Coordination polymer-forming liquid Cu(2-isopropylimidazolate)?

Chemical Science Pub Date: 2022-09-12 DOI: 10.1039/D2SC03223F

Abstract

The structure of the melt state of one-dimensional (1D) coordination polymer crystal Cu(isopropylimidazolate) (melting temperature Tm = 143 °C) was characterized by DSC, variable temperature PXRD, solid-state NMR (SSNMR), viscoelastic measurements, XAS, and DFT-AIMD calculations. These analyses suggested “coordination polymer-forming liquid” formation with preserved coordination bonds above Tm. Variable chain configurations and moderate cohesive interaction in adjacent chains are the keys to the rarely observed polymer-forming liquid. The melt structure is reminiscent of the common 1D organic polymer melts such as entanglement or random coil structures.

Graphical abstract: Coordination polymer-forming liquid Cu(2-isopropylimidazolate)
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