis of [3]catenanes based on Pt(II) metallacycles with a flexible building block
Two quadrilateral metallacycles were prepared by coordination-driven self-assembly of a 90° platinum(II) receptor 6 with a flexible donor 1,3-bis(4,4’-bipyridinium)propane 1a or 1,1-bis(4,4’-bipyridinium)methane 1b, respectively. Three [3]catenanes (3, 4 and 5)...