[2.2]Paracyclophane Derivatives as Building Blocks for Coordination Polymers

Mihail Lucian Birsa; Henning Hopf; Peter G Jones; Laura Gabriela Sarbu; Lucian Gabriel Bahrin

doi:10.3390/ma16114051

[2.2]Paracyclophane Derivatives as Building Blocks for Coordination Polymers

Materials (Basel). 2023 May 29;16(11):4051. doi: 10.3390/ma16114051.

Authors

Mihail Lucian Birsa¹, Henning Hopf^{1

2}, Peter G Jones^{1

3}, Laura Gabriela Sarbu¹, Lucian Gabriel Bahrin^{1

4}

Affiliations

¹ Department of Chemistry, Alexandru Ioan Cuza University of Iasi, No. 11 Carol I Blvd., 700506 Iasi, Romania.
² Institute of Organic Chemistry, Technical University of Braunschweig, Hagenring 30, D-38106 Braunschweig, Germany.
³ Institute of Inorganic and Analytical Chemistry, Technical University of Braunschweig, Hagenring 30, D-38106 Braunschweig, Germany.
⁴ Center of Advanced Research in Bionanoconjugates and Biopolymers-Intelcenter, Petru Poni Institute of Macromolecular Chemistry, No. 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania.

Abstract

Several new di- and tetracarboxylic [2.2]paracyclophane derivatives were obtained via Suzuki coupling between the appropriately brominated [2.2]paracyclophanes and 4-(methoxycarbonyl)phenylboronic acid. The reaction of one of these products, namely pp-bis(4-carboxyphenyl)[2.2]paracylophane (12), with zinc nitrate afforded a 2D coordination polymer comprising zinc-carboxylate paddlewheel clusters linked together by cyclophane cores. The zinc center is five-coordinated in a square-pyramidal geometry, with a DMF oxygen atom at the apex and four carboxylate oxygen atoms in the base.

Keywords: Suzuki coupling; [2.2]paracyclophane; coordination polymer.

Grants and funding

This research received no external funding.