Water molecules turn out to be secret messengers for magnetism
Water is not usually thought of as a magnetic material. But a new study led by researchers at Tohoku University's Institute of Multidisciplinary Research for Advanced Materials, in collaboration with National Taipei University of Technology (Taipei Tech), has found that tiny shifts in the orientation of water molecules can flip on magnetic partnerships between metal ions that are not even…
A recent study published in Inorganic Chemistry reveals that water molecules may act as secret messengers for magnetism. Researchers from Tohoku University and National Taipei University of Technology discovered that shifts in water molecule orientation can link magnetic ions through hydrogen bonding, even when those ions are not directly bonded.
This discovery could provide chemists with a new tool to manipulate magnetic properties using the common and adjustable interaction of hydrogen bonds. By synthesizing two copper(II) complexes, the researchers found that cooling the compounds below 260 K caused water molecules to form an ordered arrangement, splitting the uniform hydrogen bonding pattern into two distinct types.
This reorganization paired up neighboring molecules and created antiferromagnetic spin dimers with interaction strengths around 10 K. The study demonstrates that hydrogen bonding can serve as a pathway for magnetic interactions between distant ions, offering chemists a new way to design magnetic materials through structural tweaks.
Written by urgent.news from Phys.org's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
