Oxygen and methanol mediated irreversible coordination polymer structural transformation from a 3D Cu(i)-framework to a 1D Cu(ii)-chain†
Abstract
An interesting irreversible structural transformation visible to the naked-eye occurs when a 3D Cu(I)–polymeric complex Cu2L(NO3)2(DMF)0.4 (1) is suspended in CH3OH in air to produce a 1D-Cu(II) polymeric complex Cu(μ-OCH3)(L)(NO3) (2) (L = 1,2-bis[4-(pyrimidin-4-yl)phenoxy]ethane). The transformation mechanism from 1 to 2 was also investigated.