Ionic liquid-containing coordination polymer: solvent-free synthesis, incongruent melting, and glass formation

Tomoyuki Mochida; Yi Qiu; Yusuke Funasako; Makoto Inokuchi; Mariko Noguchi; Hiroki Fujimori; Yoshitomo Furushima

doi:10.1039/d2cc01375d

Ionic liquid-containing coordination polymer: solvent-free synthesis, incongruent melting, and glass formation

Chem Commun (Camb). 2022 Jun 9;58(47):6725-6728. doi: 10.1039/d2cc01375d.

Authors

Tomoyuki Mochida^{1

2}, Yi Qiu¹, Yusuke Funasako^{3

4}, Makoto Inokuchi³, Mariko Noguchi⁵, Hiroki Fujimori⁵, Yoshitomo Furushima⁶

Affiliations

¹ Department of Chemistry, Graduate School of Science, Kobe University, 1-1 Rokkodai, Nada, Kobe, Hyogo, 657-8501, Japan. tmochida@platinum.kobe-u.ac.jp.
² Research Center for Membrane and Film Technology, Kobe University, 1-1 Rokkodai, Nada, Kobe, Hyogo, 657-8501, Japan.
³ Department of Applied Chemistry, Faculty of Engineering, Sanyo-Onoda City University, 1-1-1, Daigakudori, Sanyo-Onoda, Yamaguchi, 756-0884, Japan.
⁴ Department of Applied Chemistry and Biochemistry, National Institute of Technology, Wakayama College, 77 Noshima, Nada, Gobo, Wakayama, 644-0023, Japan.
⁵ Department of Chemistry, College of Humanities and Sciences, Nihon University, 3-25-40 Sakurajosui, Setagaya-ku, Tokyo, 156-8550, Japan.
⁶ Materials Characterization Laboratories, Toray Research Center Inc., 3-7, Sonoyama 3-chome, Otsu, Shiga, 520-8567, Japan.

PMID: 35604120
DOI: 10.1039/d2cc01375d

Abstract

An ionic-liquid-containing 2D coordination polymer was synthesized via a solvent-free reaction. The material exhibited incongruent melting at 112 °C, forming a solid-liquid mixture; further heating to 240 °C led to complete melting. Upon cooling, the melt transformed into a solid-liquid mixture, from which the coordination polymer was gradually recovered at ambient temperature. Rapid cooling (>200 °C s^-1) of the melt resulted in complete vitrification at -28 °C.