Photochromism adjustment by the conjugation of electron-withdrawing ligand in two metal organic complexes

The 3-D zinc-organic complex with the conjugation bpee co-ligand features the reversible photochromism performance under UV irradiate and heating derived from the radical medium state, while it cannot display similar property with the conjugated bpee being replaced by the non-conjugated bpea in a isoreticular framework.190