The First Highly Stable Homochiral Olefin−Copper(I) 2D Coordination Polymer Grid Based on Quinine as a Building Block

Abstract

Solvothermal reactions of quinine with CuICl or CuIBr yield the two highly stable homochiral copper(I)−olefin coordination polymers Cu8Cl10(H-quinine)2 (1) and Cu8Br10(H-quinine)2 (2), respectively, in which both 1 and 2 are 2D layered networks and are isostructural. The electric hysteresis loop of 1 clearly shows it displays a typical ferroelectric behavior with a remanent polarization (Pr) of ca. 0.12 μC cm-2.