1 research outputs found
Reversible Single-Crystal-to-Single-Crystal Transformation and Magnetic Change of Nonporous Copper(II) Complexes by the Chemisorption/Desorption of HCl and H<sub>2</sub>O
Vapor-responsive
magnetic materials are highly promising for applications as chemical
switches or sensors. Compared with porous materials, nonporous species
benefit in overcoming the intrinsic conflict between magnetic exchange
and porosity but usually suffer from the powdering of single crystals,
which hinders the understanding of the structural nature of vapor
response and magnetic switch. Single-crystal-to-single-crystal (SCSC)
transformation of nonporous compounds through the desorption/absorption
of gaseous HCl is unprecedented. Reported here is a discrete nonporous
copperÂ(II) complex, (H<sub>3</sub>O)Â[KÂ(15-crown-5)<sub>2</sub>]Â[CuCl<sub>4</sub>], that exhibits reversible SCSC transformation and magnetic
change by the chemisorption/desorption of HCl and H<sub>2</sub>O.
Significant changes in the coordination number (4 ↔ 3), space
group (<i>P</i>1̅ ↔ <i>P</i>2<sub>1</sub>/<i>c</i>), color (green ↔ red), and magnetic
behavior (antiferromagnetic ↔ paramagnetic) were found during
the SCSC transformation