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Solvent‐triggered single‐crystal‐to‐single‐crystal transformation from a monomeric to polymeric copper(II) complex based on an aza macrocyclic ligand
Author(s) -
Shin Jong Won,
Jeong Ah Rim,
Kim Younghak,
Kim Dae-Woong,
Lee Sang-Geul,
Lee Hyosun,
Moon Dohyun
Publication year - 2020
Publication title -
acta crystallographica section b
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.604
H-Index - 33
ISSN - 2052-5206
DOI - 10.1107/s2052520620002371
Subject(s) - copper , single crystal , monomer , ligand (biochemistry) , solvent , chemistry , macrocyclic ligand , polymer chemistry , transformation (genetics) , crystallography , polymer , crystal structure , organic chemistry , receptor , biochemistry , gene
Reversible solvent‐triggered single‐crystal‐to‐single‐crystal (SCSC) transformations are observed between two copper(II) azamacrocyclic complexes: [Cu(C 16 H 38 N 6 )(H 2 O) 2 ](C 12 H 6 O 4 ) (1) and [Cu(C 16 H 38 N 6 )(C 12 H 6 O 4 )] (2). Complex (1) was prepared via self‐assembly of a copper(II) azamacrocyclic complex containing butyl pendant groups, [Cu(C 16 H 38 N 6 )(ClO 4 ) 2 ], with 2,7‐naphthalenedicarboxylic acid. When monomeric compound (1) was immersed in CH 3 OH, coordination polymer (2) was obtained, indicating a solvent‐triggered SCSC transformation. Furthermore, when (2) was immersed in water, an reverse SCSC transformation from (2) to (1) occurred. Complex (1) presents a 3D supramolecular structure formed via intermolecular hydrogen‐bonding interactions, whereas complex (2) features a 1D zigzag coordination polymer. The reversible SCSC transformation of (1) and (2) was characterized using single‐crystal X‐ray diffraction and in situ powder X‐ray diffraction techniques. Despite its poor porosity, complex (2) displayed interesting CO 2 adsorption behaviour under CO 2 gas.