Two uranyl-copper(II) bimetallic coordination polymers containing trans-3,3(pyridyl)acrylic acid: structural variance through synthetic subtleties

Publication date: Available online 16 May 2019Source: Inorganica Chimica ActaAuthor(s): Andrew T. Kerr, J. August Ridenour, Alexander A. Noring, Christopher L. CahillAbstractThe hydrothermal reaction of the uranyl cation, copper(II), and trans-3,3(pyridyal)acrylic acid (T33PA) has yielded two new bimetallic uranyl containing coordination polymers, (UO2)2(C8H6O2N)6Cu (1) and [(UO2)2(O)(H2O)(C8H6O2N)3CuCl]•H2O (2). Herein we discuss the synthesis, structure, and luminescent properties of the 2D compounds 1 and 2, both of which contain uranyl-copper(II) cation-cation interactions (CCIs) and diminished uranyl emission. Further, compound 2 exhibits a similar architecture to that of a known compound, [(UO2)2Cu(C8H6O2N)3(O)(H2O)]•NO3, formed through nearly identical, yet distinguishing, synthetic conditions. The observed structural differences thereof suggest that subtle changes to synthetic conditions can produce significant and notable structural changes in bimetallic hybrid materials.Graphical abstractSubtle, yet distinguishing, changes to synthetic conditions produce significant and notable structural changes within a collection of uranyl-copper bimetallic hybrid materials.

Source: Inorganica Chimica Acta - May 17, 2019 Category: Chemistry Source Type: research